Fetco Home Decor Coffeemaker CBS 31AAP User Manual

User’s Guide

www.fetco.com

CBS-3000A Series Coffee Brewers

Models:

CBS-31A

CBS-31Aap

CBS-32A

CBS-32Aap

Table of Contents

Contact Information ..................................................2

Product Description/Features...................................2

Technical Data..........................................................2

Brewing Specifications..........................................2

Weights and Capacities ........................................3

Electrical Configuration and Brewing Efficiency ...3

Dimensional Drawings & Utilities..............................4

Installation.................................................................5

Operating Procedures ..............................................7

Service......................................................................8

Warranty................................................................8

Principles of Operation..........................................8

Adjustments ..........................................................9

Brewer Parts...........................................................11

CBS 31A & 32A ..................................................11

Parts Drawing: CBS 31A & CBS 32A .................13

Troubleshooting......................................................14

FETCO® is a trademark or trade name of Food Equipment Technologies Company.

Part # P002

Revised August 2, 2006

Weights and Capacities

Brewer

Model

Weight

(empty)

Water tank

Weight

(filled)

Dispenser

Weight, ea.

Dispenser.

Filled, ea.

Total Weight Brewer&

Dispensers, filled

Capacity & Weight

CBS-31A

24 lbs.

1.8 gal. 15.0 lbs. 39.0 lbs.

1.7 gal. 14.1 lbs. 37.1 lbs.

4.9 gal. 40.7 lbs. 76.7 lbs.

4 lbs.

9.5 lbs. (2.5 L)

10.6 lbs. (3.0 L)

9.5 lbs. (2.5 L)

10.6 lbs. (3.0 L)

48.5 lbs.

47.7 lbs.

95.7 lbs.

94.4 lbs.

CBS-31Aap 23 lbs.

CBS-32A 36 lbs.

CBS-32Aap 35 lbs.

4.6 gal

38.2 lbs 73.2 lbs.

Electrical Configuration and Brewing Efficiency

Brews per Hour (cold or hot water)

Heater

Voltage

Max. Amp 2.2 lit. (max 13) 2.5 lit. (max 12) 3.0 lit.(max 11)

Model

Configuration Connection Phase

Wires

draw

11.3

15.4

cold

hot

cold

hot

cold

hot

CBS-31A/Aap (-1) 1 X 1300 w

CBS-31A/Aap (-2) 1 X 1800 w

120

1 ph. 2 + grnd. 1.4

1 ph. 2 + grnd. 1.9

5.5 12.8 4.9 11.3 4.1 9.4

7.7 13.0 6.8 12.0 5.6 11.0

CBS-31A/Aap (-3) 1 X 2300w 120/208 1 ph. 3 + grnd. 1.8

120/220 1 ph. 3 + grnd. 2.0

8.7

9.2

10.0

7.4 13.0 6.5 12.0 5.4 11.0

8.5 13.0 7.5 12.0 6.3 11.0

9.8 13.0 8.6 12.0 7.2 11.0

7.7 17.7 6.8 15.6 5.6 13.0

120/240 1 ph. 3 + grnd. 2.4

CBS-32A/Aap (-1) 1 X 1800w

120

1 ph. 2 + grnd. 1.9

15.7

CBS-32A/Aap (-2) 2 X 2300w 120/208 1 ph. 3 + grnd. 3.5

120/220 1 ph. 3 + grnd. 3.9

17.3

18.2

19.8

14.7 27.0 13.0 24.0 10.8 22.0

17.1 27.0 15.0 24.0 12.5 22.0

19.6 27.0 17.3 24.0 14.4 22.0

120/240 1 ph. 3 + grnd. 4.7

Dimensional Drawings & Utilities

CBS-31A

CBS-32A

Electrical input and water

connection in rear

POW

STO

Electrical input and water

connection in rear

REA

BREW

POWE

STOP

READY

STOP

25-3/4"

16-5/8"

12-1/8"

10-3/8"

16-5/8"

16-7/8"

15-1/8"

4-1/2"

7" DIA.

7"DIA.

10-3/4"

18-3/4"

Water Requirements: 20-75 psig. 1/2 gpm flow rate. Water inlet is 1/4" male flare

Water Requirements: 20-75 psig. 1/4 gpm flow rate. Water inlet is 1/4" male flare

CBS-31Aap

CBS32Aap

Electrical input and water

connection in rear

Electrical input and water

connection in rear

BRE

POW

REA

BRE

REA

STO

23-3/8"

23-3/8”

6-7/8"

8-5/8"

12-7/8"

14"

15-3/4"

6-1/2" DIA.

10-3/4"

6-1/2" DIA.

18-3/4"

Water Requirements: 20-75 psig. 1/4 gpm flow rate. Water inlet is 1/4" male flare

Water Requirements: 20-75 psig. 1/2 gpm flow rate. Water inlet is 1/4" male flare

Installation

(For Qualified Service Technicians Only)

Keys To A Successful Installation

If not installed correctly by qualified personnel, the brewer may not operate properly and damage may result.

Damage resulting from improper installation are not covered by the warranty.

Here are the key points to consider before installation:

Electrical:

™

All FETCO brewers require NEUTRAL. Ground is not an acceptable substitute. Installation without neutral

may cause damage to the electronic components.

™

The electronic controls require at least 105 volts. Less than 105 volts will cause erratic behavior from the

brewer. On 120/208-240 volt models, the #2 terminal on the terminal block provides power to the controls.

The circuit breaker is located on the back of the brewer. To reset it, press and release the white button.

The electrical drawing for the brewer is located on the inside of the lower cover.

™

Plumbing:

™

This equipment is to be installed in compliance with the applicable federal, state, or local plumbing codes.

™

The water line must be flushed thoroughly prior to connecting it to the brewer to prevent debris from

contaminating the machine.

™

Verify that the water line will provide at least ¼ gallon per minute for the CBS-31, and ½ gallon per minute

for the CBS-32 before connecting it to the brewer.

General:

™ Use only qualified beverage equipment service technicians for installation. A Service Company Directory

may be found on our web site, http://www.fetco.com.

Installation Instructions

Brewer Setup

1. Review the dimensions for the unit you are installing. Verify that the brewer will fit in the space intended for

it, and that the counter or table will support the total weight of the brewer and dispensers when filled.

2. “Aap” model brewers are shipped with the legs attached. These legs are factory adjusted to one of two

settings. One setting is for the 2.2 liter air pot (narrow).* The other setting is for the 3.0 liter air pot (wide).*

The legs for the “A” model brewers are packed inside the brew basket, and must be attached by the

installer. Place the brewer on its back and screw in the legs.

3. Place the brewer on the counter or stand.

4. When the brewer is in position, level it front to back

as well as side to side by adjusting the legs.

5. Remove the lower cover to access the water and

electrical connections. Knock-outs are provided in

the back and base of the brewer body for the

connections.

Warning: Legs are to be adjusted for

leveling the brewer only. Do not use

for height adjustment or extend them

higher than necessary.

*Adjusting leg settings: Two holes are provided to adjust the width of the leg rails. Remove the ¼-20 allen head bolt with a

3/16 allen wrench.and move rail to line up with desired hole. Fasten ¼-20 allen bolt. Repeat process on other side.

Water Connection

1. Water inlet is a 1/4 inch male flare fitting.

2. The brewer can be connected to a cold or hot water line. Cold water is preferred for best coffee flavor, but

hot water will allow for faster recovery times.

3. Install a water shut off valve near the brewer to facilitate service. If an in-line water filter is used, it should

be installed after the water shut off valve, and in a position to facilitate filter replacement.

4. Flush the water supply line and filter before connecting it to the brewer.

5. Verify that the water line will provide at least ¼ gallon per minute for the CBS-31, and ½ gallon per minute

for the CBS-32, and that the water pressure is between 20 and 75 psig.

6. Use a wrench on the factory fitting when connecting the incoming water line. This will reduce stress on the

internal connections and reduce the possibility of leaks developing after the installation has been

completed.

Electrical Connection

1. Verify that the actual voltage at the electrical service connection is compatible with the specifications on the

brewer’s serial number label. Make sure the electrical service includes neutral.

2. The temperature and water tank fill level are pre-set at the factory. There is no need to turn off the heaters

during the installation process. The heaters are disabled by the control board until the tank is full of water.

The heating process will start automatically when the tank has filled.

3. Only 120vac powered units are shipped from the factory with power cords and plugs attached. For other

voltages, a terminal block is provided for connecting the incoming power wires. Consult local codes to

determine if a cord and plug can be installed, or if the unit must be hard wired.

4. A fused disconnect switch or circuit breaker on the incoming power line must be conveniently located near

the brewer, and its location and markings known to the operators.

Warning: To prevent

electrical shock, this

unit must be properly

grounded.

5. The body of the brewer must be grounded to a suitable building

ground. A ground lug is provided in the brewer next to the power

terminal block. Use only 10 gauge copper wire for grounding.

6. Electrical connections must be secured in-place within the unit to

meet national and local standards.

GROUND LUG

GROUND WIRE

GROUND LUG

208-240V

TERMINAL

BLOCK

120V CORD &

PLUG

TERMINAL

BLOCK

120V

NEUTRAL

Electrical Configurations – U.S. & Canada

7. Finally, connect the incoming power wires to the terminal block in accordance with applicable codes.

Final Setup

1. Turn on the incoming water supply line and inspect both inside and outside of the brewer for leaks in all

fittings and tubes

2. Turn on the incoming power.

3. Turn on the brewer’s main power switch.

4. Within 6 seconds, the hot water tank will begin filling until the water is sensed by the probe at the top of the

tank.

5. The heaters will be disabled by the control board until the tank is full.

6. The brewer will be ready for operation as soon as the ready light comes on to signify that the water tank is

up to temperature. The time required to reach brewing temperature will vary according to the electrical

configuration ordered.

7. Review the Operating Instructions. Brew one full batch (water only) on each side to confirm proper fill

levels. The brewer is factory set with water only (no coffee) to dispense the correct amount of water.

8. Re-attach the covers after one final inspection for leaks. Look closely in the top of the brewer at the

dispense fittings during this inspection.

Operator Training

Review the operating procedures with whoever will be using the brewer. Pay particular attention to the following

areas:

1. Always pre-heat the dispensers before the first use of each day by filling them half way with hot water, and

letting them stand for at least 15 minutes.

2. Don't remove the brew basket until it has stopped dripping.

3. Make sure the dispenser is empty before brewing into it.

4. Show how to attach covers, close, and or secure the thermal dispensers for transporting.

5. Show the location and operation of the water shut off valve as well as the circuit breaker for the brewer.

6. Steam from the tank will form condensation in the vent tubes. This condensation will drip into and then out

of the brew baskets. 1/4 cup discharging overnight is possible. Place an appropriate container under each

brew basket when not in use.

7. We recommend leaving the power to the brewer on overnight. The water tank is well insulated and will use

very little electricity to keep the tank hot. Leaving the brewer in the on position will also avoid delays at the

beginning of shifts for the brewer to reach operating temperature.

Operating Procedures

1. Turn the power switch (A) to the on position

•

The power switch will illuminate to indicate that the brewer has power and is operating.

When the ready light (B) illuminates, the brewer is fully up to temperature. The amount of time

required to gain full operating temperature will vary depending on the electrical configuration that was

ordered, and the temperature of the incoming water.

2. Prepare the brew baskets (F).

•

Place a paper filter in each basket to be used. Pour the appropriate amount of pre-measured, ground

coffee into the filter. The amount of coffee used will depend on your personal tastes and the

recommendation of your roaster.

•

Slide the brew basket back into the rails on the brewer.

Select full or half batch mode (C) (optional).

3. Prepare the dispenser(s).

•

Ensure that the dispensers are empty. If you are using

airpots, open the cover and remove the pump stem

before brewing.

•

Place the dispensers in position under the brew

baskets.

4. Press the brew switch (D) to start the brew cycle.

•

The brew light (E) will illuminate, verifying that the brew

cycle has begun.

•

It is normal for the ready light to go out after the start of

the brew cycle. On twin brewers, there is enough hot

water in the brewer to support a second brew, even if

the ready light is off. After brewing on both sides, you

must wait for the ready light to come back on.

Airpot

Gravity pot

•

The electrical configuration and the electrical power connected to the brewer will determine how long

before the ready light comes back on for the next brew.

If it is necessary to interrupt the brew cycle before it is finished, press the stop switch (G).

5. You now have a dispenser of freshly brewed coffee, ready to serve, that will taste fresh and stay hot.

ONLY a non-heated dispenser can do that.

•

If you are using airpots, insert the pump stem before closing the cover.

CAUTION:

Do not remove the brew basket immediately after the brew cycle has finished. Wait until

dripping from the bottom of the brew basket has stopped. Carefully remove the brew basket

while inspecting the inside of the basket for hot coffee that has not finished draining.

Legend:

A-Power switch

BREW

POWER

STOP

READY

B-Ready light

C-Full/half batch switch

D-Brew switch

E-Brew light

F-Brew basket

G-Stop switch

H-Hot water faucet

Service

Warranty

All FETCO brewers come with a limited warranty. All warranty service must be pre-authorized by calling the

FETCO Service Department at (800) 338-2699.

Principles of Operation

Fill System

The fill system consists of a liquid level control board, a water level probe at the top of the tank, and a fill valve. As

the water rises and touches the probe, continuity is established between the probe tip and the tank body, and the

fill valve closes.

When water is dispensed, the water level drops below the probe. After a 5 second delay, the fill valve opens until

the water touches the probe again. The 5 second delay, and the speed that water refills the tank during brewing,

results in many short bursts of water. The sound made by these repetitive bursts will let you know the fill system is

functioning normally. (This sound may not be audible in a noisy environment.)

The fill system is designed to protect the heaters during both the installation and a loss of the water supply. During

initial installation, or whenever the power switch is turned on, voltage will not be supplied to the thermostat until the

tank fills and water touches the water level probe. During operation, when water is dispensed and the water level

drops below the probe, a fill signal is sent to the fill valve. If no water is sensed by the probe after 40 seconds, the

voltage to the thermostat and the heaters is removed.

Water enters the tank near the bottom. This introduces cold incoming water directly to the heaters and away from

the dispense assembly.

The water tank can be drained through a valve located on the back of the brewer, near the incoming water

connection.

Temperature System:

The temperature system consists of an electronic thermostat, a temperature probe, and heating elements, and is

enabled by the liquid level control board. (See the previous section - Fill System.)

When the water level probe is in contact with water, power is delivered to the thermostat through the liquid level

control board. If the temperature probe senses that the water is not hot enough, the thermostat energizes the

heating elements through the mercury relay, the water is heated, and the ready light goes off.

Once the water temperature reaches the set point, the thermostat disengages power to the heaters and the ready

light illuminates. The thermostat is adjusted to 203° F ± 2° at the factory. (Slightly lower for high altitude

installations.)

Timing & Dispense System:

The timing system consist of the timer, the dispense valve, the brew start switch, and the brew stop switch. When

the brew start switch is pressed, the timer starts its’ cycle. The timer energizes the dispense valve, which opens

and allows water to flow into the brew basket. It also lights the brew light. The valve remains energized throughout

the brew cycle timed sequence.

When the timer finishes its cycle, it removes voltage from the dispense valve. The valve closes, the flow of water

stops, and the brew light goes out.

The brew stop switch is used only when it is necessary to interrupt the brew cycle before the cycle is finished.

The timer used with the half batch option has a small jumper wire on one end. A switch can replace this jumper to

open or close this connection. Opening this connection cuts the timed output in half.

Adjustments

Thermostat Adjustment:

For equipment manufactured before April 2004

The brewer’s water tank temperature is factory set at 203°F (slightly lower for high altitudes, to prevent boiling).

This setting will deliver water at 195°F ± 5° to the coffee grounds.

Measure the temperature by holding a thermometer in the stream of water flowing out of the hot water faucet. The

temperature should be 195°F ± 5°.

If an adjustment is necessary:

•

Remove the upper cover of the unit.

The thermostat is located in the upper section of the brewer. Locate the

adjustment stem, which may be taped to the thermostat.

Insert the stem into the adjustment hole.

Turn the adjustment stem slightly counterclockwise (as viewed from the stem

insertion point) to increase the temperature, and clockwise to decrease the

temperature.

•

Thermostat

•

If you decreased the temperature setting, run 2 or 3 brew cycles to allow

enough cold water into the brewer to lower the tank temperature.

Wait for the “ready” light to come on, and measure the temperature again.

Repeat until the desired temperature is obtained.

•

Replace the cover(s).

Effective April 2004:

A new digital thermostat and temperature probe were introduced as a direct replacement for the old style

thermostat and probe.

During normal operation, the digital readout displays the last two digits of the actual water temperature. When the

adjustment knob is turned, the readout begins flashing to indicate the set point, not the actual temperature. After

the knob is released, the readout stops flashing and displays the actual temperature again.

A red LED lights when the power to the thermostat is on. A yellow LED lights when the thermostat is calling for

heat.

To adjust, turn the adjustment knob. The display will flash, indicating that the display is showing the set point, not

the actual temperature.

Examples:

The display shows only the last 2 digits

of the temperature.

= 75°F

7 5

The dots below the numbers indicate the temp range.

0 dots – less than 100° F

= 187°F

8 7

1 dot – between 100° and 200° F

2 dots – over 200° F

= 203°F

0 3

Timer Adjustment:

For equipment manufactured before April 2004

The timers control the amount of water that is used for brewing. The dual sided

brewer, (CBS-32A, & 32Aap) has separate timers to control each side

independently.

All timers are factory set to deliver the correct amount of water.

There are three possible types of timers used:

•

Part # 51006 – full batch only (standard)

# 51006 timer, 120V

Part # 51005 – full / half batch (optional) The half batch setting provides

exactly half the amount of water as the full batch setting.

Part # 51017 – dual portion (optional) The timer has 2 independent settings.

•

Adjustment of the factory settings may be desired to compensate for the amount of

water absorbed by the coffee grounds. Approximately 2 ounces of water will be

absorbed for every ounce of coffee.

To adjust the timer:

•

Remove the brewer’s upper cover.

If your brewer has the half-batch or dual portion option, make sure the

selector switch is in the full batch position.

#51005

timer, full/half, 120V

•

Note the current setting of the dial before making any adjustments.

Turn the knob clockwise to increase and counter-clockwise to decrease the

timer setting. On the dual portion timer. the knob labeled “T1” controls the

full batch setting.

•

Run a full brew cycle to check the brew level.

If necessary, repeat the adjustment until the desired volume is obtained.

For the dual portion timer, set the selector switch on “half” and adjust the

knob labeled “T2” until the desired volume of water is obtained.

Replace the cover.

#51017

timer, dual portion, 120V

•

Effective April 2004:

A new digital timer was introduced as a direct replacement for the three old style timers. When a batch selector

switch is not connected, the timer functions as a single portion timer.

The timer has two independent settings, with three dials for each setting. The first dial in each group sets 100

second increments, the second dial sets 10 second increments, and the third dial sets 1 second increments.

A red LED lights when the power to the timer is on. A yellow LED lights when the timer is running.

A small flat head screwdriver is required to adjust the dials.

part # K034, digital timer, 100-120 VAC

part # K036, digital timer, 200-240 VAC (export versions only)

Brewer Parts

CBS 31A & 32A

Part # Description

Used on

52003 Ground lug terminal MEDIUM size

31a

32a

1010 Brewer Body Weldment

1005 Brewer Body Weldment

73007 Legs, 2.5" adjustable

23035 Brew basket, black plastic (9-3/4 x 4-1/2 filters)

23036 Brew basket, brown plastic ,tea (9-3/4” x 4-1/2” filters)

101098 Brew basket assy, stainless steel, (13” X 5” filters)

9010 Brew basket wire insert, 13” X 5”

71003 Faucet Seat cup, HOT water faucet

71039 Faucet, upper assy.

102031 Faucet assy. hot water

31a

32a

K034 Digital Timer Kit, 100-120VAC

K036 Digital Timer Kit, 200-240VAC (EXPORT)

58018 Lamp, "brew" indicator 220vac (export)

58017 Lamp, "brew" indicator 120vac

58064 Lamp, "ready" indicator, green 120VAC

58019 Lamp, "ready" indicator, green 220VAC (export)

58061 Switch, brew start rocker, momentary 240vac

58062 Switch, brew stop rocker, momentary 240vac

58063 Switch, power rocker, red, 120vac

58024 Switch, full/half batch selector, w/harness (optional)

108034 Liquid Level Control Brd. 100-120VAC, 50-100K ohm

108035 Liquid Level Control Brd. 200-240VAC, 50-100K ohm (EXPORT)

K033 Digital thermostat, 100-120VAC

K035 Digital thermostat, 200-240VAC (EXPORT)

3076 Mounting bracket (Thermostat)

52016 Relay mercury 20amp DP 120vac

52015 Relay mercury 20amp SP 120vac (120v brewer)

52021 Relay mercury 20amp SP (export 208-240vac coil)

52032 Relay mercury 20amp DP (export 208-240v coil)

52023 Terminal block w/ marking label

102035 Cord 16amp w/European plug assy.

102049 Cord 15amp w/British plug assy.

102050 Cord 15amp w/Australian plug assy.

102033 Cord, 120vac 20amp w/5-20p NEMA plug assy.

102032 Cord, 120vac 15amp w/5-15p NEMA plug assy.

1152 Brewer Back cover

2045 Brewer Back Cover Weldment

52020 Circuit Breaker 5 amp

32a

31a

3074 Fill Valve Mounting plate S-53

57017 Fill Valve assy., 240vac plastic (S-53 export)

31078 Fill Valve Fitting 3/8" FPT (inner) (S-53)

57006 Fill Valve assy.,120v plastic (S-53)

24012 Fill Valve Gasket

31096 Fill Valve Fitting 3/8" MPT x ¼” flare elbow (inlet)

4010 Tank Weldment

4009 Tank Weldment

31a

83007 Gasket, 7/8 o.d. x 9/16" I.d. (heater)

82019 Heater Screw, 10-32 x 1/4" ss (heater connection)

107006 Heater element 1300w 120v bottom mount

107001 Heater element 2300w 240v bottom mount

84005 Locknut, 9/16-18 (heater)

107007 Heater element 1800w 120v bottom mount

83008 Gasket, 1-1/16 o.d. x 9/16" I.d. (heater)

31009 Locknut 3/8" NPSL

32a

31009 Locknut 3/8" NPSL (2 ea. for dispense & water inlet)

Aap brewers use the same parts, except for the tank, body, and legs. Call Tech. Support At (800) 338-2699 for assistance with these items.

Part # Description

Used on

31a

25005 Silicone Tubing 5/8 x 3/8 x 7 1/2"

24010 Spray cutter FLOW DISK O Ring Seal

23104 spray cutter, clear plastic, 6+1

102043 Spray cutter FLOW DISK assy. (plastic)

57015 Valve, dispense, Coil 220vac (export)

102044 Dispense valve assy. 120vac

102045 Dispense valve assy. 220vac (export)

57016 Valve, dispense, Repair kit

3097 Mounting bracket (Disp. valve)

31a

32a

25006 Silicone Tubing 5/8 x 3/8 x 3"

25018 Silicone Tubing 5/8 x 3/8 x 4 3/4"

31071 Fitting tank dispense 1/2" barb x 3/8" MPT

31009 Locknut 3/8" NPSL (2 ea. for dispense & water inlet)

31009 Tank Fitting Locknut 3/8" NPSL (2 for disp & water inlet)

31009 Locknut 3/8" NPSL (2 ea. for dispense & water inlet)

31073 Tank Fitting 3/8" MPT x 3/8" hose barb (hot water tank out)

25007 Silicone Tubing 5/8 x 3/8 x 6 3/4"

31075 Faucet Fitting (hot water faucet mount) flare

101082 Thermos 2.2 liter w/brew-thru lid assy.

101057 Thermos 2.2 liter w/regular lid assy.

101076 Thermos lid regular (closed type)

101077 Cover assy. Brew-thru

31a

1157 Upper Cover

1153 Top (upper) Cover

31a

25008 Silicone Tubing 5/16 x 3/16 x 2 1/4"

25010 Silicone Tubing 5/16 x 3/16 x 3 1/2"

25019 Silicone Tubing (rht side only) 5/16 x 3/16 x 5"

29027 Plastic T Connector

25020 Silicone Tubing 5/16 x 3/16 x 4 1/2"

25009 Silicone Tubing 5/16 x 3/16 x 2 1/2"

31072 Fitting ¼" hose barb x 1/8" MPT

31006 By-pass & misc. Locknut 1/8" NPT

24002 Tank Cover Gasket

32a

31a

102013 Tank Cover assy.

21026 Water Level Probe Housing

2010 Water Level Probe Weldment

25004 Thermostat Temp probe Lead Cover (tubing)

102213 Digital temp probe assy., 12” (use with K033 digital thermostat only)

53026 thermostat temp probe 12" (use with K033 digital thermostat or 53012 thermostat)

31036 Thermostat Temp probe tank Fitting 1/4" MPT x 1/4" comp.

31037 Thermostat Temp probe Locknut 1/4" NSPL (temp. probe tank fitting)

45027 Nameplate

45025 Nameplate

31006 Locknut 1/8" NPT (1 on vent & 2 on bypass valve)

83005 By-pass & misc. Washer

31070 Fitting (by pass & tank drain outlet)

25023 Silicone Tubing (drain) 1/2 x 1/4 x 6 1/2"

31087 Fitting 5/16" hose I.D. x 1/8" FPT (drain valve)

31086 Drain cock 1/8" MPT

31a

32a

Aap brewers use the same parts, except for the tank, body, and legs. Call Tech. Support At (800) 338-2699 for assistance with these items

Parts Drawing: CBS 31A & CBS 32A

DW G. 701-004

REV. 2 (05/94)

Aap brewers use the same parts, except for the tank, body, and legs. Call Tech. Support At (800) 338-2699 for assistance with these items

Troubleshooting

Brewing Problem

Possible Cause

Solution

-Make sure power switch is on

(Brewer lights are not illuminated) -Check power connection. (plug or hard wire

connection)

No power to the brewer

Brew switch will not start brew cycle (no water

is dispensed)

and brew light does not come on,

even when switch is pressed in.

-Check the wall circuit breaker / reset

-Reset the circuit breaker, located on the back of the

brewer. Press and release the white button.

Bad brew switch

-Replace switch.

Bad timer or stop switch. (The

stop switch provides voltage to

the timer.)

-Check for voltage reaching the timer. If voltage is

present, replace timer. If not, replace stop switch.

and brew light does not stay on.

(Light is on only while switch is

pressed in.)

No water reaching the brewer.

Verify by dispensing water from

hot water faucet for several

seconds. Water should flow

freely and steadily.

-Make sure the shut off valve is open.

-Check water line for kinks; replace line if necessary

-Check to see if filter is clogged by changing it.

Brew switch will not start brew cycle (no water

is dispensed)

and brew light does come on.

Bad dispense valve. (Brewer may -Replace the dispense valve

buzz when in brew cycle)

Water filter clogged

(See details in next section)

Short brew levels EVERY BREW

Dispense valve clogged

Timer/s are set too low

Incoming Voltage is too low for

timers to function at proper time

sequences

-Clean and/or replace the dispense valve.

-Advance timers to proper level.

-Reset wall circuit breaker as one side may drop out &

not flag the breaker.

-Call an electrician to find loose connections in the

building

(One or both sides are affected and levels are

consistent)

Water filter clogged.

-Replace water filter

Short brew levels SOME BREWS

(problem is worse during

simultaneous brews)

Weak dispense valve

(may buzz during cycle)

-Replace dispense valve.

(One or Both sides are affected and levels are

erratic)

Water pressure or flow rate is too

low or fluctuates too much to

support a full brew.

-Make sure brewer has a dedicated water line

-Ensure that the shut off valve is open all the way

(Never use needle saddle valves)

(problem is worse during

simultaneous brews)

-Increase the diameter of the water line to the brewer

and or find stable source.

Brewer is not level

-With an accurate level, level the brewer front to back

and left to right by adjusting the feet.

Brew time required to fill dispensers is not

the same for both sides

Timer/s are set too high

Dispenser not empty

-Adjust timers down to appropriate level

High brew levels EVERY BREW

(overfills but eventually does stop)

SOME BREWS

-Empty the dispenser and try again

-Call FETCO Service Dept. to discuss.

(800) 338-2699

Brew basket or filter overflows

Improper dose

-Measure and confirm correct dose

-Make sure only one paper is used

-Adjust thermostat so the water stream measured at

the bottom of the brew basket, 1/3 of the way

through the brew cycle, equals 195 degrees + or - 5

degrees

Weak Coffee

Too many filter papers

Low brew temperature

(Temperature inside the hot

water tank should be set to 205°

F.)

Half batch used incorrectly

-Use smaller brew basket

Grounds not saturated

-Discourage half batch use

Water Softener in use

Degassing - extremely fresh

coffee

-Move brewer water feed to a non-softened source.

-Call FETCO Service Dept. to discuss.

(800) 338-2699

Dispense valve not sealing

properly.

-Clean, rebuild, or replace dispense valve.

Spray head / brew basket drips - MAJOR or

MINOR

one side only

Fill valve not sealing

(Will drip even with power off.)

-See next section - “Brewer won’t stop brewing”, “Bad

or stuck fill valve”.

Spray head / brew basket drips - MAJOR or

MINOR

double brewers - right side only

Brewing Problem

Possible Cause

Solution

Water pressure over 75psi

-Place a water pressure regulator on the line and reduce to

20-75 psi

Brewer won’t stop brewing

(not the same as high brew levels)

Water level probe bad or

encrusted with lime.

(causes brewer to continue filling

hot water tank which will overflow

into the brew baskets)

-Clean lime build up on the probe tip

and/or tank wall. (Holding the probe wire (green) from the

probe end to the body of the brewer should stop the fill if

the probe is bad but the liquid level board is good)

Bad liquid level control board

-Replace the LLC board if grounding the probe end of the

(green) probe wire to the body of brewer does not remove

the voltage at the fill terminal on the LLC board.

-Rebuild or replace the fill valve if no voltage is on the coil

(it is not magnetic) and it still passes water to the tank.

(Disconnect the outlet side to see if it leaks water to the

tank)

Bad or stuck fill valve

Reverse osmosis water system.

(Mineral content is too low for

liquid level control board to

operate properly.)

-Call FETCO Service Department to discuss.

(800) 338-2699.

Incorrect dosage

-Measure and confirm the correct amount of coffee

required

Coffee tastes too strong

Short brew levels

-See “Short brew levels”, above.

Temperature Problem (brewer only)