Fetco CBS-61H User Manual - page 19
19
Brewing Problem
Possible Cause
Solution
Spray head / brew basket drips
either side or both
MAJOR
Cracked dispense tube/s
(This problem starts out minor but
gets steadily worse)
-Replace both dispense tubes even if other side is not
dripping
Fill valve not sealing
(Will drip even with power off.)
-See next section - “Brewer won’t stop brewing”, “Bad or
stuck fill valve”.
Brewer won’t stop brewing
Dispense tube cracked
-See “sprayhead drips MAJOR” above
(not same as high brew levels)
Mechanical binding
(brew handle stays down / brew light
turns off at normal time)
-Re-align the brew handle / brass sprayhead tower / and
dispense tube into a straight line by moving brass tower
Water pressure over 75psi
-Place a water pressure regulator on the line and reduce to
20-75 psi
Dispense tube drive screw off. A
2.5” screw that connects the handle
to the dispense tube at the brass
sprayhead tower.
(handle returns up and brew lamp
turns off but brewing continues)
-Ensure that the drive screw is straight (can be
straightened by hand while still in the brew handle) and
reconnect to the dispense tube. The flange that the drive
screw engages MUST be held flat against the brass
sprayhead tower, without being able to back out.
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.
Bad or stuck fill valve
-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)
Coffee tastes too strong
Incorrect dosage
-Measure and confirm the correct amount of coffee
required
Short brew levels
-See “Short brew levels”, above.
Temperature Problem (brewer
only)
Possible Cause
Solution
See also LUXUS problems
Brew water is cold / not hot enough,
ready light is OFF.
(Before proceeding, make sure water
tank refills when water is dispensed.
The brewer will not heat unless the
tank is full.)
No power to brewer.
-Make sure power switch is on.
-Reset machine circuit breaker.
-Check power connection. (plug or hard wire connection).
-Check building circuit breaker. (Always reset breaker by
switching off, then on.)
Defective liquid level control board.
(No power to thermostat).
-With power on, and water tank full, check LLC board for
120 volts on brown wire and neutral. Replace LLC board if
there is no voltage.
Bad connections on mercury relay.
(No power to heaters).
-Check relay for burned or loose connections. Replace
with high temperature connectors if necessary.
Defective mercury relay.
(No power to heaters).
-Check input and output voltages on relay. 120 volts on
blue wire (input) but no voltage out to heaters indicates a
bad relay.
Bad heating element/s.
-Check amperage draw on heater wires. 0 amps = bad
heater.
Brew water is cold / not hot enough,
ready light is ON.
Bad Thermostat
(the thermostat believes that it is at
set temperature)
-Replace the thermostat and or thermal probe. It’s not
possible to trouble shoot the probe.
Low brew temperature setting on
thermostat
-See “Low brew temperature” under “Weak Coffee”
section.
Slow to recover temperature
Brewers with more than one heater
can have just one fail
-Check amperage draw on heater wires. 0 amps = bad
heater.
(Ready light takes along time to come
back on after brewing.)
Hot water tank limed up
-Remove access cover to the hot water tank and inspect
for lime. Remove the brewer for shop de-liming if build up
is thick.
Boiling
Thermostat set too high for altitude
(Denver etc.)
-Reduce temperature setting to 3 degrees below boiling at
your altitude
Defective thermostat
-Replace the thermostat and or thermal probe. It’s not
possible to trouble shoot the probe.