Newco GKDF-2, Installation, Operation And Service Manual

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5
TROUBLE SHOOTING GUIDE
SYMPTOM POSSIBLE CAUSE WHAT TO CHECK REMEDY
IRREGULAR YIELD
1. Not siphoning properly.
Steps 2 thru 8 refer to
Automatic Models
2. Timer.
3. Fluctuating water pressure.
4. Solenoid valve.
5. Flow washer.
6. Flow control screen.
7. Faucet coil is leaking.
8. Strainer.
1. Refer to "DRIPPING", Step 1.
2. Timer consistency. Time several
brew cycles.
3. Water pressure.
4. Refer to "DRIPPING", Step 2.
5. Possible lime build up in flow
control.
6. Screen built into flow control.
7. Refer to "DRIPPING", Step 3.
8. Water pressure at output.
1. Refer to "DRIPPING", Step 1.
2. If times are irregular, replace timer.
3. If pressure fluctuates 10-20 PSI during
operation of brew cycle, add a pressure
regulator to inlet side of brewer, set to
lowest pressure level registered. Adjust
timer to yield correct water level.
4. Refer to "DRIPPING", Step 2.
5. Replace flow washer and clean lime
from flow control.
6. Replace or clean screen. Clean lime from
flow control.
7. Refer to "DRIPPING", Step 3.
8. If pressure is low, clean or replace
strainer.
WATER KEEPS RUNNING
(AUTOMATIC MODELS)
1. Solenoid valve.
2. Start switch.
3. Timer
1. Refer to "DRIPPING", Step 1.
2. Remove wires from switch and
check continuity.
3. Solid state timers are not
repairable. If timer will not shut
off, replace timer.
1. Refer to "DRIPPING", Step 1.
2. If start switch does not make and break
contact, switch should be replaced.
3. Replace timer.
CAN'T START BREW CYCLE
(AUTOMATIC MODELS)
1. No water.
2. No power.
3. ON/OFF switch.
4. Brew start switch.
5. Timer or timer harness.
6. Solenoid valve.
1. Incoming water lines & water shut
off valve.
2. Fuse or circuit breaker.
Power cord and plug connections.
3. Switch continuity.
(Normally open.)
4. Switch continuity.
(Normally closed.)
5. Wire leads to solenoid and
black 3-pin connector.
6. (A) Voltage at solenoid valve
terminals. Start a brew cycle and
check for 120 volts AC.
(B) If voltage is present at
terminals, check for water at line
pressure on the inlet side of
solenoid valve.
1. Be sure water shut off is open.
2. Replace or reset circuit protector
3. If ON/OFF switch does not make and
break contact, replace ON/OFF switch.
4. If brew start switch does not make and
break contact, replace brew start switch.
5. Make sure these connections are tight. If
so, and all else checks out OK, replace
timer.
6. (A) If voltage is not present at terminals,
refer to steps 2 through 5.
(B) If voltage is present at terminals and
water at line pressure is present on the
inlet side of the solenoid, but not present
on the outgoing side, replace solenoid.
SOLENOID CHATTER OR
HOWLING
(AUTOMATIC MODELS)
1. Brewer connected to hot water
line.
2. Vibration.
3. High water pressure.
4. Water hammer.
5. 60 cycle vibration.
1. Incoming water line.
2. If brewer is on a metal stand or
counter, neither the bottom pan
nor copper tubing to the brewer
should touch the counter.
3. Water pressure on incoming line.
4. Incoming plumbing.
5. Nut on top of solenoid.
1. Brewer should be connected to cold
water line.
2. Adjust as necessary.
3. If water pressure is over 90 PSI install a
pressure regulator and adjust to 50 PSI.
4. This not the fault of the brewer and can
usually be corrected by rearranging some
plumbing or adding an air chamber to
the incoming water line.
5. Nut should be tight. Tighten as required.