7
TROUBLE SHOOTING GUIDE
SYMPTOM POSSIBLE
CAUSE
WHAT TO
CHECK
REMEDY
IRREGULAR YIELD
1. Not siphoning properly.
2. Timer.
3. Fluctuating water pressure.
4. Solenoid valve.
5. PDS valve
1. Refer to "DRIPPING", Step 1.
2. Timer consistency. Time several
brew cycles.
3. Water pressure.
4. Refer to "DRIPPING", Step 2.
5. Possible defective flow
control.
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 PDS valve
.
DRY COFFEE REMAINING
IN BREW BASKET AFTER
BREWING
1. Filters.
2. Not siphoning properly.
3. Improper loading of the brew
basket.
1. Are correct filters being used.
2. Refer to "DRIPPING", Step 1.
3. Filter and coffee in brew basket.
1. Insert correct filter.
2. Refer to "DRIPPING", Step 1.
3. Filter should be centered in the brew
basket and coffee bed should be level.
WEAK COFFEE
1. Filters.
2. Not siphoning properly.
3. Improper loading of brew basket.
1. Are correct filters being used.
2. Refer to "DRIPPING", Step 1.
3. Filter and coffee in brew basket.
1. Insert correct filter.
2. Refer to "DRIPPING", Step 1.
3. Filter should be centered in brew basket
and coffee bed should be level.
SOLENOID CHATTER OR
HOWLING
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 is 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.
COLD WARMER STATION
1. Warmer - defective.
2. Warmer ON/OFF Switch.
3. Bad harness.
1. Voltage at warmer terminals
should be 120 volts AC.
2. If voltage is not present on warmer
terminals, check continuity of
switch.
3. Check connections between
harness and switch, and between
switch and warmer.
1. If voltage is present on terminals, but
warmer will not heat, replace warmer.
2. If switch does not make and break
continuity when turned off, replace
switch.
3. All connections should be tight.
