Wilbur Curtis GEM-120A - Manual (Page 5)

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PROBLEM: WATER NOT FLOWING FROM SPRAYHEAD.
SOLUTION POSSIBLE CAUSE
Check water level in tank. If water is not flowing into the tank, re-
view steps 1 thru 4, previous page.
Check the continuity between terminals 5B and 4B when the BREW
switch is pressed. If there is no continuity, replace the switch.
Make sure the timer is receiving 110 to 120 volts. You can verify
this by taking a reading with your meter at the end of the YELLOW
wire on terminal 5B of the ON/OFF switch and at terminal 9 of the
timer. When the timer is activated by the brew switch, you should
read 110 to 120 volts across terminals 8 and 9 of the timer. The
RED wire on terminal 8 supplies power to open the dump valve. If
no voltage is present, replace the timer.
If the timer works when the brew switch is pressed, then check the
dump valve using a voltmeter on the terminals. If it shows 110 to
120 volts but no water flows through the valve, clean out the valve
or replace the coil.
11. Water level is too low
in heating tank.
12. Defective brew switch.
13. Defective timer.
14. Burned out dump valve
coil.
PROBLEM: WATER IN TANK DOES NOT GET HOT OR WATER TEMPERATURE TOO LOW
POSSIBLE CAUSE
SOLUTION
10. Defective thermostat. Thermostat may be cutting off before the water temperature reaches
operating temperature. Do not try to reset the thermostat. Replace it.
GEMINI 120A