Curtis GEMSIF30A1000 [5/8] Heating issues
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Curtis GEMSIF30A1000 [5/8] Heating issues

Curtis GEMSIF30A1000 [5/8] Heating issues
Service & Sales
1-800-421-6150
www.wilburcurtis.com
LCD reads “Heating”
LCD reads “Heating”
Verify that the resistance on the Temperature
Sensor is less than 10k ohms with a hot tank
(200+ degrees) If no, verify correct mounting and
that the walls of the tank are free of mineral de-
posits. If yes, bypass the sensor using a jumper
with a 5k ohm resistor. If the LCD reads “ready”
and the unit stops heating, replace the tempera-
ture sensor, if not, replace the UCM.
LCD reads “Ready to Brew”
Check the A.C. side of the SSR for continuity. if
continuity is present, replace the SSR, if no
continuity, replace UCM.
TROUBLESHOOTING INSTRUCTIONS
HEATING ISSUES
Verify 220 volts between L1-L2 on the
power block. If yes, proceed to #2. If no,
verify that the unit is plugged in correctly,
and the panel breaker is turned on.
Verify 220 volts between #2 & #4 on the
Manual Reset Thermostat. If yes, proceed
to #3, if no, reset or replace the Manual
Reset Thermostat.
Verify 220 volts across the Toggle Switch.
If yes, proceed to #4. If no, replace the
toggle switch.
Verify 220 volts across the Heating
Elements. If yes, proceed to #5. If no,
verify 5 VDC on the SSR. If yes, replace the
Solid State Relay, if no, replace the UCM.
Verify 19 ohm across each active Heating
Element, and replace any Heating
Element that reads “OPEN”.
Not heating:
Overheating:
1
4
2
3
5
Is the water turned on?
Yes:
Yes:
No:
Yes:
No:
TANK FILLING ISSUES
Overlling:Not lling:
Verify 120 volts at inlet valve coil
Replace Inlet Valve
Remove Orange wire from the Water
Level Probe. Does the Tank Fill?
Replace Water Level Probe
Replace UCM
Does the tank continue to fill after the
toggle switch has been turned off ?
Yes:
No:
Yes:
No:
Replace Water Inlet Valve
Remove the Orange wire from the Water
Level Probe and connect it to ground.
Does the tank stop lling?
Replace the Water Level Probe
Replace the UCM

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