Troubleshooting
311075R 37
No heat, and heater indicator light
is off.
Heater Power shut off, or circuit
breaker tripped.
Cycle Heater Power off ,
then on to reset circuit
breaker.
Bad thermostat. With power on, check for continu-
ity at clicks of heater control knob.
To replace thermostat, see
311210.
Bad overtemperature sensor (this
is a high temperature limit fuse
and must be replaced if blown).
With power on, check for continu-
ity at overtemperature sensor. To
replace sensor, see 311210.
Loose heater cable connections. Check connections at Heater
Power switch. See F
IG. 12, page
47.
No heat, but heater indicator light
is on.
Bad heater cartridge. Check for continuity at heater car-
tridge connections: 16-18.6 ohms
for 120 V, 64-75 ohms for 240 V.
Heater on one side shuts off early
or continuously during recircula-
tion.
Y-strainer is plugged on that side. Clean or replace strainer, page
28.
Fluid inlet valve (52) closed. Open valve.
PROBLEM CAUSE SOLUTION
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