User's Manual

Troubleshooting
3A2824B 13
Troubleshooting
Repair
Before Beginning Repair
PROBLEM CAUSE SOLUTION
No heat and heater indicator light is
off.
Heater power off or circuit breaker
tripped.
Turn heater power on or reset circuit
breaker.
Bad thermostat (17). With power on, check for continuity
on/off at clicks when turning the
heater control knob. To replace ther-
mostat, see page 16.
Bad overtemperature sensor (19).
This is a high temperature limit fuse
and must be replaced if blown.
With power on, check for continuity at
overtemperature sensor. To replace
sensor, see page 15.
No heat but heater indicator light is
on.
Bad heater cartridge (20). With power OFF, check for continuity
at heater cartridge connections which
should be 29-36 ohms.
Heat but heater indicator light is off. Bad light. Check connections. Replace lamp.
Repairing this equipment requires access to parts
which may cause electric shock or other serious injury
if work is not performed properly. Have a qualified
electrician connect power and ground to main power
switch terminals. Be sure to shut off all power to the
equipment before repairing.
1. Flush if necessary.
2. Shut off all power to equipment.
3. Perform Pressure Relief Procedure, page 11.