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54
THE IMPINGEMENT CIRCUIT
Heater Element (Figure 56)
Sheathed-style/Calrod heaters. Attached to the
same cartridge, Heaters A and B can be tested
independently of one another.
To replace a defective heater:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
2. Remove Right Side Panel.
3.
Disconnect Wiring Harness from heaters.
4. Remove Insulation Shield.
5. Pull back insulation where necessary.
6. Replace defective heater cartridge with
P/N HHB-8099.
a. Tighten flange nut
b. Reconnect Wiring Harness
c. Tighten jam nut
CAUTION: An over-tightened flange nut
may cause heater failure. To prevent heater
failure, hold a wrench to the flange nut to keep it
in place when tightening the jam nut. This ensures
the jam nut tightens to the flange nut, rather than
the flange nut tightening mor
e than it should.
7. Reset insulation.
NUMBER
P
ART PART NUMBER
75
Nut (Jam) – Heater Element (x4) 102963
76
Nut (Flange) – Heater Element (x4) 100903
77
Heater Insulation Shield HHB-8097
78
Screw – Heater Element (x6) 101688
79
Heater Element HHB-8099
: Removing the Heater Element
75
76
77
78
79