Maintenance
Replacement Procedures
8-47
(Revised 1/02)
Air Heating Element (Electric Units Only)
Installation
(continued)
WARNING
When oven power is turned on, there is high voltage present in
the electrical components compartment.
6. Connect oven to branch circuit and operate oven in Oven mode.
7. Using a clamp-on ammeter, check current flow in one of the wires in each wire
pair A6-A3 (AH1) and A4-A1 (AI-12). Current should be approximately
8.5 amps for the 208V unit, and 10.0 amps for the 240V unit.
8. Shut down oven and install right side cover.
NOTICE
Be careful you don’t bend the air heater element during installation.
Remove old gasket material.
CC20-E (Prior to Serial No. C10129MC)
1. Apply a light coat of anti-seize lubricant to the heater element threads. Install
heater.
2. Install heater element bracket.
3. Install new fiber washer, flat washer, and nut on each end of heater element.
Do not tighten mounting nuts at this time.
4. Check that the two heater elelments are not touching each other and are not
within 1/4-inch of the fan.
5. If heater elements are properly located, tighten mounting nuts. Use a 1-1/16
inch deep socket, 1/2 inch drive.
6. Reconnect wires to all heater element terminals. Make sure they are
connected correctly.
WARNING
When oven power is turned on, there is high voltage present
in the electrical components compartment.
7. Connect oven to the branch circuit and operate oven in Oven mode.
8.
Using a clamp-on ammeter
, check current flow in one of the wires in each wire
pair A1-A2 (Al-11), A2-A3 (AH2), and A4-A5 (AH3). Current should be
approximately 28.0 amps for the 208V unit, 24.3 amps for the 240V unit, and
12.1 amps for the 480V unit.
9. Shut down oven and install back panel.
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