Timer / Clock Testing:
In order to test the timer/clock on your electric range, the following steps should be taken:
- Before repairs or testing can begin you must disconnect the electricity at the fuse panel, at the circuit breaker panel, or by pulling the plug. Make sure the power is off before proceeding. A jolt from 220 volts can be fatal, use caution!
- In order to gain access to the timer/clock, first move the range away from the wall and remove the back cover panel by undoing the retaining screws. This will expose the back of the timer/clock. Note: there are many styles of ranges. If this does not describe your range, refer to your owner's manual for detailed access instructions.
- In some ranges, you will also require access to the front of the timer clock. This usually requires removal of a front glass panel and it's retaining trim.
- To test the timer/clock, set your VOM to the ohmmeter function and set the range to R x 1. Some models of range have a fuse in the clock circuit. Ensure fuse continuity by touching a test lead to each terminal of the fuse. Now find the clock motor leads, label them and remove them from the circuit. Place a test lead on each clock motor wire; there should be continuity. If not, replace the clock.
- In some range models, the clock is used to control the timed-bake and/or the self-clean cycles. To check these functions, first remove the wires from the switch terminals (label them first). Now refer to your wiring diagram for the correct terminals to test. Some models have one switch, but others have two sets of switches. Test for continuity by placing your test leads on each terminal as shown in your wiring diagram. Test for the continuity of the switch contacts when the start and stop knobs of the clock (of some models) are pushed in and turned, and when the knobs pop back out. All these tests should show continuity. If not, the timer/clock is defective and should be replaced.
- To remove the defective timer/clock, consult your owner's manual for details. On a typical analog timer/clock, the clock knobs must be removed by pulling them off the stems. Then the clock unit can be removed by releasing the retaining clips (or by undoing the retaining screws or nuts).
- Transfer the wires from the old clock unit to the new, making sure the wires are on the correct terminals according to your wiring diagram. Now reassemble and test.
REMEMBER YOU ARE WORKING WITH 220 VOLTS - USE EXTREME CAUTION!!!