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Potentiometer Test

  1. Using test light, test for continuity between potentiometer connector circuit 57 and switch bracket. If no continuity exists, replace potentiometer.
  2. Check continuity between circuits 220 and 57 of the potentiometer connector while rotating the switch from "OFF" to "ON".
  3. Check continuity between circuits 217 and 57 while rotating switch from "OFF" to maximum time delay. Resistance for these tests should gradually increase from 2500/4500 ohms at "OFF," to 140/260K ohms at maximum time delay.
  4. If potentiometer fails any of the preceding tests, replace the potentiometer assembly.
    NOTE: If any part of the control switch test is unsatisfactory, replace potentiometer.
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