RCA Mechanical Temperature Control Failure

RCA freezer with mechanical dial will not turn on; turning the dial has no effect and there is no click.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Broken thermostat shaft, Internal thermostat contacts failed open, Loose wiring at thermostat terminals

How to Fix / Troubleshooting

Safety first: Unplug the freezer before accessing the control housing.

Steps:

  • 1. Remove control knob: Pull the knob straight off the shaft.
  • 2. Access thermostat: Remove screws holding the control housing and gently pull it down to expose the thermostat.
  • 3. Inspect shaft: If the shaft is broken or spins freely without clicking, replace the thermostat.
  • 4. Test continuity: Disconnect wires and check continuity across the thermostat terminals while turning the shaft. If it never closes, it is defective.
  • 5. Replace thermostat: Install an RCA-compatible thermostat, routing the sensing bulb as originally installed.
  • 6. Reassemble and test: Reinstall the housing and knob, plug in, and verify the unit starts when the dial is turned on.

Note: Label wires before removal to ensure correct reconnection.

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Repair Difficulty

Medium 3/5

Required Part

Temperature Control Thermostat
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