Check for power to unit by unplugging and plug lamp into outlet to see if you have power. If running it is possible it is stuck in defrost mode if you can locate the defrost timer take screwdriver and advance timing knob until you hear click and compressor should start. If this works you will have to replace timer and probably heaters and thermostat. The next worse problem is bad compressor.
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Check for power to unit by unplugging and plug lamp into outlet to see if you have power. If running it is possible it is stuck in defrost mode if you can locate the defrost timer take screwdriver and advance timing knob until you hear click and compressor should start. If this works you will have to replace timer and probably heaters and thermostat. The next worse problem is bad compressor.