Error code reference
Lennox Air Conditioner Error Code E600
Compressor has been cycled OFF on utility load shedding.
Compressor has been cycled OFF on utility load shedding.
First step from the service manual
Load shedding is activated by applying 24VAC power to the L and C terminals on the outdoor control. Deactivate load shedding to restore normal operation.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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