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Before you call your Lennox Dealer

System not functioning properly?

The following checklist is provided to help you isolate the problem, prior to calling your Lennox dealer for service:

  1. Check to see that electrical disconnect switches are ON.
  2. Make sure the thermostat temperature selector is properly set.
  3. Make sure the thermostat system switch is in the ON position.
  4. Replace any blown fuses or reset “tripped” circuit breakers.
  5. Make sure unit access panels are in place.
  6. Clean or replace air filter.

If repairs are required, contact us.

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