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Thermostat locked,cant adjust temp settings.

The thermostat is locked, cant adjust temp settings. its a carrier debonair 220.

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Posted on Jan 02, 2017

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james3751
  • 614 Answers

SOURCE: blank thermostat

Check voltage at unit. Also check the 5 amp fuse in the unit. If this unit has a float switch in the drain line check that. Rus

Posted on Dec 03, 2009

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Check voltage at unit. Also check the 5 amp fuse in the unit. If this unit has a float switch in the drain line check that. Rus

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