Question about Honeywell CT87B ROUND HEATING&COOLING MECHANICAL THERMOSTAT - WHITE Heater

1 Answer

Thermostat does not shut off A/C at desired temperature

Intermittent problem.  if I set the thermostat at 78 degrees for the A/C,  frequently the thermostat will not shut A/C down at 78, but has continued as low as 73.

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  • HANK MCNEIL May 11, 2010

    Don't think it is the T87 thermostat but if it is the only thing you can do is replace it. If it's not that, it's gonna take some detective work by someone who knows how it works.

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  • Master
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Sounds like a bad thermostat.

Posted on Jun 01, 2009

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