Heater stays on for 45 min- 1hour


Old 12-23-05, 05:20 AM
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Heater stays on for 45 min- 1hour

Is this a thermostat issue? I have tried changing the cycles. This is a mercury thermostat that was installed with the system about 5 years ago. The heat will not come on for 2-3 hours, and then when it does, it stays on for 45min - an hour. Obviously not comfortable. If it is thermostat, then why wouldn't we have had this issue with our AC?

Any suggestions? Thanks!
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Old 12-23-05, 06:17 PM
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Find your manual. Look up heat anticipator setting. If you cant find it post again and Ill try and help. Also, where is the tstat located? Does the sun hit it? Any other variables? Look around for vents, drafts and other things that could influence the temp reading.

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