Temperature Problem


Old 11-25-02, 11:58 AM
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Unhappy Temperature Problem

Our central air gas furnace appears to work fine in moderately cold climates (above 32 degrees). When the temperature outside our home dips below 32 degreess, the furnace shuts down and needs to be turned off and then on again to get restarted. We have an old "dial" thermostat.

1. Do we need a new thermostat?
2. What is likely causing our heater to shut down in colder temperatures?
3. What should we do to fix the problem?

Thanks to all in advance.
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Old 11-25-02, 02:05 PM
Jarredsdad's Avatar
Join Date: Oct 2002
Location: Troy, VA
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I'm just going to throw this out there.

I had a couple calls last winter with the same (on the surface) problem. Everything worked fine until it got real cold.

What I found was that the gas pressure was very close to minimum, everyone in the sub-division had gas heat and most had gas fireplaces.

What was happening was that when the demand for gas was great the pressure would drop below minimum and the unit would go off. A call to the gas company to adjust the regulator did the trick.

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