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Old 11-18-2008, 09:12 AM   #1
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T-Stat trouble


Hi Everyone,

We have a heat pump/air handler system in our condo. Our probelm is when we set the T-Stat at 68 the fan is not going off when it reaches temp. It will stay on forever (we tested it). The Heat pump will shut down, but the fan remains on.

Now the wierd part. If we manually reset the temp on the T-Stat to 65, the fan will go off as long as the temp is above 65.

Is the T-Stats temp sensor going? I think the fan relay is working and the heat pump and fan seem to work as well.

Should I replace the T-Stat?

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Old 11-18-2008, 10:12 AM   #2
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T-Stat trouble


What kind of stat is it? Do you have a programmable "Fan ON" cycle in your existing stat.? Did you make sure your fan-auto switch is in the auto position.?

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Old 11-18-2008, 12:48 PM   #3
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T-Stat trouble


Hi,

It is a RiteTemp 8010. It is not programable and the fan is on Auto.
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Old 11-18-2008, 01:46 PM   #4
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T-Stat trouble


Carefully pull the cover off and see if you have 24VAC across the G and C terminals when this happens. If so, it might indicate the tstat is bad. Then see if your volts go to 0 when you reset the temp to 65.

Let us know what you find.
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Old 11-18-2008, 03:00 PM   #5
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T-Stat trouble


Quote:
Originally Posted by dac122 View Post
Carefully pull the cover off and see if you have 24VAC across the G and C terminals when this happens. If so, it might indicate the tstat is bad. Then see if your volts go to 0 when you reset the temp to 65.

Let us know what you find.

Hey dec, you ever consider maybe the site should offer loaner meters? LOL
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Old 11-18-2008, 04:41 PM   #6
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T-Stat trouble


check what terminals the wires are going to at the tstat make sure y is going to the Y terminal and not W or E or aux
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Old 11-18-2008, 04:53 PM   #7
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T-Stat trouble


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Originally Posted by hvaclover View Post
Hey dec, you ever consider maybe the site should offer loaner meters? LOL
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Old 11-18-2008, 04:57 PM   #8
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T-Stat trouble


Quote:
Originally Posted by kennzz05 View Post
check what terminals the wires are going to at the tstat make sure y is going to the Y terminal and not W or E or aux
Interesting thought...

Rickl, did it ever work correctly, or is this something new?

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