Lennox heat pump heat problem's

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Old 11-12-13, 11:36 AM
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Lennox heat pump heat problem's

Hello,

I have a lennox heat pump m/n hp29-311-1P, s/n 58965 14325. During this spring I noticed that the a/c would work but the heat would blow cool air. I just kept using the a/c through the summer. In the past couple of weeks I needed the heat but noticed when I turned it on, the first few times it kicked on that day, the heat worked. After those first few times of blowing warm air, it went back to blowing cool air so I stopped using it. Everything outside seems to run. That first day I felt of the large line and noticed that it was hot, but after that it stays cold now even with the heating turned on. From what I understand it could be the reversing valve but not sure. Thank's in advance for any help.

Thank's Alot
Jamie
 
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Old 11-12-13, 06:17 PM
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Verify that you do not have 24VAC between O and C when a heating demand is present.

24 volts to O will put the reversing valve in the cooling position.
 
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Old 11-14-13, 02:52 PM
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Lennox heat pump heat problem's

Hey thanks for the quick reply. I checked it and it didn't show 24 volt's, but I couldn't get back on here and let you know because my internet has been out. As of right now the heat is working again but I haven't had it on long yet. I will let you know if it is still working tomorrow. Thank's again for the reply.

Jamie
 
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