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Mainsite -> concretesubmarine.com/ FORUM -> Concrete Submerged Concepts, floating tubular concrete structures -> HVAC Specialists: Heat pump that won't defrost
Post Info TOPIC: HVAC Specialists: Heat pump that won't defrost
Clotibrut


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HVAC Specialists: Heat pump that won't defrost
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I have a Trane heat pump that was installed new in July 2021. Since then I've had to call the installers to come out and troubleshoot problems like a fuse blowing when the compressor starts.

Another problem they worked on but didn't correct is the heat pump will not go into a defrost cycle in cold weather. It gets heavy frost on the coils and starts building up ice. Eventually, the system figures out the heat pump isn't working correctly, locks out the h/p, and switches to gas heat.

The defrost control board LED is flashing the code for "All Good". But if I manually initiate a test defrost cycle by shorting two test pins together, absolutely nothing happens.

I really don't trust the original installer because they always seem to have some BS "fix" but never actually fix it. I've ordered a new defrost control board but I'm not very confident that anything will change.

Does anyone have any ideas? Thanks in advance.



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urongamon


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Bypass the iffy dealer/installer. Should be under warranty.

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Blanrimel


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Apologies for reviving a months-old thread, but I stumbled upon this post while searching for similar information. I'm sorry to hear about the issues you've been having with your Trane heat pump, but I'm glad to see that the problem has been resolved with the replacement of the coil-monitoring temperature sensor. In terms of finding a reliable HVAC company, I used to live in Israel, and we had a company called Fenix that was always our go-to for appliance repair. I wonder if we have companies like this in the US? It's frustrating when the original installer doesn't seem to have a handle on the issues and provides temporary fixes that don't actually address the underlying problem. It's good that you were able to find a solution with the replacement of the sensor, but it's always a good idea to have a backup plan in case of future issues.



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