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Old 03-06-2020, 07:41 AM   #1
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Heat pump


My heat pump is malfunctioning. When in cool mode it will blow cold for a while but then get warmer. If I turn it off for a moment and then back on it will blow cold again
What might be wrong with it? A technician added refridgerant to it in january.
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Old 03-06-2020, 07:59 AM   #2
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Re: Heat pump


When the tech added refrigerant, where did he find the leak to be located at?
Refrigerant isn’t consumed during equipment operation. So if the unit was low then there’s a leak to be found.
It’s probably a problem with the heat pump refrigerant circuit, and the warmth you feel is the auxiliary heat staging in.
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Old 03-06-2020, 09:54 AM   #3
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Re: Heat pump


He said there was a leak but that it probably in the coil and that it couldnt be repaired on my unit. Could being low on refrigerant cause that type of behavior? I am worried about having to replace the entire unit if it has a leak that cant be repaired. Or are you saying the switch is likely what is causing the behavior and that could be fixed without replacing the whole thing.
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Old 03-06-2020, 10:58 AM   #4
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Re: Heat pump


It's always possible to repair refrigerant leaks, just a question of how much money you want to spend on a unit.
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I am not in the business of any trade I give advice on. I have non-professional hvac experience + good knowledge of theory. Attempt repairs at your own risk. Never jump out safeties - especially pressure switches - on a furnace for testing with fuel supply on; use a meter. Do not troubleshoot with live line voltage present unless there's no alternative.
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Old 03-06-2020, 03:00 PM   #5
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Re: Heat pump


Sounds like you may have had a sales tech, someone that is payed to push new equipment.
Depending on how large the leak is the unit could be low on charge again.
How old is this unit? What refrigerant does it use?
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