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Heat Pump

AC mode. Suction line picks up 5degree going through 4-way reversing valve.



Too Much??



Low pressure a little high and high pressure a little low.





Harvey
Ramer Mechanical
ramermechanical.com
To learn more about this professional, click here to visit their ad in Find A Contractor.

Comments

  • SpenceSpence Member Posts: 316
    RV

    Way too much. It may be leaking or just stuck. Kill the HV and bang the RV on and off several times with a low voltage signal. No change means it should come out.
  • Harvey RamerHarvey Ramer Member Posts: 1,907
    Heat Pump

    Serviced this unit a while back and didn't catch anything then. One day it cools the house decently. One day it doesn't. I messed with the 4-way a bit but no change.



    Harvey
    Ramer Mechanical
    ramermechanical.com
    To learn more about this professional, click here to visit their ad in Find A Contractor.
  • SpenceSpence Member Posts: 316
    RV Issue

    If it works then doesn't and repeats, we most likely can eliminate the leak. Either the piston is sticking or there is an undesirable on the seat. Before replacing, you could try this: pump down, take out the Schraders, and introduce dry nitrogen up to factory test pressure. Blast it out both sides and repeat. A strong magnet helps, too, as you can pull the piston back and forth.
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