Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Heat Pump Cooling Not Working

2»

Comments

  • heatingrabbit
    heatingrabbit Member Posts: 36

    Just found that somehow, the compressor now can start. I can see the amp draw when start and current is stable at ~5A while running.

    However the pipe is not cold yet will verify a bit further after work.

    1000039198.jpg
  • HVACNUT
    HVACNUT Member Posts: 6,921
    https://forum.heatinghelp.com/discussion/comment/1862206#Comment_1862206

    You're pretty much right there. The reading across Run and Start should be roughly the sum of the other 2 readings. Should be 3.5. Actual is 3.7. I like it. 👍

    Try a Hard Start Capacitor/Relay.

  • heatingrabbit
    heatingrabbit Member Posts: 36
    edited August 12

    Now that my compressor is running.

    I compare the running currency of the working unit vs not cooling unit. 6.6A vs 5.9A. Slightly lower indicating the compressor is not working as hard as it should be?

    pic 1.jpg pic 2.jpg

    Opening up the outdoor unit a bit more. Suction side is only slightly cold (not cold enough comparing with working unit). I use my hand to feel the temperature of other lines in the outdoor unit and mark in the picture. The air blown out by the fan is not that warm (comparing with working unit).

    Does this mean the system is working, but not as well as it should be? Indicating low on refrigerant?

    pic 3.jpg
  • 109A_5
    109A_5 Member Posts: 2,547

    With the outdoor unit running, what's going on with the indoor unit (the evaporator and the blower). The "Very Hot" on the compressor output means the compressor is doing something. At this point the refrigerant charge should be verified.

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • Steamhead
    Steamhead Member Posts: 17,920

    @heatingrabbit , time to call a pro.

    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    heatingrabbit
  • heatingrabbit
    heatingrabbit Member Posts: 36
    https://forum.heatinghelp.com/discussion/comment/1862303#Comment_1862303

    I check the manual the unit is using R22 refrigerant, only licensed person can handle it. Plan to call HVAC specialist.

  • 109A_5
    109A_5 Member Posts: 2,547

    I would agree R-22.

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System

Categories