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Thread: ACZEM4H4R09 AIR-CON Mini-split Heat function stopped

  1. #1
    Join Date
    Oct 2017
    Location
    California
    Posts
    15

    Default ACZEM4H4R09 AIR-CON Mini-split Heat function stopped

    Model Number: ACZEM4H4R09
    Brand: other
    Age: 1-5 years

    I have a minisplit heat pump (air-con-09) installed by profesional licensed HVAC guy that has worked for 2 years now flawlessly. When using the remote on A/C function louver opens up, air blows, compressor outside turns on and in a minute, cold air blows out the inside unit. When using the remote and setting mode to heat, nothing happens. Inside unit power light is on and lover is open but no fan, no heat and outside compresor stays off. Any idea what could cause this to happen?
    Stephen

  2. #2
    Join Date
    Oct 2004
    Location
    Canada
    Posts
    1,283

    Arrow Service manual

    I'm afraid I am not familiar with the make or model. I did however find a service manual for it online. Hopefully it will help you to diagnose it.

    http://flnac.com/pdfs/aircon/aircon-...ice-manual.pdf

    Dan O.

  3. #3
    Join Date
    Oct 2017
    Location
    California
    Posts
    15

    Default

    Dan,

    I think they buy from Midea and I have the maual, thinking of getting the optional wired in thermostat as a test.

    Stephen

  4. #4
    Join Date
    Oct 2017
    Location
    California
    Posts
    15

    Default

    I had a professional HVAC guy come out. It turns out that the air filters for the inside unit were clogged. He took apart the inside unit and cleaned the filters. Heat function has been restored, not sure what sensor or device shut down the heat option. I haven't been invoiced yet so I don't know what it will cost me

  5. #5
    Join Date
    Oct 2004
    Location
    Canada
    Posts
    1,283

    Thumbs up

    Thanks for the followup.

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