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  1. Residential HVAC Forum
    I have recently installed a three zone LG mini split system in my house. I have two ceiling cassettes and one wall unit. The wall unit and one ceiling cassette work great. The third second cassette only blows room temp air when in cooling mode. During the process of trouble shooting the...
  2. General HVAC Discussion
    Hello, I am seeing an error code that is otherwise unlisted on the wireless MRCH1 thermostat, which connects to a ducted Mitsubishi electric unit in the attic. The display just reads "E 27" The second zone for the first floor is run by a Mitsubishi Mr Slim unit, which is working fine. None of...
  3. General HVAC Discussion
    Has anyone encountered mold issues on Mitsubishi Mini Split evaporator blower wheels? Unit with problem is MSYA17NA. Thanks
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