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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have the mwm12y1j and it does seem to cool without

Customer Question

I have the mwm12y1j and it does seem to cool without switching over to 'H3' and the outside fan and coils piece never seems to come on...the remote indicates the cooling mode but something does seem right...what am I missing?
Submitted: 10 months ago.
Category: HVAC
Expert:  Webb-Guy replied 10 months ago.

Are you saying you have an H3 error?

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