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Heater!!! Unit acts like its heating but there is no hot air. Fan turns on, heat symbol is showing on the remote, but no heat

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I am experiencing a similar problem with my Mitsubishi slimline MSH09TW unit; about 4 years old; It use to give us very hot air now it is giving some what hot air; northeastern USA current temperature about 15F. You think frigid weather in Cranbury NJ could be responsible or some thing else is going on. Please help me if you have some time and knowledge about Mitsubishi heat pumps.\015\012\015\012Sincerely, \015\012DSS
Thinking of purchasing, I browsed the mitsubishi slim web-site, and noticed they tout the A/C features. TV advertisements lead us to believe the units operate as regular ductwork heat exchangers that include a heating unit built into the exchanger. That does not seem to be the case as they suggest hooking the unit to your existing gas or electric heating unit, and also hook you up to purchase heating units.

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Heater!!! Unit acts like its heating but there is no hot air. Fan turns on, heat symbol is showing on the remote, but no heat

I am experiencing a similar problem with my Mitsubishi slimline MSH09TW unit; about 4 years old; It use to give us very hot air now it is giving some what hot air; northeastern USA current temperature about 15F. You think frigid weather in Cranbury N ... Mitsubishi MS12TN Air Conditioner

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0.584.004. FCC ID is: QFA-FRC584001 that is all I have to go off. My fireplace remote won't work and I can't use the fireplace to heat my home unless I turn it on and off constantly. Otherwise it is way too hot or freezing

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