I would need some more information. Freezing is caused by low airflow (dirty filter, evap coil and/or indoor blower), low refrigerant or in rare cases a stuck contactor.
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I ran into a similar problem late last year with an air cooled Heat Pump. I'd check for a temp drop across the lines of the heating liquid line dryer and the TXV. You may find...
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What kind of micron gauges are you guys using? I was using a Fieldpiece SVG2 for about a year now and it is already crapping out on me (it reads 1880 microns when open to the a...
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