Unit is not defrosting. Had a professional come out, and he replaced the defrost control board and the defrost thermostat. The unit does seem to enter the defrost cycle (fans shut off,
How to Defrost a Comfortline Air Source Heat Pump
How to Defrost a Heat Pump: 7 Steps (with Pictures) - wikiHow
How to Defrost a Heat Pump: 7 Steps (with Pictures) - wikiHow
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AQUARK INVERTER POOL HEAT PUMP, A GOOD HELPER IN QUICK & EFFICIENT DEFROSTING | Aquark
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How to Defrost a Heat Pump: 7 Steps (with Pictures) - wikiHow
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Potential development of air source Heat Pump in the UK
AQUARK INVERTER POOL HEAT PUMP, A GOOD HELPER IN QUICK & EFFICIENT DEFROSTING | Aquark
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