Thursday, 21 April 2022

heat pump short cycle

At a recent inspection I was testing the heat pump in heat mode. On the initial startup the unit short cycled 4 or 5 times so I shut it off and waited a while. The short cycle events lasted maybe 30 seconds each. I tried a second time and it did it 2 more times and then stayed on like you would expect. From then on it functioned normally during the remainder of the inspection and produced adequate heat. Just to be sure I wrote it up describing the condition and recommended evaluation by an HVAC tech. So, is this short cycling surely an indication of a potential problem or could it be part of normal functions?

source https://www.inspectorsjournal.com/topic/19101-heat-pump-short-cycle/?do=findComment&comment=175661

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