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airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 7737
Experience:  Furnace, A/C and heat pump specialist.
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My Rheem heat pump when placed on cool with the temp set

Customer Question

My Rheem heat pump when placed on cool with the temp set below the room temp; outside unit comes on for a short period of time, maybe 5-10 seconds and then shuts off, inside unit continues to run. On heat the outside and inside units run until temp is reached, Thermostat indicates Aux heat.
Submitted: 6 months ago.
Category: HVAC
Expert:  airheatman replied 6 months ago.

Since unit will work in heat mode but not cool mode, this indicates we most likely have a bad metering device on the indoor coil creating a restriction in refrigerant flow and shutting down on pressure switches.