HEAT PUMP CONDENSATE DRAINS Most heat pumps have the coil and the condensate drain on the "return" side of the blower. This means that the drain is in a negative-pressure cabinet. Since the drain is in a negative-pressure cabinet, it requires a TRAP in order to properly drain. DRAIN TRAP ...

New Heat Pumps Re: Expansion Valve Issue Many new heat pumps manufactured 2014 - 2015 have experienced sluggish or sticking expansion valves. The Issue has been traced back to an additive that Copeland was putting in their scroll compressors. This additive has caused expansion valves (indoor...

Honeywell Thermostat: TH8320R & TH8321R VisionPro Re: THERMOSTAT OVER-COOLS With a Honeywell VisionPro or Prestige thermostat, the most common reason for the thermostat to overcool is Dehumidification. When either thermostat is configured to dehumidify, there is a setup option for "OVER...

Make: All Model or Series: All Type: Add-On Heat Pump & 90% Gas Furnace Problem Description: Heat pump kicking-out on high pressure in heating mode. Observed Symptoms: Suction pressures a little low, head pressure normal in cooling Head pressure climbs above 500 in heating Liquid...

Heat Pump Re: No Heat When a customer reports "No Heat' with a heat pump, that generally indicates a problem with the indoor blower or electric heaters. ► There may be a problem with the heat pump itself, but the auxiliary heaters should cycle on to keep the temperature within 1 degree of...

Heat Pump / Air Conditioner Re: Compressor Not Running The contactor is pulled-in but the compressor is not operating. No Compressor Amperage Equal Suction & Discharge Pressure Qty Possible Causes: 1 Bad Capacitor Internal Overload Open Locked-Up...

Heat Pump: Cooling Re: High Discharge Pressure / High Head Pressure As the system runs in the cooling mode, the discharge pressure exceeds the normal operating pressure. R22 System Normal Head Pressure = 175 - 250 psig High Head Pressure = Above 275 psig R410A System Normal Head...

York Heat Pumps: Heating Re: High Electric Bill When the customers reports an electric bill that is much higher than normal, that typically means that the auxiliary heaters are operating more than normal. ► The blower and auxiliary heaters are typically working normally or the customer would...