journey 2001 heat pump

[Ron and Patti]

I am having a probiem with my heat pump, I ran it over the weekend and after it was running for a few hour it would click off and the gas heat would come on. With the switch still on electric heat.I went out to inspect the heat pump unit and saw some water dripping from the bottom like the ac was on. I switched the termostat back to gas after a few hours. When I switched back to the heat pump it seemed to work ok. The next night I had the same problem. We keep the termostat set at 70. I opened up the side panel to see if I have access to the pump/basement ac. I dont know how I can pull the unit out without damageing it. Thats if it can even be pulled out at all. Can someone help me out with this. When the heat pump is on the heat works great and then just shuts down and will not kick back on at all at this point. All fuses are ok , just seems like at some point it is over heating and shuts down till it cools down,for a few hours then seems to be ok again. Thanks Ron

[Ron and Patti]

I am having a probiem with my heat pump, I ran it over the weekend and after it was running for a few hour it would click off and the gas heat would come on. With the switch still on electric heat.I went out to inspect the heat pump unit and saw some water dripping from the bottom like the ac was on. I switched the termostat back to gas after a few hours. When I switched back to the heat pump it seemed to work ok. The next night I had the same problem. We keep the termostat set at 70. I opened up the side panel to see if I have access to the pump/basement ac. I dont know how I can pull the unit out without damageing it. Thats if it can even be pulled out at all. Can someone help me out with this. When the heat pump is on the heat works great and then just shuts down and will not kick back on at all at this point. All fuses are ok , just seems like at some point it is over heating and shuts down till it cools down,for a few hours then seems to be ok again. Thanks Ron

[Harry B]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I am having a probiem with my heat pump, I ran it over the weekend and after it was running for a few hour it would click off and the gas heat would come on. With the switch still on electric heat.I went out to inspect the heat pump unit and saw some water dripping from the bottom like the ac was on. I switched the termostat back to gas after a few hours. When I switched back to the heat pump it seemed to work ok. The next night I had the same problem. We keep the termostat set at 70. I opened up the side panel to see if I have access to the pump/basement ac. </div></BLOCKQUOTE>

Ron, If the temperatures outside drop below 40 degrees the heat pump will stop working and switch to the gas furnace automatically. You did not specify what the outdoor temperature is but pherhaps this is your senario. If not pherhaps others have additional suggestions

[AFChap]

Ron

Yes, the unit can be pulled after disconnecting some duct connections and wiring. But that would not tell you anything at all unless you are a trained service person with appropriate test equipment.

I agree with Harry ...it sounds like the unit is doing as it is designed to do and going to LP furnace operation. The temp at which it will do that varies on mine anywhere from about 34 to 40 degrees depending on the humidity. If you had water dripping out the bottom, you apparently did have higher humidity. I have noted water dripping from my unit when in heat pump mode of a few rare occasions when the humidity was high.

[DancinCampers]

I hope the following info from the Svc Manual comes out ok. I took it out of a PDF file.

Heat Pump Example To Bring On Gas Furnace As Backup Heat

Setpoint Indoor Temp. Operation
70 70+ No functions occur
\\\ 69 Heat Pump turns on (Primary heat source)
71 Heat Pump turns off (Thermostat satisfied)
69 Heat Pump turns on
65 Gas Furnace turns on, Heat Pump turns off (Heat Pump not able to satisfy Thermostat) (First strike for backup heat counter)
71 Gas Furnace turns off (Thermostat satisfied)
69 Heat Pump turns on
65 Gas Furnace turns on, Heat Pump turns off (Heat Pump is again unable to satisfy Thermostat), (Backup heat counter reaches 3rd strike and Heat Pump is locked out for 2 hours), backup heat counter is reset if Heat
Pump is running for more than 20 minutes and does not call for backup heat
71 Gas Furnace turns off (Thermostat satisfied)
69 Gas Furnace turns off (Becomes Primary heat source)
71 Gas Furnace turns off (Thermostat Satisfied)
\\\ After 2 hour lockout
69 Heat Pump turns on (Resumes as Primary heat source)
65 Gas Furnace turns on, Heat Pump turns off (Becomes Primary heat source) (Heat Pump is locked out for another 2 hours)
71 Gas Furnace turns off (Thermostat Satisfied)
\\\ After 2 hour lockout
69 Heat Pump turns on (Resumes as Primary heat source)
71 Heat Pump turns off (Thermostat Satisfied) (Backup heat counter is
reset any time Heat Pump satisfies thermostat setpoint and does not need Gas Furnace)
The word "DIFF"� will display on LCD when backup heat is operating and the heat pump is locked out. There is a 30 second delay between
Stage 1 and Stage 2. There is also a 3 minute anti-short cycle delay time for cooling.

The manual indicates heat pump will shut off between 25-40 deg F.

The water you see is frost melting off the outside coil. This is normal during heat pump operation & will depend of humidity.

There is a freeze thermister located on the outside coil, it opens at 18 deg +/- 3 deg, and closes at 38 deg +/- 3 deg, actual coil temp.

[Ron and Patti]

Thank you all, the temps outside were about 35 degrees that weekend. Now I understsand why the heat pump shut down. Its a relief to know that it nothing more than the cold weather. Thanks again Ron