12 hour heat pump run time in NC
A replacement, Carrier, 4ton, h/p was installed 12/21/10. When the heat came on in Nov '11, we noticed it ran a lot. 5,7,10,14,17 hrs @ a time. The joker from Carier said it wasn't unusual for a unit to run 12 hours. Where? Alaska? Surely not NC piedmont.
The outdoor unit stays on. It changes from heat to defrost with the o/d fan sill running. If that fan stops, the airhandler runs for 90 secs then the o/d unit kicks back on. It cycles warm air-cool air -then warm again. If it would just get to 69o and turn off there would be no problem but one of the fans is constantly running, usually, the o/d .
I get irritated and turn the thing off but that doesn't solve the problem, long term. Actually, when I turn it off the house temp rises and will stay the same for 3-4 hours.
17 trips to fix it since 12/26/11. The thermostat, heat strips and blower module have been replaced. Leaks in the ducts sealed. Pressures checked.
With each "fix" the unit works gr8 for a day or two then its back to long run times. A monitor's on the o/d unit since Feb 6th. They said I had to leave it running and I have, until this morning 02/12. Outside its 23o. Set on 69o, it was 66. The unit had been running since 6:30 last night! I turned it off @ 6am. Temp immeniately rose to 68o.
The guys from the company are pleasant. Carrier's been guiding or mis-guiding them.
I've been more than patient but enough is enough! Its been 2 months. My Duke bill would have been out of reach if I hadn't had the unit off for 3 weeks and heated with space heaters, electric blankets and gas logs.
Suggestions are not only welcomed but encouraged. Thanks
Finally!! After 8 months, its fixed!!!!!!
I finally got my heat pump fixed last week!!!!!!
I contacted another HVAC company to look at my unit. Their tech found two nice sized air leaks. One going into the unit. The other coming out of the unit. I've been told that I'm "buttoned up tight". How were these leaks missed by 2 different companies and several techs? I told my install co. about the diagnosis. They fixed both leaks but when they checked the temp of the cold air return it was 6o warmer than the house. They then checked down the trunk and found it was completely separated. When they reattached the two pieces the temp immediately went down. I asked how severed they were and the answer I got was 'a pretty good distance'.
All this time and all the replaced parts and all the service trips that the company ate could have been eliminated if someone had only checked the retrun temp.
Glad its fixed but it still bothers me that I sent Carrier a 3 page letter in June detailing all the problems I've had with my unit and the install company. I have yet, to hear from Carrier. So much for customer service.
btw ...I ended up contacting the BBB to my unit fixed.
Thanks so much to everyone who tried to help.