Heat Pump Doesn’t Seem to Be Working

Patrickoleary

Well-known member
Apr 7, 2019
122
Greensburg,PA
Jandy AE-TI 2000 heat pump. ~100k BTU.

Water temp was 74 today. Air temp 77. Turned heater on this morning around 10. Turned off at 5. Pool temp 75. Obviously, a gas heater will heat a lot faster than a heat pump, but this doesn’t appear to be working at all.

Going to call pool heating guy tomorrow. Any other quick checks I can do to verify it’s not working? The service will be done through a warranty company so any other details I can provide are helpful.

Thanks.
 
Last edited:

Newdude

Well-known member
Jun 16, 2019
1,096
NY
My pentair heat pump did not like mid 70s water. It seemed to struggle to keep up at all and like you said, the return water was warmer but not by much. If the water got to 70 it didnt do a thing. The gas heater shines at warming the pool quickly. Ours are for when the water is moderately warm already.
 

Patrickoleary

Well-known member
Apr 7, 2019
122
Greensburg,PA
My pentair heat pump did not like mid 70s water. It seemed to struggle to keep up at all and like you said, the return water was warmer but not by much. If the water got to 70 it didnt do a thing. The gas heater shines at warming the pool quickly. Ours are for when the water is moderately warm already.
Yeah, the mistake I made was not using the pump to keep the temp at 85 when it was there in July.
 
  • Like
Reactions: Newdude

Patrickoleary

Well-known member
Apr 7, 2019
122
Greensburg,PA
You need to run your pump and HP 24/7 if you want to significantly raise your pool temperature.
I should have mentioned that last week I ran it for three days straight and it raised two degrees. Air temp was 75 during the day and down to low 60s at night. We do run the pump 24/7 already. The HP, I just have never left it on for an extended period of time (3+days).

I'm debating closing it anyhow because the kids are so busy with school and activities.
 

Patrickoleary

Well-known member
Apr 7, 2019
122
Greensburg,PA
What I am getting from the thread though is that this is pretty common. I shouldn't expect a large change in temp unless I run for a significant amount of time, and it's better to run it when the pool water temp is already higher because they are better at maintaining temp than heating significantly quickly.
 

Newdude

Well-known member
Jun 16, 2019
1,096
NY
But Patrick...... your mistake probably saved you $1000 for 6 weeks of not running the pump. You can make a mistake like that at my house anytime you want to stop by.

The cover was key. The two worked awesome together and kept the pool at 80 long past where we felt like swimming.
 
  • Like
Reactions: Patrickoleary