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- Run MasterTemp heater without thermal regulator? - Trouble Free Pool
My thermal regulator remains closed at 120º but seems to start at 125º and is open at 130º Is that "bad enough" to cause a problem? 2 What else should I look for due to backwards plumbing? 3 Can I run the heater without the thermal regulator for a few days until I get a new one in the mail? In the meantime I'm at least running the pump
- Mastertemp 400 Thermal Regulator Corroded | Trouble Free Pool
The thermal regulator was badly corroded and the middle of it pretty much fell apart when I tried to clean it off under running water
- Pentair MasterTemp Heaters - Further Reading - Trouble Free Pool
A thermal regulator and an internal bypass regulate the water flow through the heat exchanger to maintain the correct outlet temperature The heater operator control panel board assembly is on top of the heater
- Mastertemp 400 Thermal Regulator - Trouble Free Pool
Hi all My heater has been cycling on off when the water reaches about 85 degrees I read a few threads on here on how to troubleshoot I originally thought it was the high limit switch, but I replaced it and it was still shutting off I then removed the thermal regulator (see pic) and now
- Mastertemp 200 heater whining sound - Trouble Free Pool
I just replaced my 5 yo heat exchanger because it was leaking At the same time I replaced the bypass valve and the thermal regulator Everything is operating normally except for this annoying whining sound that starts shortly after ignition and stops when the burner shuts off If I run with
- Pentair Mastertemp 400 thermal regulator hole blocked
I have a Mastertemp 400 and it has been giving me issues of starting and running for 20 seconds and then cutting off with the service light then coming on I have had this issue in the past and was able to fix it by replacing the thermal regulator When I pulled the regulator out and tested it
- Fault High Limit - Jandy JXi. Just cant diagnose!
Start with the internal bypass and thermal regulator About $125 00 for both at Wild West Pool Supply View attachment 544392 View attachment 544393 Click to expand After changing out both of my high limits…and still having a high limit fault problem with my JXI 400… it ended up being a bad thermal regulator valve Thanks for posting this!
- Pentair Mastertemp 400HD - Manifold Design Operation - Trouble Free Pool
The thermal regulator acts in a similar way, but is there to allow just enough water into the heat exchanger so as to keep it around 100 degrees so that condensation doesn't form on the outside of the exchanger If either fail, there is too much water bypassing the exchanger, the water coming out of it is too hot, 135 or more, and the HLS opens
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