Pentair mastertemp 400 is coming on as soon pool pump start. how to find out if is control board or other devices faulty. i stop it running by switch off heater on heater display. i lost whole tank of propane. I though we used it all after we refile the tank, realize heater come up as soon as pool turn, this when i turn of heater. thanks for any help
Pentair mastertemp 400
- Thread starter eskandari_n1
- Start date
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Which system?
Sounds like the 2-wire heater control is shorted. Could be a bad relay in the automation, bad relay driver, or shorted wire.
Read Pentair MasterTemp Heaters - Further Reading
Tradegrade Pentair 520545 Easytouch 8 Function Panel - Pool & Spa Combo W/ Ic40 Salt Cell
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Read Pentair Automation Systems - Further Reading
A 2-wire cable connects the gas heater Fireman's switch to the heater relay on the PCB. The heater relay contacts can be welded shut from overcurrent and not open to turn the heater off.
You can check the relay using a multimeter with the wires disconnected and the heater off. The relay is bad if you have continuity with the heat off.
Also, check the relay driver as described in the linked Wiki.
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Did you click on the link in post #6? There is a picture there.
Show us a picture of your heater connection.
please see attached.
Attachments
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
two black wire?
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
You need to open up the panels and follow the electrical wires to the box inside.
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Jul 21, 2013
- 65,416
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60