Question about Pentair Mastertemp Pool & Spa Heater Dual Electronic Ignition 400,000 Btu Lonox Propane 460737
Year 2012, purchased bran new
Shows ignition failure turn off then back on if same check ignitor and gas
Posted on Sep 29, 2017
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Posted on Jan 02, 2017
The heater is trying to light but cannot. Either the igniter is broken or you are not getting any gas to the igniter. Check to make sure your gas valves are on.
Posted on Apr 18, 2011
SOURCE: Pentair Master Temp 400 E05
If you've already changed the thermal regulator then the only other thing it could be is the flue/flame sensor.
It could be just a loose or bad connection so I'd check them first before replacing it.
If you've got a meter then you could disconnect the sensor and check its continuity (should be 3-4M Ohms). If its OK then check the continuity of the wiring between the sensor and board.
Posted on Jun 12, 2011
I have had the same problem with my '400' since it was new. I contacted the manufacturer and got the run around. I have been trying to get this resolved and now, a year and a half later, have decided to buy a different heater. Anyone want to buy a hardly used Pentair 400? email@example.com
Posted on Sep 23, 2013
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