Question about Pentair Minimax NT Heater
If none of the above don't work, put a brick on top of the vent, covering only about 1" of the vent, then try firing it up. if it works, then you aren't getting enough oxygen at the ignitor.
Posted on Aug 08, 2010
Many things can cause this, including the ignitor as you mentioned. You can ohm out the ignitor, and that should tell you if the ignitor is capable of heating up. But this ignitor also has a built in flame sensor in it. That part of it can also be bad. If the heater has worked before, then i would probably say it is not the gas pressure. More likely clogged orifice or bad ignitor. You will not be able to check the pressures at the gas valve without a manometer.
Posted on May 20, 2010
You may have low gas flow. This is tough to check but if you have a manometer you can check gas pre on the back side of the gas valve with heater off and then while it is trying to start. If you don't have a large enough meter or gas line this will often be the problem and give you the gas smell since it will feed gas but not enough to light.Good luck.
Posted on Apr 25, 2010
YOU CAN PULL THE BURNER ORFICES WITHOUT PULLING THE BURNER TRAY. FLEX UP THE SHEET METAL TRAY AND PULL THE ORFICES AND CLEAN WITH #12 SOLID WIRE. SPIDER WEBS ARE BLOCKING ONE OR MORE ORFICES. IF ITS A MIDDLE ONE OVER THE HOT SURFACE IGNITER IS PLUGGED THIS IS A TYPICAL SYMPTOM. GOOD LUCK.
Posted on May 18, 2010
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Posted on Jan 02, 2017
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