Question about Pentair Minimax Ch 250,000 Btu Natural Gas Pool Heater Millivolt Ignition

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The unit's pilot is lit, but will not fire up. I saw a technician do some type of bypass to get the unit to fire up, but did not see what wires he worked with. How do you jump past the control board to fire up the unit?

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1 Answer

Intertherm furnace M1BG wont fire


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Under the gas valve is a removable panel. On models of that era there should also be a second panel behind the first. remove both.

the pilot light should be clearly visible.

If no pilot, turn the gas valve to OFF. wait 60 seconds. locate the tubes from the gas valve to the pilot location. turn the valve to pilot, and with a long match or grill lighter lit, place flame at the pilot location and press down on the pilot button beside the main valve.

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1 Answer

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1 Answer

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1 Answer

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There must be a blockage in the hose and regulator or your large tank may be checking and not allowing the unit to stay lit. Remove the large bottle. Let the gas line equalize for about 30 seconds and then reattach the bottle. Very slowly, open the knob on the large tank and I mean very slowly. Did I say open it slowly. The new OPD propane tanks often have a very touchie excess control valve that won't allow enough gas through if opened too rapidly. Now tray and light the heater. If you still experience the same, get a technician involved so they can inspect the gas pressure.

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