Pentair Minimax 100 Won T Light

Unless noted otherwise all instructions refer to both the minimax 75 and minimax 100 heaters designated collectively as the minimax 100.
Pentair minimax 100 won t light. My pentair minimax 100 will not light. Pentair s innovations in pool heaters and heat pumps are leading a new revolution in energy efficiency convenience and emissions reduction. When it flashes over the flames have burnt the wires as well. Pentair has been of no help.
I can t complain it s almost 20 years old so i ve de. The pentair mastertemp pool heater adopted the sealed combustion chamber with controlled exhaust design. I then tried shorting the sensor leads at the thermostat board and i tried shorting the potentiometer temp adjustments at the thermostat board but nothing. There can t be any soot build up because it has not been used.
It has it s own gas line running directly from the meter. The minimax ch is a compact lightweight and efficient gas fired high performance pool and spa heater that can be directly connected to schedule 40 pvc pipe and has a built in top. I have opened the pool this year filled my propane tank and it isn t lighting nor do i hear it trying to light. After many frustrating attempts i finally found the easy fix for my pentair minimax heater.
Pilot light is burning. I shorted the hi limit safety shut off pressure switch and thermal cut off. The minimax ch is a millivolt heater and has a self sustaining pilot and requires no external power source. The minimax 100 is a compact lightweight and efficient gas fired high performance aboveground pool and spa heater that can be connected to schedule 40 cpvc or abs pipe and has a built in top.
In 2004 pentair acquired the sta rite company and it s max e therm heater technology. Was able to manually ignite burners and all worked fine so believed that i had a problem with either the igniter or the 472447 module. Replaced ignition module with new one and now only getting 66 volts across the two white wires. I have a brand new minimax 100 and have replaced the thermal fuse twice in a matter of two weeks.
Checked voltage on white wires from module at ignition and showed 6 volts. My mini max nt heater won t ignite. It stopped lighting at the end of last season and i thought i was out of propane.