I have Teledyne Laars Heater One series, 3 years ago the heater wouldnt turn on, i called service man he replaced the thermostat(see picture below) and pilot light to make it work. The following year again heater wouldnt turn on, i called a diffrent service guy, he again replaced the same thermostat, when i told him the thermostat was a year old, he said that because i didnt take it out and stored it inside during winter, that's why the thermostat had to be replaced again ( i live in Canada, very cold)
Last year, same thing, i had really hard time lighting the pilot, it wouldnt stay on and then the heater wouldnt turn on.
I called Teledyne customer support and they told me how to run a wire from red wire(see pic below) terminal on lighting assembly to high limit switch on top right of the heater. I did that and heater did turn on but wouldnt shut off. The only way to shut it off is by turning the switch off, i guess that way you bypass the thermostat.
This year same story heater doesnt turn on. I did put a jumper on the thermostat today but no luck.
What do i do, buy a new heater or attempt to fix it myself?
I am very handy, please help
PLEASE SEE THIS PICTURE, IS THIS THERMOSTAT OR PRESURE SWITCH?