Need help with Reznor heater FE50

[Ash0468]

Hi,

I just moved into a house and it has a Reznor FE50 (from 1991). It’s attached to power and gas lines but I can’t seem to find a thermostat. I’m assuming it’s wired in with the house thermostat which is a “NEST” . Issue is that the heater doesn’t start- no ignition click, no gas blowing , no noise whatsoever. It’s as if it’s dead. I cheched the electrical wiring with a extension cable to make sure it gets power and it’s not a blown fuse. I’m thinking it would be an ignition module issue. It seems to have an electronic ignition system.

Is there a procedure to activate the ignitor. Adding some pictures of the wiring. I talked to the previous owner of the house who said it worked last winter.

Any input on where to start would be very helpful.

Thanks

 

[The Cobbler]

so it has power to the unit?
did you try to cross the tstat wires on the unit? remove the stat wires wire & cross the r&w terminals
gas valve is set to sun or whatever?
what is that white wire laying beside the terminal of the module

 

[Ash0468]

so it has power to the unit?
did you try to cross the tstat wires on the unit? remove the stat wires wire & cross the r&w terminals
gas valve is set to sun or whatever?
what is that white wire laying beside the terminal of the module

Thanks for replying.

Yes the unit has power I have checked.

What are the Tstat wires and how do i cross them?

 

[The Cobbler]

the small red & green wires marked w & r remove them & jump the terminals on the heater . that makes the unit call for heat. it helps rules in or out a thermostat issue