Heater quit working

[ocho]

Its a Suburban heater on a 2011 300 mp raptor. Im pretty handy with fixin things so if anyone has gone thru this or can provide some guidance so I can repair this myself, it would be appreciated greatly. It does have propane and the fan comes on, and the thermostat works. The ignitor is not kickin in or the gas valve isn't working. Anyhoo, it all seems to work, but its not lighting off. The fan will then turns off after about 3 minutes of no heat. What should I check?. Thanks so much.

[randy69]

Listen for the igniter, is it clicking. It lites a pilot flame and then a bimatalic sensor closes contacts and allows the main gas valve to come on.

[ocho]

Nope. No clicking sound.

[ocho]

Thanks for the help thus far. Where should i look to diagnose the ignitor?

[randy69]

Try the manual or Internet search. Igniter will work itself to death trying to lite the heater when gas is turned off. And you may have a glow plug instead of igniter. And again it will heat the bimaltalic switch to start main gas valve.