Suburban propane furnace slow starting

[95Pop210]

My 95 Roadtek 210 Ppopular has a Suburban Model NT16SE furnace. When you turn the thermostat on, the blower starts in 30 to 45 seconds but the gas takes several minutes to ignite if it lights at all. How quickly should the gas ignite and is there any adjustment possible. Thank you for your input

[hbn7hj]

I would remove the ignitor, clean it, file the tips to clean off contamination, adjust the gap then replace it. Things should improve. You could also replace the ignitor with a new part but I think that would require removing the furnace to get at the board connector.

[SteveJ]

A lot of times, reduced air flow will be the culprit. There is a sail switch that measures air flow in the ignition/flame control circuit that must activate to complete the circuit for ignition start up procedure to happen.

Check for mud dauber, bee's nest, or other crap in the intake and exhaust of the furnace.

[95Pop210]

any idea what the proper gap diatance shoud be thanks

[SteveJ]

Originally Posted by 95Pop210

any idea what the proper gap diatance shoud be thanks

????

Gap distance?

What gap?

[95Pop210]

the gap on the electrode (ignitor) on the suburban heater

[SteveJ]

Originally Posted by 95Pop210

the gap on the electrode (ignitor) on the suburban heater

No help here. Is it listed in the manual?

Before you start digging around a good first move would be to check for critter nests in the intake and/or exhaust. Have you?

[95Pop210]

closed the gap on the ignitor and it is working. one more little issue finished thanks for comments

[SteveJ]

Originally Posted by 95Pop210

closed the gap on the ignitor and it is working. one more little issue finished thanks for comments

Awesome.




















plus 3 more characters

[hbn7hj]

I don't know why messing with the ignitor clears up a lot of furnace problems. Sometimes just removing and replacing it fixes things. If anyone knows, I'm all ears. It could have just as well been an sir flow/sail switch thing but it wasn't.
Harry