Suburban Furnace

DaveRVman wrote:
I thought I had a bad controller on my Suburban furnace. So I replaced it with a dinosaur electronics board.

Still no exact fix. However it starts by cycling the blower on for 1 second then turning off. Stays off for a couple minutes. Then it turns back on for 1 second, then off wait for a couple minutes.

Then it really starts to cycle faster and faster. 1-2 seconds on, 2 seconds off, 1-2 seconds on, 2 seconds off... Over and over again. for a long while this happens until I lose patience.

I am positive I have the new controller board on correctly.
I am positive my propane is on.

Wondering if it is my valve or striker. ?? Any pointers?

Is there a good way to test a striker?

fan should come on for about 20 seconds before the board signals for ignition. Now on some dinasour boards there are two settings, instant ignition or 20 second wait. IIRC the default is the 20 second delay. Make sure you have it set for the delay. If it is set that way and fan doesn't run for 20 seconds or so before ignition, something is amiss with the system, possibly the sail switch not connecting, thus shutting everything off.