usmcdadx3,
After you first turn it on, wait about 15 - 20 seconds with the blower running, then listen for the rapid ticking sound of the igniter. (You might have to listen at the exhaust vent outside.) You should have a 3 Try board.
1. Purges for 15 - 20 seconds,
Tries to ingnite for 6-7 seconds. If no ignition then...
2. Purges for 15 - 20 seconds,
Tries to ingnite for 6-7 seconds. If no ignition then...
3. Purges for 15 - 20 seconds
Tries to ingnite for 6-7 seconds. If no ignition after the third try, then the board goes into "Lock-Out." You will have to turn the furnace OFF for a 10 second count, then back ON (this "reboots" the board). The furnace will then try all over again.
If the furnace does not ignite during the second attempt of 3 tries, stop the process. (Turn the furnace OFF and leave it OFF.) Continued repeats will not solve the problem. Other actions must be taken.
If you cannot hear the igniter ticking, you may have a problem with the board. If you can hear the ignitor ticking, you have a problem with the gas valve or the ignitor itself.
Because you are dealing with LP, I recommend a certified tech work on the furnace.
Hope this helps.
__________________
Dale Lee Sumner
RVIA/RVDA Master Certified RV Service Technician
www.sumdalus.com
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