Ask Experts Questions for FREE Help !
Ask
    jkaanta's Avatar
    jkaanta Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Apr 7, 2010, 05:52 PM
    Furnace ignition sequence weirdness
    I've got a Fraser-Johnston model PACE-LD14N100A propane furnace. When I turn on the heat, the blower starts immediately instead of the usual ignition sequence. The igniter never heats, no propane goes to the burners - just the blower chugging away at circulating unheated air through the ductwork for as long as I leave it on.

    Visual inspection of the igniter reveals no apparent damage. I've replaced the flame sensor, but to no effect.

    I would be grateful for any advice!

    Thanks!
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #2

    Apr 7, 2010, 06:16 PM

    Sounds like a limit problem. Check the limit switch operation first. Also could be the 50e 47 control board they tend to go bad often.
    jkaanta's Avatar
    jkaanta Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Apr 7, 2010, 07:03 PM
    Quote Originally Posted by Joshdta View Post
    sounds like a limit problem. check the limit switch operation first. also could be the 50e 47 control board they tend to go bad often.
    Thanks! I'll put an ohmmeter across the limit switches to check.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Carrier furnace: limit switch fault furnace has ignition but blower will not come on? [ 2 Answers ]

Board says it is a limit switch fault Furace goes into pre ignition, fan comes on and sometimes even the main burner ignites, but the blower will not come on... is this the blower motor or could this be a switch somewhere?

Furnace cycling ignition sequence repeatedly [ 1 Answers ]

Hello all, I have a Rheem furnace (model # RGLA-07EC-ER, serial # F4790 0817) with an igniter and it is acting up (now that has gotten cold of course). It will kick on the ignitier, light the flame, and then turn the gas on to full mode and then it shuts the gas off between 1 and roughly 15...

Electronic ignition red light flashing sequence [ 1 Answers ]

I am trying to find a manual on a Concord furnace. At this time the blower starts but the burners do not light and then the system shuts down until power is cut and then turned on again and the same thing occurs, the rde light flashes 3 times before complete shut down occurs. What does this mean...

Start up sequence on furnace is sporadic. [ 12 Answers ]

There are times when my Gas furnace Nordyne/Miller G3RA will do everything correct until it's time to introduce gas for ignition. The chamber motor starts, the glow plug lights I even hear the gas valve click open. The problem is sometimes it will immediately click closed.This may happen several...

Furnace turn on sequence [ 2 Answers ]

My Bryant Furnace works OK, except that it doesn't seem to be firing up in the proper sequence. Pilot light should ignite and then a short time later burners should ignite and blower should start. As unit is now, blower starts same time as pilot light goes on and then after a few seconds the...

View more questions Search