Ask Experts Questions for FREE Help !
Ask
    medwar02's Avatar
    medwar02 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 3, 2009, 07:25 PM
    Primary limit circuit open
    Consolidated furnace about 9 years old. I was informed that my heater isn't working so when I looked at the codes on the furnace I saw the light blinking 4 times which meant air circ.problem so I unplugged the unit and plugged it back in and it fired up. I let the unit circulate about 4 times and then it didn't come back on so I checked it again and now it is showing a primaru limit circuit open alarm. I really don't have the money right now to pay for someone to come charge a lot of money so can someone please help me with this. My elderly mother is living there and it is suppose to get in the 20's tomorrow.Oh by the way would the filters on the furnace cause something like this?I don't know when they were cleaned.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #2

    Dec 3, 2009, 09:53 PM

    Primary limit circuit faults are usually caused by overheating - usually caused by clogged air filter(s).
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!

Evcon Furnace Model BGD10016AX Limit Circuit Open [ 5 Answers ]

My furnace gives me this code by flashing the led 4 times which reads on the diagram in it that the limit circuit is open- I cleaned then little buttons that I think are the sensors. The blower won't shut of and just blows cold air- the burners are not igniting when I turn the thermostat way up. ...

Limit circuit open [ 2 Answers ]

I have a nordyn furnace. I replace the inducer motor cause it was making a noise and would not run all the time. I also replace a limit switch that is built onto the inducer motor. This limit switch keeps triping and it throws a code of "limit circuit open or external load on "w"." I can...

Limit circuit open [ 1 Answers ]

I have an intertherm gas furnace with a limit circuit open alarm. What can I do/check to clear this alarm?

Nordyne Furnace "burner limit circuit open", during A/C operation [ 4 Answers ]

Hi all, Hope this makes sense and required info is present. Any help or suggestions is appreciated, thanks. Furnace brand is Nordyne, about 3 years old, cooling portion model# of unit is JS3BA-036KA. This issue started last week. The A/C still works, but now the blower portion? Doesn't shut...

View more questions Search