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Welcome, my name is XXXXX XXXXX I will do my best to help you with your issue.
I can provide you with an install manual but it won't tell you how to fix your unit. I can tell you how to identify replace the pressure switch but this may not be the cause of the fault.
You could have a blocked vent or a weak draft fan which would also cause this error
the install manual should be a start.
Ok, here it ishttp://enora.nordyne.com/Literature/708291b.pdf
I am not where the furnace is though, I am at my home and the furnace is at my son's house.
Thank you. I will download it and print it off
our neighbor will check it out tonight, he should be able to at least get a better idea of it than we have here.
I'd check the vent/exhaust for obstructions . Also check the small vacuum tubing connected to the switch for water or damage. Make sure this tubing is connected to the switch and to the fan housing
thank you for your help
You're welcome! Draft switches fail fairly frequently so it could very well be a bad switch
Thank you. I've downloaded and am printing it out now. we will give it a check over this evening. thank you