I have an old airease furnace and it will not come on. I changed the circuit board and the transformer, what could cause this?

Have you checked for power to the unit?
Have you checked the safety blower door switch for proper operation?
Have you checked for power at the circuit board?
Have you checked the low voltage transformer for 24 volt output?

Post back with results.

What could cause what. You say the unit will not come on. What part won't come on. Really need a breakdown of what is happening with the furnace.

Do you have pilot? I can't see your unit. I can't see what your unit is doing. I wish I could snap my fingures and fix your problem, but I need to know what I am dealing with.

When you say furnace will not come on... do you mean blower won't come on, or pilot won't come on, or main burners won't come on. Please help us help you.

UNGH! Why do people even bother? Saying "It don't work" and expecting a solution.

They do not know better. Just when I needed it the most my magic wand had a recall for bad rechargeable batterys. I hope they can get it fixed before it gets real cold since I have to use it for some questions and answers.. The crystal ball was also having some problems but I think I got that fixed.

Quote:

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Originally Posted by hvac1000

The crystal ball was also having some problems ...

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I use my Magic 8-Ball when that happens. At least it's some kind of predictive ball. :D

But seriously, if the OP can post some specifics we might be able to help.

I do the tea leave thing myself.

dycus,, what we are saying, is we need more info. If you don't have any experience with what you are trying to fix, you need to either go to years of schooling, or hire a pro to fix your problem. We are here to help, but we need to know that the asker has some knowledge of the system.

Hvac, I have some everlast batterys that will make your wand work for ever(well, not forever, Actually if the batterys last for more than twelve hours, consult your docter.)lol, When mine last for more than twelve hours, I call my docter to thank him.

I also had to go to the hospital after taking Viagra. It lasted more than four hours. LOL. PS the wife was happy with the results.

Smilin' Bob? Er... um Smilin' hvac1000?