Robert, I'm sure you realize I'm not defending the service rep, just passing along my experience and sharing what he said. I spoke with him quite a bit and he told me that this is a problem he first came across a number of years ago. Although I can't tell you what steps he took to finally arrive at ...

Robert,

Ok, so you're not buying the design flaw idea - that the hole was made too small, which I was told allows it to get blocked too easily.

What route would you have suggested?

My post got plenty of views, but no replies... no problem, I know how forums can be. Thought I'd share the answer to my question of "Is there anyway to test or by pass this pressure switch to verify that is what's wrong?" In my case the answer was YES, there is a way to test it. I had a co...

I woke up this morning and found my Nordyne Furnace trying to come on, but not igniting (or blowing of course) and with the status light blinking twice. I see that this indicates "Pressure Switch Stuck Open". In the interest of full disclosure, last year I had what appeared to be a problem...