Pressure Switch

[bIGEARL721]

I helped a frend of my sons install a mod # h9mpd100j14c2 100,000 btu, diagnostic code ( Pressure switch open when should be closed) the switche is good . the combustion motor is good. I'm havinga hard time fixing the error can any one help me with this. I remove the vent pipe and the heater worked ok, all the vent pipe is new. What could my problem be ? Horizonal Left thru Top

[second opinion]

I helped a frend of my sons install a mod # h9mpd100j14c2 100,000 btu, diagnostic code ( Pressure switch open when should be closed) the switche is good . the combustion motor is good. I'm havinga hard time fixing the error can any one help me with this. I remove the vent pipe and the heater worked ok, all the vent pipe is new. What could my problem be ? Horizonal Left thru Top

your own question

[bIGEARL721]

The Diagnostc code keeps on show pressure switch the switch is good , combustiion motor is good and the exhaust pvc is new.

[bIGEARL721]

I did ?

[ampulman]

?????

[bIGEARL721]

How did i answer my own question ?

[second opinion]

In short did you not say error code but you could make work?

[bIGEARL721]

Yes, by removing the exhaust vent, it wili fire up

[second opinion]

Yes, by removing the exhaust vent, it wili fire up

Without giving you DIY that every one can read and not trying to sound condescending but think.

[marvin]

rtfm

[bIGEARL721]

I could be, I found the problem

[timebuilder]

You should call a pro who can give info in person and help you correct the underlying cause of what that switch is telling you.

We cannot give DIY info on this site.