Honeywell smart gas valve sv9500m 2674
I looked at a Heil 90%furnace- about 15 years old today with one of these valves on it . The igniter and the pilot started and stayed lit . The main gas valve would not open. I read that there have been problems with the molex plug connections on these valves even some recalls a few years back. Looking for some tips
Google it with keyword troubleshooting and you will find what you need.
You have enough posts and have been around awhile, why not apply for pro membership?
Originally Posted by jmiles
Originally Posted by garya505
Does the main gas valve get timed on or is it turned On from the signal from the flame sensor/ pilot???
Sorry, this is not a DIY site. So we are not allowed to give out advise of this nature.
Since answering your question in the open Residential Forums would be posting instruction for DIYers that may read this post later.
If your in the trade, get your post count up to 15, and apply for Pro Membership.
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Sorry. I have hundreds out both the first and second generation with no higher incident of failure than any other valve type I service.
Originally Posted by spymoocow
A good HVAC tech knows how, an educated HVAC tech knows why!