honeywell smart valve troubleshooting


Old 12-10-08, 06:25 PM
Thread Starter
Join Date: Dec 2008
Location: Western New York
Posts: 1
Received 0 Votes on 0 Posts
honeywell smart valve troubleshooting

I have a rooftop HVAC unit with a smart valve SV 9500 M.
I have replaced that flame sensor - pilot assy with no results. When t'stat calls for heat, inducer motor starts and the pilot then lights. The main burrner does not come on. Am I right thinking the valve is the problem. If any safety device is open, the pilot would not light, isn't that right. I hate to just replace parts. Thanks
Sponsored Links
Old 12-10-08, 06:30 PM
Join Date: Dec 2004
Location: San Jose,Ca
Posts: 1,561
Received 0 Votes on 0 Posts
Try wiggling the wires on top of the valve. The 9500 had an internal wiring problem. If it comes on by this method then you do need a new valve

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: