Bad gas control valve?


  #1  
Old 03-12-19, 04:07 PM
A
Member
Thread Starter
Join Date: Mar 2019
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Bad gas control valve?

I have had a show of recent problems with my furnace, from a bad ignitor, and a bad control board. Both I have replaced with new/upgraded parts. The control board is a ICM286, and the furnace is a Goodman GDS80703ANA. The blower comes on, ignitor gets red hot, and has valve never opens .I can hear the relay clicking if I turn the gas valve switch off. When it's on, it doesn't open or ignite, and it then starts up the main fan, then she's off and locks out. The red LED is flashing consistently about a second apart.

New control board worked fine when it was installed, but after a week or so something has quit working. I have cleaned the flame sensor as well recently.
 
  #2  
Old 03-12-19, 04:45 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 64,640
Received 3,898 Upvotes on 3,494 Posts
Welcome to the forums.

I can hear the relay clicking if I turn the gas valve switch off.
Sorry..... that doesn't make any sense.
Does the relay not click if the gas valve is on ??

Did you check and confirm you were getting 24vAC ON the gas valve when it should be opening ?
Gas valves rarely go bad. Intermittent connections are very common.
 
  #3  
Old 03-12-19, 06:16 PM
R
Member
Join Date: Oct 2016
Posts: 2,183
Received 199 Upvotes on 181 Posts
You need to confirm gas pressure and voltage to the gas valve, before replacing it.
 
 

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