Goodman single stage gas heater 问题续

https://bbs.wenxuecity.com/fdcj/1878970.html 

I bet on bad gas valve (not happy with HVAC company requesting change on both gas valve and control board). Got a friend with HVAC license to supervise/work with me on the gas valve change. It worked like ~1 wk before the problem occurred again. 

In anticipation of problem haunting me again. I bought replacement board already so I changed it right away. OK for 2wks now. 不听老人言，吃亏在眼前。

If your HVAC has intermittent problem, post it here and  

https://www.reddit.com/r/hvacadvice/ 

所有跟帖： 

• Sometimes the hot surface igniter may need replacing -米汤- ♂ (167 bytes) () 03/17/2026 postreply 01:18:44

• HVAC company installed a new SiN ignitor 1-2 years ago. -RomaVacation- ♂ (492 bytes) () 03/17/2026 postreply 11:18:44

• 以前有个旧的每次出状况先换点火，因为其他部件不太会坏，如电路控制除非是大电容，但非经常坏或者时好时坏，气开关没探头不会坏 -米汤- ♂ (230 bytes) () 03/17/2026 postreply 13:34:03

• hot surface igniter 又是探头也是点火 我见过，我的HSI 和flame detector are -RomaVacation- ♂ (60 bytes) () 03/18/2026 postreply 09:56:48

• 查查冷凝水管有没有堵住，尤其是如果装了加湿器 -SGZ- ♂ (0 bytes) () 03/17/2026 postreply 10:04:44

• 谢提醒。Cheap80% single stage furnace一般没问题，也查过 -RomaVacation- ♂ (232 bytes) () 03/18/2026 postreply 09:32:50