The fan runs for a very short time every few minutes.
The fan on my vented water heater run for about one second every few minutes. The water heater seems to be working fine.'''
395210
声誉积分: 13
1
2个答案
已选择的解决方案
声誉积分: 685.3千
3.4千
1.1千
2.6千
It appears that only two things make the fan run, on/off switch and gas pressure switch.
UPDATE
Here's a link on how to check an air pressure switch on a gas water heater:
这个答案有帮助吗？
得分
2
How do I check the gas pressure switch?
I have been a natural gas service tech for 30+ years and have experienced this problem several times. It is caused by the gas control not completely shutting off and causing pressure to build in the burner tube . This causes the pressure switch to start the exhaust blower, makes the second pressure switch, which opens the solenoid valve on the burner tube. That relieves the pressure and the unit shuts off. This happens when the water is at the proper temperature and the thermostat (gas control) is not actually calling for heat.
Solution to the problem is to replace the gas control. This can be verified by connecting a manometer to the solenoid valve on the burner tube where the pressure switch is connected. It may take a few minutes for the pressure to show on the manometer as the leakage through the gas control is very slight.
这个答案有帮助吗？
得分
0
3条评论
Hi @jplt0829 ,
What is the make and model number of your water heater?
由 jayeff 完成的
State industry, turbo super - saver, turbo power vent 820. Thank you
由 John thompson 完成的
http://www.statewaterheaters.com/Product...
由 mayer 完成的