I have a pentair heater which when started the fan turns on for about 30-45 seconds and the just shuts off, we were told it was a faulty mother board. I replaced that (for a penny or two) but it still does the same thing. Any suggestions?
We had the same issue. Fan worked, gas flowed, burner glowed, but would not ignite. Heater would shut down after a few attempts and give the E04 message. Service Tech replaced the ignitor, now it works.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
AGS = Auto Gas Shutoff...
What is happening is the heater is monitoring (or sorta, by reasons difficult to explain here) Water Flow and Water Temperature. In this case, the AGS is triggered by a low water flow, or high Incoming Water Temp.
High internal water temp = triggered AGS.
If you have and can confirm, PROPER water flow, water temp coming into heater is Lower than 104°, then it is possible you have a faulty AGS.
But in most cases, it's only doing its job. Locate the reason for the fault, or why the AGS Switch turned the heater off.
The fan will continue to run for a few minutes after the pump turns off to purge exhaust gasses.If it was still heating you have a problem. To reset the heater,turn off the pump breaker for 30 seconds. After that you need a repairman.
Sounds like a flame sensor problem. The board is not getting the proper signal from the flame sensor so it thinks the burner did not light and shuts the gas supply off. It keeps the blower operating to ensure that no gas is accumulated in the burner area. I suggest you contact a local mechanical contractor to service your heater.
Sounds like the controller is the problem. This is the circuit board that has the display and controls on it. You can swing that panel open and try tapping on the white plastic cover the controller is under that. This might get the fan relay to release but you will have to replace the controller it will stick again