trianco eurostar combi with reillo G5 burner. balanced flue. There is a built in twin channel time clock.
The boiler runs fine sometimes, but it locks out other times. To get it to refire from lockout you can turn time clock from off to auto to run a few times and then it lights.
When it locks out there is power to the burner, but the fan & motor never start. So it never commences the 12 second purge period. The boiler pump is running.
My initial theory was that it was the control box, but when replacing we still get the same intermittant lockout.
The high limit stat has been tested and seems fine. Could something else other than the burner be causing the lockout.
i would appreciate any advice
The boiler runs fine sometimes, but it locks out other times. To get it to refire from lockout you can turn time clock from off to auto to run a few times and then it lights.
When it locks out there is power to the burner, but the fan & motor never start. So it never commences the 12 second purge period. The boiler pump is running.
My initial theory was that it was the control box, but when replacing we still get the same intermittant lockout.
The high limit stat has been tested and seems fine. Could something else other than the burner be causing the lockout.
i would appreciate any advice