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Baz2126
I have a Grant 50/70 with a Riello RDB1 burner. For over 10 weeks now we've been trying to resolve a lockout problem that occurs at start-up. Normally the boiler will have failed to start and the lockout light will be lit. When the reset button is pressed it will run a full 40 second sequence but then lock-out again. At a second pressing of the reset button the boiler will fire up normally after 12 seconds. It is then something of a lottery as to how long the system will run before the same thing happens again.
So far we have changed the oil pump, two stems, two solenoids, two photocells, a motor, several nozels and substituted a new control box which made no difference so we replaced the original. I've also added a Tigerloop, checked and removed water from the tank, verified the supply to the burner and checked the baffles for any obstruction and checked and cleaned the filters at least twice. All to no avail.
Help please! any hints, tips or advice will be greatly appreciated.
Baz
So far we have changed the oil pump, two stems, two solenoids, two photocells, a motor, several nozels and substituted a new control box which made no difference so we replaced the original. I've also added a Tigerloop, checked and removed water from the tank, verified the supply to the burner and checked the baffles for any obstruction and checked and cleaned the filters at least twice. All to no avail.
Help please! any hints, tips or advice will be greatly appreciated.
Baz