My oil burner quit last night, and I can't get someone here until Monday. It's a Beckett that's about 15 years old. The reset button was popped, and when I push it there's no attempt to restart, just a brief hum in the box then it pops again. The motor spins free, the cad cell is about three months old. I checked the connections under the box the reset button is on and don't seem to have power there. The controller with the thermocouple gets power, but there's a relay in it that feels warm and is buzzing. I'm assuming this is the bad part, but could find anything online for checking it. Any suggestions?
In reply to Ranger50 :
No, I have about half a tank
Then I got nothing besides what you mentioned. You can back probe for output power of that relay.
Does the relay have a part number on it? If so and it's not expensive or hard to source, try that? Being hot and buzzing doesn't sound right.
Is there a capacitor/starter on the motor? They go bad frequently as well.
But if you have a warm/buzzing relay, it pretty much has to be the relay or something downstream of it that is shorted/failed.
It ended up being a burnt out protector relay. Nothing I found on line explained how to troubleshoot it but if I bypassed it the boiler fired up. For something so simple decent repair instructions are tough to find.
