Model 51: Oil

DIAGNOSE THESE with OnWatch Burner Monitors

Diagnose these problems even when you are NOT there.
Motors with "dead spots"
Motors with locked rotors
Intermittent low line voltage
Controllers with weak holding coils
Chattering thermostats or boiler controls
Flame-out after ignition
Slipping drive couplings
Clogged fuel lines
Any increase or decrease in pump pressure
Cracked electrodes
Faulty transformers
Faulty primary controllers
Delayed ignition
CaD cell problems
Lingering (after drip) flame
Direct vent contamination
Faulty power venter proof switches