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Boiler Runs all the time
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- Check that the thermostat is set properly and functioning. Lower to temperature below room temp to trigger shutdown.
- Inspect the burner electrodes for dirt buildup or cracks, preventing flame detection. Clean or replace.
- Check for faulty wiring connections to the control thermostat and operating valves. Tighten or repair wiring.
- Remove and check the cad cell/photocell that detects flame. Clean sooty cell or replace.
- Verify fuel pump pressure and regulator settings are correct. Adjust to proper specs if too high.
- Check oil nozzle size and pattern. Wrong spray can lead to flame rollout and constant burning.
- Remove any corrosion and mineral buildup in lines and valves causing sticking. Descale and clean.
- Do a combustion test and efficiency check.
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