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Boiler Will not turn on
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- Check the thermostat and make sure it is set properly and calling for heat. Adjust temperature setting if needed.
- Inspect the burner motor and ignition electrodes. Clean or replace if excessively dirty.
- Verify the fuel tank has sufficient oil and all fuel valves are open. Replenish tank and open valves as needed.
- Check for blown fuses or tripped circuit breakers related to boiler system. Reset breakers and replace any blown fuses.
- Inspect oil filter and lines for clogs preventing fuel flow. Replace filter and clear any obstructions.
- Check cad cell/photocell for soot blockage not allowing burner ignition. Clean cell gently or replace.
- Remove air from fuel pump and lines. Purge air by loosening fittings to bleed air when pump is on.
- Test oil burner motor, ignition, and operating controls with multimeter for faults. Replace faulty components.
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