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Douglas, HVAC Technician
Category: HVAC
Satisfied Customers: 3089
Experience:  Manufacture Rep for Major Brand, Technical Trainer, NATE
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How do i reset the lockout on a worcester Heatslave 20/25 boiler It

Customer Question

How do i reset the lockout on a worcester Heatslave 20/25 boiler?

It went lockout after the oil run out, someone having stolen it!
Submitted: 7 years ago.
Category: HVAC
Expert:  Gina-Moderator replied 7 years ago.
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Expert:  Douglas replied 7 years ago.
someone stole your oil? That wasnt nice

It's likely the boiler has lost it's prime and you will need to follow the steps below.

If the burner fails to establish a normal firing pattern or flame failure occurs the flame monitoring photocell mounted in the burner body will alert the burner control box to shut
the burner down and provide a safe lockout state indicated by the illumination of the lockout indicator.
  • Wait 2 minutes then press the lockout reset button to initiate another start sequence.
  • Repeat procedure until a flame is established.
  • Start and run for 3 minutes then switch off.
  • Check for after-spurting from the nozzle, indicated by oil saturation on the combustion head.
If after-spurting occurs:
  • Release the burner retainers.
  • Remove the burner, combustion head and electrodes, hold the burner verticalto unscrew the nozzle and fill the nozzle holder with oil.
  • Refit nozzle, electrodes, combustion head and the burner.
  • Restart and run for 3 minute intervals untilafter-spurting stops.
  • Start and run for 20 minutes.
Customer: replied 7 years ago.

I have sorted it out myself now



Expert:  Douglas replied 7 years ago.