Danstoker No Power to Boiler Control

Boiler fails to start; no display or lights on Danstoker control panel.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Tripped main breaker or fuse, Faulty main isolator switch, Loose power supply wiring, Internal control transformer failure

How to Fix / Troubleshooting

Safety: Electrical troubleshooting must be done with caution. Isolate power before opening panels; live testing should be done only by qualified personnel.

  • Check external supply: Verify that the building breaker feeding the Danstoker boiler is on and not tripped.
  • Inspect main isolator: Ensure the boiler’s main isolator switch is in the ON position and functioning.
  • Check fuses: Open the control panel and inspect control fuses and the control transformer primary/secondary for continuity.
  • Verify wiring: Tighten any loose terminals on the incoming supply and control circuits.

If power is present at the panel but the controller remains dead, the control PCB or HMI may need replacement by a service technician.

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Repair Difficulty

Medium 3/5

Required Part

Control Transformer / Main Isolator
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