E06
Danstoker High Fuel Pressure Trip

Boiler controller indicates E06; high gas pressure or fuel pressure alarm active.

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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

Incorrectly adjusted gas pressure regulator, Stuck gas regulator in Danstoker gas train, Faulty high gas pressure switch, For oil: blocked return line causing high pump pressure

How to Fix / Troubleshooting

Safety: Turn off power and close the main fuel valve. Only licensed gas/oil technicians should adjust regulators.

  • Check pressure readings: Compare actual gas pressure on the downstream gauge of the Danstoker gas train with the design value. For oil, check pump discharge pressure.
  • Inspect regulator: Ensure the gas pressure regulator vent is not blocked. Look for signs of damage or contamination. Do not disassemble the regulator unless qualified.
  • Verify high-pressure switch: Inspect the high gas pressure switch and its sensing line. Confirm the setpoint is correct and that the switch is not stuck. Replace if it trips at normal pressures.
  • Reset and test: After any corrections, reopen fuel valves, restore power, and reset the boiler. Monitor pressure during startup.

If E06 persists, a professional must recalibrate or replace the regulator and safety switches.

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Repair Difficulty

Professional Required 5/5

Required Part

Gas Pressure Regulator
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