Bosch EasyControl No Power to EasyControl

Bosch EasyControl display is completely blank and unresponsive; heating does not respond to thermostat.

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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 circuit breaker or fused spur feeding EasyControl or boiler, Loose 230 V supply to EasyControl power module, Faulty EasyControl power supply module, Incorrect wiring to wall plate terminals

How to Fix / Troubleshooting

Safety first: This involves mains voltage. If you are not competent, contact a qualified electrician or heating engineer.

  • 1. Check power sources: Verify that the boiler and any dedicated fused spur for the EasyControl are switched on and that fuses/breakers have not tripped.
  • 2. Inspect wall plate: With power isolated, remove the EasyControl from its wall plate and check that the 230 V feed (if used) is correctly connected to the designated L and N terminals on the Bosch EasyControl power module, not to low-voltage bus terminals.
  • 3. Test voltage: Using a multimeter, confirm presence of 230 V at the input of the EasyControl power module or 24 V/low-voltage at the bus terminals if powered from the boiler.
  • 4. Reseat the unit: Ensure the EasyControl is firmly clipped onto the wall plate so that all contact pins engage properly.

Professional help: If correct voltage is present but the display remains dead, the internal power supply or main board has failed and the EasyControl should be replaced.

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Repair Difficulty

Hard 4/5

Required Part

Bosch EasyControl power supply module
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