Attack Overheating Electrical Component

Boiler emits a burning or electrical smell during operation.

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.

Possible Causes

Failing Attack circulation pump motor, Overheating main PCB, Loose electrical connections causing arcing, Fan motor overheating

Safety: Turn off power immediately if you notice burning smells. Do not continue to operate the boiler.

Steps:

Visual inspection: After cooling, remove the front cover and look for discolored or burnt components, especially around the PCB, pump, and fan.
Check for obstructions: Ensure ventilation openings around the boiler are not blocked.

Technician: Any sign of burnt wiring or components requires professional diagnosis and replacement.

Hard 4/5

Main Control PCB

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