Boiler shows E06; inlet temperature sensor fault on some models.

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.

Possible Causes

Failed inlet sensor, Loose harness, Sensor not fully inserted, Control board sensor circuit failure

How to Fix / Troubleshooting

Follow the same procedure as for A22: locate the inlet sensor, check wiring, verify insertion, and compare readings. Replace the inlet sensor if defective.

Repair Difficulty

Medium 3/5

Required Part

Inlet Temperature Sensor

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