Error code reference

Merloni Oven Error Code ER07

Power supply board temperature too high (NTC on power board overheating).

First step from the service manual

Check oven installation in cabinet (air vents and wall clearance); check tangential fan operation; verify thermal insulation is correctly installed; replace power supply board.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
Verified part numbers when replacement is required

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M+ Max·Merloni Oven

ER07 on my Merloni Oven

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Power supply board temperature too high (NTC on

From Service Manual 634204, p.16:

1.Check oven installation in cabinet (air vents and wall clearance); check tangential fan operation; verify thermal insulation is correctly installed; replace power supply board.

2.Inspect the exhaust duct from the unit to the wall cap. A crushed or lint-blocked duct is the most common cause of airflow-related faults.

3.Measure static pressure at the blower housing with the lint screen removed. Expected: ≥ 1.0 in. w.c. in a still-air test.

Part W10861225

Blower wheel and housing

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First step from the service manual

Get the full diagnostic procedure for ER07.

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