Error code reference

Merloni Refrigerator Error Code rt

Room temperature probe open circuit or short circuit.

Merloni codes Merloni refrigerator codes

Room temperature probe open circuit or short circuit.

First step from the service manual

Normal operation continues with inhibition of room temperature probe monitoring (<13°C); error clears automatically if room probe functions correctly.

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
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rt on my Merloni Refrigerator

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Room temperature probe open circuit or short

From Service Manual 452282, p.14:

1.Normal operation continues with inhibition of room temperature probe monitoring (<13°C); error clears automatically if room probe functions correctly.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC; a drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part WPW10804018

Electronic control board

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First step from the service manual

Get the full diagnostic procedure for rt.

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