Error code reference

Panasonic Air Conditioner Error Code H59

ECONAVI sensor abnormality

Panasonic codes Panasonic air conditioner codes

ECONAVI sensor abnormality — human activity sensor feedback signal fixed at 0 VDC or 5 VDC continuously for 25 seconds.

First step from the service manual

Check the connector connection of the human activity sensor.

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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H59 on my Panasonic Air Conditioner

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ECONAVI sensor abnormality — human activity

From Service Manual 763406, p.18:

1.Check the connector connection of the human activity sensor.

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 H59.

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