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Error code reference

Fisher & Paykel Washer Error Code #39

Pressure tube fault

Fisher & Paykel codesFisher & Paykel washer codes

Pressure tube fault — the pressure tube has become blocked, crushed, or has fallen off.

First step from the service manual

Check that the pressure tube is not blocked, crushed, or disconnected.

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

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What #39 means on a Fisher & Paykel washer

Error code #39 on a Fisher & Paykel washer indicates a pressure tube fault. The pressure tube, also called a water level hose, connects the tub to the pressure sensor (water level sensor). This sensor monitors the water level inside the drum by detecting air pressure changes within the sealed tube as water rises. When the control board cannot receive a valid signal from the pressure sensor due to a compromised tube, it triggers error #39 to prevent overfilling or incorrect cycle operation.

The fault is specifically mechanical in nature, meaning the tube itself is the problem rather than the sensor or control board. The three documented failure modes are a blockage inside the tube (often caused by detergent residue, lint, or debris), physical crushing of the tube (which can happen if the tube gets pinched during servicing or shifts out of position), and complete disconnection of the tube from either the tub fitting or the sensor port. Any of these conditions breaks the air pressure pathway, causing the sensor to read incorrectly or not at all.

Diagnosing this error should begin with a visual inspection of the full length of the pressure tube. Check both connection points, look for kinks or flattening along the tube body, and blow gently through the tube to verify it is clear of obstructions. If the tube is intact and properly connected but the error persists, the pressure sensor itself may need to be tested or replaced.

Source: manufacturer service documentation.

Common causes of #39

  1. 01

    Disconnected pressure tube

    Wiring / connection

    The tube may have slipped off its fitting at the tub port or at the pressure sensor. Check both ends of the tube and press each connection firmly back into place if loose.

  2. 02

    Kinked or crushed tube

    Wiring / connection

    The pressure tube can become pinched or flattened if it was shifted during a previous repair or if another component is pressing against it. Inspect the full length of the tube for any deformation.

  3. 03

    Blocked pressure tube

    Wiring / connection

    Detergent residue, lint, or debris can build up inside the tube over time and restrict airflow. Disconnect the tube and blow through it to check for blockage; a blocked tube will need to be cleared or replaced.

  4. 04

    Cracked or damaged pressure tube

    Part replacement

    The tube may have developed a crack or hole, breaking the sealed air pressure pathway the sensor relies on. A damaged tube cannot be repaired and will need to be replaced.

  5. 05

    Failed pressure sensor

    Part replacement

    If the tube is intact, clear, and properly connected but error #39 persists, the pressure sensor itself may have failed and should be tested. A faulty sensor will need to be replaced.

See the test procedure for each cause

Frequently asked questions about #39

What does #39 mean on a Fisher & Paykel washer?
Error #39 indicates a pressure tube fault. The pressure tube connects the washer tub to the water level sensor, and the control board has detected that this tube is blocked, crushed, or disconnected. The washer requires a functioning pressure tube to accurately monitor water levels during a cycle.
Can I fix error #39 myself without calling a technician?
In many cases, yes. Start by locating the pressure tube, which runs from the side of the tub to the pressure sensor on the control housing. Check that both ends are firmly connected, that the tube is not kinked or pinched, and that no debris is blocking it. If the tube is simply loose or kinked, reconnecting or repositioning it may resolve the error without any parts or tools.
Is it safe to keep using the washer when error #39 is displayed?
It is not recommended. The pressure tube is part of the system that prevents the washer from overfilling with water. Running the washer with this fault active means it cannot accurately measure the water level, which could lead to overfilling, leaks, or incomplete cycle operation. The issue should be resolved before continuing use.
Will resetting the washer clear error #39?
A reset may temporarily clear the error code from the display, but it will return as soon as the washer attempts to run a cycle and the control board again detects the pressure tube fault. The underlying physical issue with the tube must be corrected for the error to clear permanently.
How much does it cost to fix error #39 on a Fisher & Paykel washer?
If the tube only needs to be reconnected or straightened, there is no parts cost and the repair can be done at home for free. If the pressure tube itself is cracked or damaged and needs replacement, parts typically cost in the range of $10 to $40 depending on the model. If the pressure sensor has also failed, parts and labor combined could range from $100 to $250 depending on your location and service provider.

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