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Error code reference

Fisher & Paykel Washer Error Code 18

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Fisher & Paykel codesFisher & Paykel washer codes
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What the 18 error code actually means

Your Fisher & Paykel washer has detected that two of its internal control systems, the display board and the motor controller, are not communicating properly with each other. This is often caused by a brief power glitch and can sometimes be fixed by simply unplugging the machine for a few seconds and plugging it back in. If the error keeps coming back, one of the control boards or the wiring between them may need to be inspected or replaced.

Diagnostic procedure

The full 18 procedure

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1
First diagnostic step
Turn off at the wall and back on after 5 seconds. If fault persists disable auto restart and retest for new fault code.
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Most common causes of 18

Ranked by how often they cause this code
  1. 1Transient power fluctuation
  2. 2Loose or damaged wiring between modules
  3. 3Faulty Motor Controller board
  4. 4Faulty Display Module board
  5. 5Software or firmware state corruption

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Questions people ask about 18

What does 18 mean on a Fisher & Paykel washer?
Error code 18 means the Display Module and Motor Controller are running out of sequence with each other. These two control systems need to communicate in a coordinated way, and when that timing breaks down, the washer stops and displays this fault. It can be caused by a power glitch, a wiring issue, or a failing control board. A simple power reset often clears it if the cause was temporary.
Is it safe to keep using my Fisher & Paykel washer when error 18 is showing?
No, you should not continue using the washer while error 18 is active. The fault indicates the motor control system and display module are not operating in sync, which means the machine cannot reliably control the wash cycle. Continuing to run it in this state could lead to unpredictable behavior or worsen an underlying fault.
What should I do if error 18 keeps coming back after resetting?
If error 18 returns after a power reset, disable the auto restart function on the washer and run it again to see if a different fault code appears. A secondary code can help identify whether the Motor Controller, Display Module, or a wiring connection between them is the root cause. At this point, a qualified appliance technician should inspect the machine, as component replacement may be required.
Will turning the washer off and on again fix error code 18?
Yes, a power reset is the recommended first step. Turn the washer off at the wall socket, wait at least 5 seconds, then power it back on. If the error was caused by a transient power fluctuation, this reset allows both control modules to resynchronize and resume normal operation. If the fault returns after the reset, further diagnosis is needed.
How much does it cost to fix error code 18 on a Fisher & Paykel washer?
If the issue is resolved by a power reset, there is no cost. If wiring or connectors are the cause, a technician visit to inspect and repair the harness could cost anywhere from $80 to $200 depending on your location. Replacing a Motor Controller or Display Module board typically adds $150 to $400 or more in parts and labor, depending on the specific model and part pricing.

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