Fisher & Paykel Washer Error Code 231
MW GW link error
MW GW link error - component has failed on the display board (Phase 6).
First step from the service manual
Replace Display module.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for 231.
- 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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What 231 means on a Fisher & Paykel washer
Error code 231 on a Fisher & Paykel washer indicates a MW GW link error, specifically signaling that a component on the display board has failed during Phase 6 of the machine's operational cycle. The MW GW link refers to the communication pathway between the main controller (MW) and the graphical or user interface module (GW). When this link fails, the machine cannot maintain reliable data exchange between the control board and the display assembly, causing the error to be thrown and normal operation to halt.
The display board in Fisher & Paykel washers handles user input, cycle selection, and status feedback. A failure on this board can stem from internal component degradation on the display PCB itself, corrupted firmware, or physical damage to the board. Connection issues between the display module and the main controller, such as loose ribbon cables or corroded connectors, can also disrupt the MW GW link and trigger this code. However, given that the first diagnostic step points directly to replacing the display module, the fault is most commonly isolated to the display board hardware rather than wiring or the main controller.
Phase 6 in the washer's operational sequence represents a specific stage of the cycle where this communication handshake is checked. A failure detected at this phase consistently points to the display module as the originating fault. Technicians should inspect the display board for visible damage, check all connectors between the display and main board, and proceed with display module replacement if no loose connections are found.
Source: manufacturer service documentation.
Common causes of 231
- 01
Failed display board component
Part replacementAn internal component on the display PCB has failed, breaking the communication link between the display module and the main controller. This is the primary cause indicated by the error and requires display module replacement.
- 02
Loose or disconnected ribbon cable
Wiring / connectionThe ribbon cable or connector linking the display board to the main control board may have come loose or become partially disconnected, interrupting the MW GW communication link. Inspect and reseat all connectors before replacing the module.
- 03
Corroded or damaged connectors
Wiring / connectionMoisture or age-related corrosion on the display board connectors can degrade signal integrity on the communication link. Visually inspect connector pins for oxidation or physical damage.
- 04
Corrupted display board firmware
Part replacementIn some cases, firmware corruption on the display module can cause it to fail its communication handshake with the main controller at Phase 6. A board replacement typically resolves this since firmware is embedded in the module.
- 05
Physical damage to the display module
Part replacementImpact damage or liquid ingress into the display assembly can cause internal component failure. Examine the display board for burn marks, cracked components, or signs of moisture intrusion.
Frequently asked questions about 231
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Will resetting my Fisher & Paykel washer clear error code 231?
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