mypros+
Error code reference

Fisher & Paykel Washer Error Code 55

Phase 3 to 6 System Step Fail

Fisher & Paykel codesFisher & Paykel washer codes

Phase 3 to 6 System Step Fail - Rotor Position Sensor fault.

First step from the service manual

Check Motor and Rotor Position Sensor wiring; check RPS with RPS Tester.

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

MyPros+ Max

Get the full diagnostic procedure for 55.

  • 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
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 55 means on a Fisher & Paykel washer

Error code 55 on a Fisher & Paykel washer indicates a Phase 3 to 6 System Step Fail caused by a Rotor Position Sensor (RPS) fault. The RPS is a critical component in the motor control system that monitors the exact rotational position of the motor rotor during operation. The motor controller uses this positional feedback to coordinate the energizing sequence of the motor phases, allowing precise speed and torque control. When the RPS fails to deliver accurate or consistent signals during the phase 3 through 6 steps of the motor startup or operational sequence, the controller detects a mismatch and triggers this fault code.

The most common sources of this fault are wiring issues between the motor and the RPS, or a failed RPS unit itself. Damaged, corroded, or disconnected connectors along the motor harness can interrupt the position signal and cause the controller to lose track of rotor position. The RPS itself can also fail due to physical damage, contamination, or internal component degradation. Fisher & Paykel diagnostic procedure requires checking all motor and RPS wiring first, then confirming RPS function using the dedicated RPS Tester tool. This two-step approach isolates whether the fault lies in the wiring circuit or the sensor itself, avoiding unnecessary part replacement.

Source: manufacturer service documentation.

Common causes of 55

  1. 01

    Loose or damaged RPS wiring connector

    Wiring / connection

    The wiring harness connecting the Rotor Position Sensor to the motor control board can develop loose, corroded, or broken connections. Inspect all connectors along the motor harness for signs of corrosion, fraying, or incomplete seating.

  2. 02

    Faulty Rotor Position Sensor

    Part replacement

    The RPS unit itself can fail due to internal component degradation, physical damage, or contamination. Confirm sensor failure using the Fisher & Paykel RPS Tester before replacing the unit.

  3. 03

    Damaged motor wiring harness

    Part replacement

    The wiring running between the motor and the control system can become pinched, abraded, or broken, particularly near routing points or moving components. Inspect the full length of the harness for visible damage.

  4. 04

    Motor control board fault

    Part replacement

    If the RPS and all associated wiring test correctly, the motor control board may be failing to process the position signals accurately. This is a less common cause and should be considered only after ruling out the sensor and wiring.

See the test procedure for each cause

Frequently asked questions about 55

What does 55 mean on a Fisher & Paykel washer?
Error code 55 indicates a Phase 3 to 6 System Step Fail caused by a Rotor Position Sensor fault. The Rotor Position Sensor monitors the motor's rotational position and provides feedback to the motor controller. When this sensor or its wiring fails, the motor cannot operate correctly and the washer stops to prevent damage.
Can I fix error code 55 on my Fisher & Paykel washer myself?
A knowledgeable DIYer can start by inspecting the motor and Rotor Position Sensor wiring for loose connectors, corrosion, or visible damage. However, properly confirming whether the RPS itself has failed requires the Fisher & Paykel RPS Tester tool, which is typically available only to technicians. If wiring checks out and the sensor needs testing or replacement, professional service is recommended.
Is it safe to keep using my washer when error code 55 appears?
No, you should not continue running the washer with error code 55 active. The fault indicates the motor control system cannot accurately track rotor position, which means the motor cannot run correctly. Continued use could cause further damage to the motor or control board.
How much does it cost to repair error code 55 on a Fisher & Paykel washer?
Repair costs depend on the root cause. If only a wiring connector needs reseating or repair, costs may be relatively low, generally in the range of $75 to $150 for a service call. A Rotor Position Sensor replacement typically adds $50 to $150 in parts. Motor control board replacement is the most expensive scenario, often ranging from $200 to $400 or more including labor.
Will resetting the washer clear error code 55?
A reset may clear the displayed code temporarily, but if the underlying fault with the Rotor Position Sensor or its wiring has not been corrected, the error will return during the next wash cycle. A proper repair requires diagnosing and resolving the wiring or sensor issue before the fault is truly resolved.

Related Fisher & Paykel washer codes

All Fisher & Paykel washer codes
View all 175 Fisher & Paykel washer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass