Fisher & Paykel Washer Error Code 45, 46, 103, 104, 105, or 106

When a Fisher & Paykel washer throws 45, 46, 103, 104, 105, or 106, it’s flagging trouble in the display module—the small control board and screen that handle user input, show cycle info, and pass commands to the main control. Think of it as the washer’s front-desk receptionist. If that receptionist stops taking messages, cycles won’t start, settings won’t stick, and diagnostics can’t run correctly.

What this fault actually means

These codes indicate the display module isn’t sending or receiving the right signals. Sometimes the module itself has failed; other times the low-voltage wiring between the display and the main control is loose, oxidized, or moisture-affected. The washer may still power on, but buttons don’t respond, cycles cancel mid-stream, or the panel reboots and flashes an error again.

Common signs you’ll notice

• Panel lights up but buttons lag, freeze, or double-press
• Cycles won’t start, or they quit a few minutes in
• Random beeps or the display resets during spin or drain
• Error code returns immediately after a quick power reset

Why it happens

High humidity in the laundry area, a splash that worked past the bezel, or steam migrating through the console can corrode connectors over time. Add in power fluctuations (brownouts, surges), and sensitive electronics take a hit. On older units, ribbon cables and small multi-pin plugs can loosen after years of vibration.

Safe first steps before you grab tools

Unplug the washer or flip the breaker for 5–10 minutes. A cold restart clears transient glitches and discharges the board. If the same code reappears right away—or the panel stays unresponsive—move to a visual inspection.

Smart DIY checks (no deep teardown)

Start with the easy, low-risk items to separate a real failure from a bad connection.

1. Stabilize power
   Plug the washer into a known-good outlet (avoid extension cords). If you have a surge protector, use it after testing the outlet.
2. Look and listen
   With power off, gently remove the control bezel or top cover (model-dependent). Inspect the display module connector and ribbon cable. You’re looking for a plug that isn’t fully seated, green/white oxidation, or signs of moisture.
3. Reseat once, carefully
   Unplug the small display connector, wait 10 seconds, and plug it back in straight and firm. Do the same where the ribbon cable meets the main control if accessible. Do not bend or scrape the contacts.
4. Dry it out
   If you see condensation, let the console air-dry thoroughly. You can use a hair dryer on cool from a distance—no heat.
5. Power up and test
   Restore power and try a short cycle (e.g., Rinse/Spin). If the panel behaves and no code returns, run a full wash to confirm.

If the error returns after a clean reseat—or the display remains erratic—the display module is likely faulty and should be replaced.

Replacing the display module (the right way)

This is a straightforward swap on many models, but treat it like any electronics job.

• Match by exact model and serial so you get the correct board revision and bezel fit.
• Work with dry hands on a dry surface. Avoid static (touch a grounded metal object first).
• Transfer any gaskets or light pipes from the old panel if your model uses them.
• After installation, perform a basic function check: power, cycle selection, start/pause, and a quick fill/drain.

If the new module doesn’t communicate—or the same code remains—suspect the harness between the display and main control, or the main control itself.

When DIY should stop

• Burn marks, swollen components, or melted plastic in the console
• Moisture damage that keeps reappearing
• The panel works but crashes during high-load events (fill → heat, or ramp to spin), which points to deeper control power issues

A technician can meter the low-voltage rails, check signal continuity end-to-end, and rule out the main control before you invest in parts.

Keep the fault from coming back

A few habits go a long way with modern control panels.

Simple, high-impact practices

• Manage moisture: Wipe the console after splashes. Keep the laundry room ventilated; run an exhaust fan during dryer use.
• Tame power swings: Use a quality surge protector or a whole-home surge device if your area sees frequent brownouts.
• Gentle cleaners only: No sprays directly on the panel; apply to a cloth first. Avoid ammonia/solvent-heavy products.
• Don’t pack the top: Heavy objects pressing on the console can stress the bezel and cable entries.
• Annual quick check: Pop the bezel, confirm connectors are firm and corrosion-free, and look for any moisture tracks or dust buildup.

Quick action plan

• Power reset → reseat display and harness connectors → full test cycle
• If errors return: replace the display module matched to your model
• If a new module doesn’t resolve it: inspect/replace the interconnect harness and evaluate the main control

Handled promptly, these codes are very fixable. A clean reseat may solve intermittent faults; a fresh display module restores a responsive panel and reliable cycle control.