Code 48: voltages on the valve diagnostic circuit show both hot and cold valves faulty, probably wiring or an open circuit coil.
Model compatibility: Fisher & Paykel reuses codes across series and model years, so 48 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The valve diagnostic circuit shows both the hot and cold valves faulty, most likely from wiring or an open circuit coil.
Code 48 is the reference entry among the three valve codes. Voltages measured by the Motor Controller on the valve diagnostic circuit mark both the hot valve and the cold valve as faulty. According to the manual, the likeliest cause is a valve harness that is connected wrongly, or a valve with an open circuit. Phases 2 to 6 can show it.
Who is suspected, in turn
Primary, wiring: are the harnesses firmly fastened to the valves, and are the pins free of backwards bends?
Secondary, water valves: are the coils free of open circuit?
Tertiary, Motor Controller module: replace it.
Series 11 details in the manual
The valves run at 24 volt and read 64 ohms when the temperature is 20 C (68 F).
A replacement valve should carry the same part number or one that supersedes it. Valve threads differ between models, and a mismatch can leak where the inlet hoses connect.
Terminals follow the RAST 2.5 system and have to be pushed in squarely.
For the owner
Wiring comes ahead of the coils in the manual’s order, and getting to either means opening the machine. What you can supply is the code and the washer’s model.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Fisher & Paykel appliance?
Book a specialist visit for a clear estimate and approval before any repair.
