One cool-down and restart routine fits every description of E4, which is overheating in the guides and a board error in two articles.
Model compatibility: Fisher & Paykel reuses codes across series and model years, so E4 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
Care guides describe E4 as the cooktop overheating; two support articles describe it as an electronic board or software error.
Cool it, then restart
That one idea covers every explanation of E4. The sources differ on the label, though, so here is who says what.
Care guides (the CI365 to CI122 and CI905 to CI302 models): they say the cooktop ran too hot. Wait for it to cool and switch it on again.
Full-surface induction article: a fault in the electronic board or software. Cut the supply for 1 minute, then restart.
Freestanding cooker article: also board or software. Let the fans halt and the oven go cold, isolate the supply for half a minute, then switch back on.
A routine that suits all three
Press POWER to shut the cooktop down and lift everything off the glass.
Allow it to cool. With an oven beneath the hob, hold off until its cooling fans have halted.
Disconnect at the wall or the breaker for whichever listed time is longest; on a cooktop that means one minute.
Reconnect, then test lightly with a single pan toward the back.
Cookers need extra care: the article cautions that taking power away from a very hot oven can harm both the oven and the cabinetry surrounding it.
Heat factors you control
Two items from the sources: the care guides link a blacked-out display from overheating to pans parked at the cooktop’s front, and the full-surface article recommends good airflow around the unit. If either matches your kitchen, correct it before deciding there is a fault.
Second appearance of E4
A repeat E4 after a thorough cool-down is where you stop. Support articles tell you to arrange a service repair. Care guides tell you to note the code and reach Customer Care or a trained technician.
Codes to look at next
E3, the second overheating entry in the owner guides.
EA, which that support article also treats as a board fault with a one-minute reset.
Cooktop repair after a repeat E4, Los Angeles
Phone (310) 872-1939 to schedule Fisher & Paykel cooktop repair in Los Angeles. The code, how long you let the unit rest and the model details are what to have ready. You can also read about our cooktop repair service.
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.