

Fisher & Paykel A5: the microwave system has overheated
A5 is the second overheat alert on the Series 7 and Series 9 speed ovens, and it points at the microwave system rather than the cavity.
Mon–Sat, 8am–8pm
- Heating and magnetron
- Microwave magnetron repair
- Source: Fisher & Paykel
Book a visit
Three short steps, about a minute.
or call (844) 393-5858
Loading appointment form…
The appointment form couldn’t load. Please try again.
What A5
actually means.
A5 is the second overheat alert on the Series 7 and Series 9 speed ovens, and it points at the microwave system rather than the cavity. Long runs at full microwave power, a very small load or a cooling fan that no longer moves enough air can bring it on; the guide's answer is to cool down and reset the power.
Fisher & Paykel microwave display
What to do when A5 shows on the microwaveKind of codeHeating and magnetron
The microwave ran a cycle and the control saw no heat come of it, or saw the power section behave strangely. The cause sits somewhere in the chain that makes the energy: the magnetron, the high-voltage diode and capacitor, the transformer that feeds them. All of it lives behind the outer cabinet, where a capacitor keeps a dangerous charge even unplugged, so after a restart the owner's part ends at booking the visit.
Usually leads toMicrowave magnetron repair
Replacing the tube that makes a microwave's heat, after proving the parts that feed it are sound, and renewing the waveguide cover and any pitted metal where sparks have been.
Shows up asWhat a Microwave Error Code Is Telling You
A microwave error code may be a letter and a number on the display, a lock or demo word, a row of dashes, or a beep with a blinking clock, and it can show while the microwave still heats or block every key until it is cleared.
MakeFisher & Paykel
Fisher & Paykel microwaves looked at where they are built in, with the first minutes spent on the door, its seal and the latch feel.
SourceFisher & Paykel Series 7 and 9 convection speed oven user guide (OM24NDTDX1, OM30NDTDX1 and siblings)
Printed in the use and care guide shared by the OM24NDTDX1, OM24NMTDB1, OM24NDTDB1, OM30NDTDX1, OM30NMTDB1 and OM30NDTDB1 convection speed ovens. The older OM24NDB1 and OM30NPX1 speed ovens do not list it; they report trouble as an F code kept in an event log.
Before you book,
in this order.
Each step comes from Fisher & Paykel's own guidance for A5 on its microwaves. Follow it to the end: the last card says whether this is a visit.
Stop the program and keep the door closed while the fans cool the oven.
After the cool-down, cut power at the panel for a minute and restore it.
Never test the microwave mode empty; if you try again, put a cup of water inside.
If A5 returns, book a visit: the magnetron, its thermal cutout and the cooling fan sit inside the cabinet, which is never an owner job.
Still there?
It usually turns into microwave magnetron repair. Book with the code and the model number.
What not to do
A5 is not the same as A1, which reports heat in the cavity as a whole. One A5 does not prove the magnetron is failing, but a repeat A5 is exactly where we test it first.
What you may
notice with it.
The microwave problems A5 tends to arrive with. Answer these at the microwave before anyone is booked.
All problemsWhere A5 usually leads
Microwave magnetron repair.
Fisher & Paykel
microwaves.
Fisher & Paykel microwaves looked at where they are built in, with the first minutes spent on the door, its seal and the latch feel.
Fisher & Paykel microwave repair
Microwave hood combination
The microwave that hangs from the wall cabinets above the burners, heating food in its cavity while its own fan, light and filters handle the steam and grease rising from the pans beneath it.
Built-in microwave
A microwave set into a tall cabinet or a wall of cabinetry at eye level, either a countertop body wrapped in a trim kit or a true built-in model, including speed and convection microwaves that brown as well as heat.
Microwave drawer
A microwave built under a counter or into a kitchen island that opens like a drawer at the touch of a key, with a motor and gears sliding its cavity out toward you.
In Fisher & Paykel's own words
Microwave system has overheated.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Printed in the use and care guide shared by the OM24NDTDX1, OM24NMTDB1, OM24NDTDB1, OM30NDTDX1, OM30NMTDB1 and OM30NDTDB1 convection speed ovens. The older OM24NDB1 and OM30NPX1 speed ovens do not list it; they report trouble as an F code kept in an event log.
Fisher & Paykel A5 microwave repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about A5.
Can I clear A5 myself?
What makes A5 appear on a Fisher & Paykel speed oven?
Why are the fans still running after A5 stopped my cooking?
Does A5 mean the magnetron has to be replaced?
Back to your everyday
Still showing A5?
Three details make the booking useful: the characters or beeps just as they appeared, every character of the model number, and whether a cup of water still warms up. With those, the technician arrives already halfway to the answer.