Sharp Er04: low-temperature protection on the countertop convection model
Sharp lists Er04 on the SMC0985KS as low-temperature protection: the control has read a temperature too low for it to trust and stops to prevent further damage, sounding an alert until STOP/CLEAR is pressed.
Mon–Sat, 8am–8pm
- Sensors and temperature
- Microwave control board and touchpad repair
- Source: Sharp
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 Er04
actually means.
Sharp lists Er04 on the SMC0985KS as low-temperature protection: the control has read a temperature too low for it to trust and stops to prevent further damage, sounding an alert until STOP/CLEAR is pressed.
Sharp microwave display
What to do when Er04 shows on the microwaveKind of codeSensors and temperature
The control has stopped trusting what one of its sensors reports: the cook or humidity sensor that ends a sensor reheat when steam rises, or a thermal cutout that trips when the cavity or the magnetron runs too hot. A cutout that opens stops the microwave mid-cycle and often recovers once it cools; one that keeps tripping, or a sensor program that shuts off at once every time, needs the sensor, its wiring or the airflow behind it checked.
Usually leads toMicrowave control board and touchpad repair
Tracing a dead display, keys that do not answer or a code that keeps returning to the keypad, the ribbon, the relays or the main board, and replacing only the part that failed.
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.
MakeSharp
Sharp microwaves repaired in the kitchen, including drawer models under the counter, countertop units and those mounted over the burners.
SourceSharp USA support article table image: Automatic Protection Mechanism (SMC0985KS)
Sharp documents Er04 for the SMC0985KS countertop model only.
Before you book,
in this order.
Each step comes from Sharp's own guidance for Er04 on its microwaves. Follow it to the end: the last card says whether this is a visit.
Press STOP/CLEAR.
If the microwave has been stored or delivered cold, let it reach room temperature before using it again.
If Er04 appears in a warm kitchen, book a visit so the temperature sensing can be checked.
Still there?
It usually turns into microwave control board and touchpad repair. Book with the code and the model number.
What not to do
Er04 is not a sign that food is undercooked; it is about the reading the control gets from its sensor. It is the opposite of Er03, which is overheating.
What you may
notice with it.
The microwave problems Er04 tends to arrive with. Answer these at the microwave before anyone is booked.
All problems
Where Er04 usually leads
Microwave control board and touchpad repair.
Sharp
microwaves.
Sharp microwaves repaired in the kitchen, including drawer models under the counter, countertop units and those mounted over the burners.
Sharp microwave repairMore Sharp codes
Sensors and temperature on other makes
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 Sharp's own words
The display may show Er04, which means the appliance has entered into low temperature protection mode.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Sharp documents Er04 for the SMC0985KS countertop model only.
Sharp Er04 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 Er04.
Can I clear Er04 myself?
Why would my Sharp microwave show Er04 in a heated kitchen?
Does a cold garage cause Er04 on a Sharp microwave?
Is Er04 dangerous on my Sharp microwave?
Back to your everyday
Still showing Er04?
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.