Sharp Er05: the thermostat circuit reads open
Sharp describes Er05 as the thermostats being under open-circuit protection.
Mon–Sat, 8am–8pm
- Sensors and temperature
- Microwave control board and touchpad repair
- Source: Sharp
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What Er05
actually means.
Sharp describes Er05 as the thermostats being under open-circuit protection. The control cannot get a reading through the thermostat circuit, so it stops and alerts until STOP/CLEAR is pressed or the microwave is unplugged.
Sharp microwave display
What to do when Er05 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)
Shown in Sharp's SMC0985KS error-code article; other Sharp microwaves checked do not use it.
Before you book,
in this order.
Each step comes from Sharp's own guidance for Er05 on its microwaves. Follow it to the end: the last card says whether this is a visit.
Press STOP/CLEAR and unplug the microwave for a minute.
Plug it back in and try a short run.
If Er05 comes back, stop using it and book a visit; the thermostat and its wiring are inside the cabinet.
Still there?
It usually turns into microwave control board and touchpad repair. Book with the code and the model number.
What not to do
Er05 is not caused by what you cooked. It is a circuit reading, the open counterpart of Er06.
What you may
notice with it.
The microwave problems Er05 tends to arrive with. Answer these at the microwave before anyone is booked.
All problems
Where Er05 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 Er05, which means the appliance's thermostats are under open circuit protection mode.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Shown in Sharp's SMC0985KS error-code article; other Sharp microwaves checked do not use it.
Sharp Er05 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 Er05.
Can I clear Er05 myself?
Can I fix Er05 on my Sharp microwave myself?
What is the difference between Er05 and Er06 on a Sharp?
Is a Sharp SMC0985KS with Er05 worth repairing?
Back to your everyday
Still showing Er05?
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.