Top 20 Sharp R-1480 Microwave Oven Questions & Answers

No use on fixing the oven. They cost $150-300 so why bother?

Sharp R-1480... | 212 views | 0 helpful votes

I would guess that the boiling water may not have been the cause ...
If you are lucky ... try this first:
Unplug or turn the circuit breaker off (if it is a built in unit). Wait an hour and then repower.
Odds are that will not clear things up ... but it is easy to try. Probably one of the electronic internals broke.
A number of different internal component problems could cause this heating failure in the microwave. It could be the magnetron, the high voltage transformer, the PC board, the diode, and the capacitor. This type of problem will need to be diagnosed and repaired by a service technician. Microwaves are inherently dangerous to service. This type of repair is not something that you want to try to do yourself. Internal capacitors in the microwave can retain a lethal electrical charge even when the microwave is completely unplugged. A microwave radiation leakage test should be performed on the unit using proper testing equipment following any internal component repair.

Sharp R-1480... | 134 views | 0 helpful votes

Check or replace your door switch.

Sharp R-1480... | 131 views | 0 helpful votes

Door switch error. DO NOT USE like this.

Sharp R-1480... | 173 views | 0 helpful votes

SORRY but we have no customer service . This is a free advice website ONLY

Sharp R-1480... | 81 views | 0 helpful votes

The Child Lock prevents unwanted oven operation
such as by small children. The oven can be set so
that the control panel is deactivated or locked. To
set, touch Custom Help, the number 1 and Start/
Touch On. Should a pad be touched, LOCK .
.. ON will appear in the display.
To cancel, touch Custom Help and Stop/Clear. "

Also, to find manuals........

Sharp R-1480... | 802 views | 0 helpful votes

They is one of the DOOR SWITCH need to replace

Sharp R-1480... | 311 views | 0 helpful votes

Take it to a Discount Appliance or Used Appliance store and have them repair it. There they will have the parts that are used and cheaper to repair than hiring an Appliance Service Technician.
Option 2
Take the microwave apart and go to and type in your model number and find the broken part and part number. Then order the part through or Later when parts arrive at your door... install theparts yourself and save money!

Sharp R-1480... | 3,917 views | 0 helpful votes

On a sharp R-1480, they use a solid state IC on the control board to switch the night/work lights on and off. These IC's can burn up and quit working, or short out and not turn the lights off. I replaced several of these boards close to twenty years ago but I never saw one that was anywhere near close to being a fire hazard. I'm sure that these boards are no longer available.....

Sharp R-1480... | 117 views | 1 helpful votes

The Sharp model numbers indicate the cabinet color by the last number in the model number. 0=Black, 1=White and 2= Almond

Sharp R-1480... | 52 views | 0 helpful votes

If you are referring to the beep when you press any function,the beeper on the board may have failed.
The two other sounds are :i. there is a fan that comes on when start is pressed and, ii. the other sound is a heavy hum also when start is pressed.This comes from the transformer and maybe the magnetron tube. If you are not getting these sounds then troubleshoot these areas,careful though, the output voltage from the transformer is about 1.5kv

Sharp R-1480... | 83 views | 0 helpful votes

Take the unit out of the case.Posibly the OEM heat shroud missing.Can always lay a piece of silver insulation sheet on the top before putting back into case.

Sharp R-1480... | 28 views | 0 helpful votes

could be a bent or broken pin in the door - its a safty issue since microwaves are harmful when the door are not shut - return the microwave to the store you purchased it from or get a new one

Sharp R-1480... | 134 views | 0 helpful votes

Door switch is bad or a fuse blew out inside the microwave cover housing. Switch is most common.

Sharp R-1480... | 56 views | 0 helpful votes

If your model is Sharp R-1480, see the service manual here.

You can order Sharp parts from Encompass here.

Sharp R-1480... | 78 views | 0 helpful votes

Some of your story seems impossible. Closed doors do not cause anything. Aging capacitors can cause fuses to go. They also stabilize the magnetron. My bet is the capacitor blew. I have no idea why the fan doesn't work, once the cabinet is open it will become obvious.

Sharp R-1480... | 28 views | 0 helpful votes

It may be the fuse supplying the magnetron, or the magnetron itself which has failed. Another suspect is the high voltage capacitor in this circuit.

Don't try to fix this yourself as the internals of a microwave are dangerous, with high voltages even when unplugged.

Sharp R-1480... | 54 views | 0 helpful votes

test the following steps and fix it.use the VOM3eb53373-1eb1-4bb3-9641-1a202781b5bf.gif God bless you
1. No power to outlet (overload or fault in microwave or other appliance).
2. Blown main fuse - likely due to other problems.
3. Open thermal protector or thermal fuse.
4. Defective controller or its power supply.
5. Clock needs to be set before other functions will operate (some models).

Sharp R-1480... | 44 views | 0 helpful votes

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