I'm having problems with the door switches on my R-1480
I originally had one switch go bad, which I replaced. The micro has been working for about 9 months now, but the other day I had another problem.
The micro would turn the light on if the door was open and run the fan, and when you closed it the light would go out, when you put in a time and hit start, it would just click and wouldn't start.
I've tried replacing the switches, and now the light stays on all the time, and the fan does not start. My repair shop only had the D3V-16G-1C25 switches to buy, even though two switches were V-16G-3C25. Would this change in switch # affect the operation of the micro?
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Most microwave ovens have up to 4 micro switches in the door latch, it's a safety interlock. These can go bad, and cause the oven to not function.
Micro switches are pretty inexpensive, and can be replaced. You need to open the oven, and then identify exactly which micro switches you need. Both my current microwave ovens have done this, and I've replaced the bad switches. They work fine now.
Most likely you have an interlock microswitch problem or a latch problem. as you just open or just close the door VERY slowly listen for 3 distinct clicks one for each of the 3 interlocks. Two you will hear as you press the door open button and the last one you will hear as the door just opens or closes. If you do NOT have 3 clicks you have a bad micro-switch.
The micro-switches you can purchase on line here: http://www.repairclinic.com/Sharp-Microwave-Switch-Parts
I think you just have a simple micro-switch problem. However... if the latch assembly that holds the switch is cracked or broken it will have to be replaced. I have seen the plastic latch assembly fail causing the switch not to work properly.
This happens because of a bad door switch . The plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door .
Check also the turntable . It could be out of it's right place .
1:Don't slam your microwave door because this may cause the fuse to blow and this is the reason of bad door switch problem . 2: A microwave is capable of giving you a serious electrical shock even when it's unplugged , so I recommend you to call a repair technician for help .
Q - The microwave display counts down and the inside light is on, but nothing is heating and the fan is not running. A - This most commonly is abad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common. Q - My microwave is running and sounds like it is working but will not heat up anything. A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay..... Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food? A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.