Question about Panasonic NN-H664 Microwave Oven

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Microwave does not pwer up

The microwave will power on and after 3-4 uses, it does not power on again. Checked the breaker, ok as toaster/oven works on that switch. Put microwave on another outlet wiggled the power cord and door switch, it powered on then worked 3-4 times, no power again.

any suggestions please.
Thanks for the feedback

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  • Anonymous Mar 26, 2014

    Power windows on a 1999 mercury mountaineer go another switch console it doe;s the same the door lock worked on both but other switches do not
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Try change the fuse.

Posted on Aug 08, 2008

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Hotpoint rvm1625sj01 no power


Hello

Plug the microwave into the outlet if the microwave won't power up. Make sure the plugs on the microwave match the type of outlet. A four-pronged outlet can only be used with a four-pronged plug. Same with three-pronged outlets---they only work with three-pronged plugs.


Inspect the plug. Make sure it hasn't been cut or tampered with. Four-pronged plugs can't be cut down to fit a three-pronged outlet. Three-pronged plugs mustn't be forced into four-pronged outlets. A three-pronged plug mustn't be used in a two-pronged outlet, either.


Replace blown fuses, or if there's a circuit breaker, check it for tripped breakers. Sometimes the trip won't be obvious, so cycle the circuit breakers. Turn them all the way off and then back on again.


Plug another appliance in the outlet. You will find this easier with three-pronged appliances. Simply plug a toaster, or other appliance into the microwave's outlet, and see if it works. If it works, you know the problem is with the microwave, not the power circuit. Have the microwave serviced or replace it. If the toaster or other appliance doesn't turn on, you know the problem is with the circuit.

Oct 04, 2011 | Hotpoint RVM1625 Microwave Oven

1 Answer

Machine not turning on


1. Plug the microwave into the outlet if the microwave won't power up. Make sure the plugs on the microwave match the type of outlet. A four-pronged outlet can only be used with a four-pronged plug. Same with three-pronged outlets---they only work with three-pronged plugs.

2. Inspect the plug. Make sure it hasn't been cut or tampered with. Four-pronged plugs can't be cut down to fit a three-pronged outlet. Three-pronged plugs mustn't be forced into four-pronged outlets. A three-pronged plug mustn't be used in a two-pronged outlet, either.

3. Replace blown fuses, or if there's a circuit breaker, check it for tripped breakers. Sometimes the trip won't be obvious, so cycle the circuit breakers. Turn them all the way off and then back on again.

4. Plug another appliance in the outlet. You will find this easier with three-pronged appliances. Simply plug a toaster, or other appliance into the microwave's outlet, and see if it works. If it works, you know the problem is with the microwave, not the power circuit. Have the microwave serviced or replace it. If the toaster or other appliance doesn't turn on, you know the problem is with the circuit.
Hope i could help you.
Have a nice day : )

Sep 04, 2011 | Microwave Ovens

1 Answer

Microwave has no power when plunged in


1) Plug the microwave into the outlet if the microwave won't power up. Make sure the plugs on the microwave match the type of outlet. A four-pronged outlet can only be used with a four-pronged plug. Same with three-pronged outlets---they only work with three-pronged plugs.
2) Inspect the plug. Make sure it hasn't been cut or tampered with. Four-pronged plugs can't be cut down to fit a three-pronged outlet. Three-pronged plugs mustn't be forced into four-pronged outlets. A three-pronged plug mustn't be used in a two-pronged outlet, either.
3) Replace blown fuses, or if there's a circuit breaker, check it for tripped breakers. Sometimes the trip won't be obvious, so cycle the circuit breakers. Turn them all the way off and then back on again.
4) Plug another appliance in the outlet. You will find this easier with three-pronged appliances. Simply plug a toaster, or other appliance into the microwave's outlet, and see if it works. If it works, you know the problem is with the microwave, not the power circuit. Have the microwave serviced or replace it. If the toaster or other appliance doesn't turn on, you know the problem is with the circuit.

Apr 04, 2011 | Maytag Microwave Ovens

3 Answers

Built-in Sharp Carousel II Microwave Convection Oven died.


There are a couple of safety thermostats in the oven to shut down power if something overheats. One is on the magnetron tube (the microwave source), the other is on the cooking cavity. These sometimes go bad. There's also a power line fuse that may have failed, or become loose in its mounting clips. These can be tested with an ohmmeter; they should all measure very close to zero ohms if they're good.

Another possibility is that the control circuit board in the oven may have failed. I have worked on several Sharp ovens where the power transformer for the board has gone bad for no good reason. If the board goes bad the oven may appear to be dead as well.

Microwave servicing is best left to professionals. If you're thinking of keeping this one, take it to a service shop (or call for home service) and get an estimate. Then decide whether to repair or replace.

Hope this has helped a little. Thanks for using Fixya!

Feb 02, 2010 | Sharp R-1874 Convection/Microwave Oven

1 Answer

I cant turn the microwave oven on without the fuse cutting out


If you got the interior of the unit wet you may just wait a couple of days for it to dry out and it will be ok again. You may also plug your microwave in to another outlet, one that still works when the fuse that blows is unscrewed.

Finally you have a 1000 watt microwave which translates to using 10 amps of power. If you have a 15 amp circuit, looking at the number on the fuse, and you have other things plugged into that circuit like a toaster, toaster oven, coffee pot, hair blow dryer, etc, you may simply have to unplug something else to provide your microwave with the power it needs. good luck.

Aug 16, 2009 | Daewoo KOC-925T Microwave Oven

1 Answer

It suddenly will not turn on. The breaker is ok. It is an M-170, about 11 years old.


Have you tried it in a different power outlet?
Or just try some thing else like a lamp or a toaster in that power outlet.

Have a look around the where the power cord goes in. Is there a fuse or something like that you can see?

Apart from that my advice for Microwave Ovens is "No User Serviceable Parts Inside" If you open it up and don't put it back together correctly you can cause yourself serious injury or death. Microwave repair people have a tool to check for microwave leaks after they put it back together. If you got 11 years out of it you have done OK

Treat yourself to a new one. :)

Aug 15, 2009 | Microwave Ovens

1 Answer

No power to Panasonic NN-S252 microwave oven


follow the incoming mains lead into the microwave their is a small pcb with a fuse their check this first

Nov 14, 2008 | Panasonic NN-S254BF Microwave Oven

1 Answer

Microwave oven blows breaker after 2-3 secs


make sure that your microwave is on its own circut breaker meaning nothing shares the plug

Mar 25, 2008 | GE JVM1650 1000 Watts Microwave Oven

2 Answers

GE Spacesaver microwave trips the circuit breaker


Since power = voltage X current, 1.58kW / 120VAC = 13.166A

So this unit should be fine on a 15A breaker unless the breaker is bad, the wiring or a connection is loose somewhere between the breaker and the microwave, or the microwave's magnetron or high voltage transformer are failing and drawing extra current.

Microwaves should really be on the own separate breaker if at all possible. Plus, the more a breaker trips, the more work out it gets.

Have you measured the voltage at the outlet? If that's off, current and power will be affected. It should be about 110-125VAC.

A good power test for outlet and wiring integrity is a toaster, toaster oven, or hair dryer rated at about 1500 watts.

If it doesn't run and heat steadily, then there may be a problem with the house wiring or breaker.

If it passes this test, the problem is likely in the microwave.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jan 09, 2008 | GE JVM1190 Microwave Oven

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