20 Most Recent Frigidaire FMV156DC Microwave Oven - Page 8 Questions & Answers

Normal procedure is to remove case cover to access the bulb.

Usually several screws on the back and some partially hidden on the front to remove. Sometimes the screws require a Torx screwdriver.

Unplug unit and avoid touching any wires.

Replace bulb with exact type.

3M 7447 pads get at auto parts store or more aggressive 180 grit sandpaper going with the grain of course. For daily cleaning use DeBruce Polish, it is non-toxic and odorless. DeBruce polish is also non-abrasive, also use DeBruce Polish on glass/ceramic cook tops. We get DeBruce Polish at debrucepolish.com

The job of the monitor switch is to prevent the oven from cooking while the door is open.

If there is a problem with the door switches or door switch alignment that could allow that to happen, the monitor switch stands ready like a crowbar to ensure that the fuse and/or house circuit breaker will blow to interrupt power to the oven.

The service manual for this oven is here.

Since you're asking, I would bet you have an issue with your door switch or door switch mount, such as:

- the oven will count down but not actually start cooking when you press "Start". This is almost always a bad primary interlock (bottom door switch in this model).

- the fuse or breaker blows when you open or close the door. This is probably a sticky door switch or loose or broken door switch mount.

See http://www.microwavedisplay.com/safety.txt , http://www.microwavedisplay.com/disassembly.txt and http://www.microwavedisplay.com/doorsw.txt

If you need more help, feel free to contact me directly with your brand, full model number and symptoms for free DIY tips, etc.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
[email protected]
http://www.microwavedisplay.com

This is a problem associated with the magnetron. Either the power supply (transformer, diode, capacitor) or the magnetron itself. UNPLUG, remove cover, check for burn marks, a blown fuse, and test all components. Likely you have a bad magnetron (test for low resistance lead to lead, infinite either lead to ground). I found a new magnetron, removed from freight damaged oven, online for about $40. Mine is a built in which would cost $300+ to replace, so it was worth fixing. I hope this helps you.

this may not be the switch its self but its physical position in relation to the door acuator. either the switch needs adjustment or the door actuator or door itself. recommend certifed engineer advise on this problem.

warning: mircowave is a high energy, if doors are not seated correcly then energy may leak past door shielding and cause injury.

Your magnitron tube is out (it makes the micro waves) If you are handy you can switch it out for around 100-150, go to marcone.co to get the new mag tube

We have a similar problem! It sounds like a problem with the microswitch inside the unit that the door is suppose to engage when closed. If not engaged properly, it will not cook. We had the switch replaced last March but it has started acting up again. We can press in on the door and/or lift it slightly and it will cook. Try putting time on the counter and hit start. It the word "cook" appears then try moving the door slightly and see if the turntable starts turning. If not, then you may have a more serious problem. Good luck!

please dont even try this, fix it yourself job!!! yes it is an easy fix!! if you know what you are doing,, but if you dont know what you are doing,,,, well to be blunt,
you could just be finding a fast way of killing yourself!
even with the power plug pulled out the wall scocket and stood on a rubber mat!!! just one tuch across the capacitor and you could very well grow wings!!!!!!!!!!!!!!
do you realy wont to die??? call the guy back to fit a new micro switch in the door lock as its set back deep in side the unit and its a cheep part as well
but just like all fixes,,, its not the parts you pay for,
its knowing how to fit them in that costs you so much
this not knowing could cost you your life???????
play it safe,, please,,

change magnatron

Check the wiring at the connection box.Make sure no bare wires are exposed.If this is not the problem I would contact the Mfg. for warranty repairs

HELLO THERE:
I BELIEVE THAT YOU ARE RIGHT ABOUT THE FUSE.
If you remove the cover
This is done by by removing the screws in the back that are attached to the cover and than remove the screws on the bottom that hold on the cover .
You will be able to slide the cover off the back this may take a little bit of pressure and help with a flattip screwdriver.
once the cover is off look towards the front on the side and you will see a circuit board and on this board is the fuse,
Simply replace the fuse and than you can test the unit with the cover off if it works great, now just replace the cover and you are done.
If not you will have to have the circuit board serviced or replaced ok?
this should take care of the problem ok i surley hope that this has helped you ok?
Best regards Michael

The microswitch operated by the door catch will need to be repositioned by a serviceman. Do not remove the microwave cover yourself as they are potentially lethal even when not plugged in to a power source because of a large capacitor holding high voltage charge.

Microwave?

Generic advice follows.

Do you open the door while the machine is cooking? Do it a lot? For a long time (months)? Check your door safety interlock switches. The microswitches can not stand that type of abuse. I have personal knowledge on this. I try not to open the door until it stops, but it is hard usually to do that!!!

If you need more help, let me know.

a

Sounds to me like the door needs to be replaced.

You will need the following:
Polishing compound, jeweler's rouge or whitening toothpaste
Electric buffer
Lamb's wool buffing pad
2 ounces of ammonia
2 quarts of water
Rubber gloves
Safety goggles
Lint-free paper towels or cloth


Step 1:
Apply polishing or jeweler's rouge to a lambs wool buffing pad. You can either buff the scratch by hand using a circular motion or with an electric buffer on medium speed.

Step 2:
Wash the polishing compound, jeweler's rouge or whitening toothpaste off from time to time in order to check on the progress of the scratch removal.

Step 3:
Mix two ounces of ammonia with two quarts of water. You may want to be sure to hold your nose closed during this process! Also, always wear rubber gloves and safety goggles when working with ammonia.

Step 4:
Clean the glass surface with the ammonia water with a clean soft sponge.

Step 5:
Dry the glass with a lint free towel. If the scratches are not completely gone, they should at least be less apparent. If there is no significant difference, consider contacting a glass company to replace or rebuff the glass.

It needs to be replaced.

Underneath the microwave, on the right & left hand corner sides at the back, there are levers that you pull down & it releases the mounting bracket.

This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

Even though a door switch clicks, it may still be bad inside.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If the switch mount is broken, it's usually more economical and safer to add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.



At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

If you don't find yours, or if you want to look at it without disassembling the oven, you may be able to download it here.

If you only need a switch, you can order a universal type here for $5 postpaid.

NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly if you need more FREE help & do-it-yourself advice.

William E. Miller
[email protected]
http://www.microwavedisplay.com

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

All lights are operational. Model number is FMV156DBC.

could be a blown fuse in the HV transformer,Could be a defective thermal fuse, Which is all on the inside of the microwave. Be very careful if you try this repair very high voltage present