KitchenAid KHMS155L Microwave Oven - Answered Questions & Fixed issues

It's not possible to reset it. You have a failing membrane keypad, and the only solution is to replace the keypad.Since you didn't post the full model number with suffix, I can't give you a step-by-step answer, but I should be able to cover it all for you.On some models, you order just the keypad itself. I have uploaded a handy guide with pictures showing you what's typically involved.On other models, you order the control panel frame assembly, which comes with a new keypad already mounted on it. This costs more, but it's much easier.There is a YouTube video here showing how to remove a typical over the range control panel assembly in under 5 minutes. Then carefully detach the membrane keypad strip: Some connectors have a lock. Then you remove your board (carefully since the display is made of glass) then place your board in the new frame.You can find links to helpful exploded view diagrams and part ordering help here. I recommend that you bookmark that link to your favorites.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

sounds like you have a carbon build up on the supports if food residue builds up it drys and turns to carbon and the microwaves arch on the carbon give them a good clean and see if that helps in you need to replace them you would need to contact kitchen aid for the parts hope this helps

Yes! the whole keypad control board will need to be replaced.

Hello,Investigate these three areas if your microwave won't heatPower DiodeA diode is an electronic component that readily passes current in one direction only and blocks the flow of current in the opposing direction. If your microwave's diode has become defective, your microwave will not heat. Test the diode to determine if this is the cause of your problem. Replace it if it is defective.Testing a diodeNOTE: Before you test your diode, make sure your microwave is unplugged, and that you discharge the microwave's capacitor.Whether it is shorted or open, a defective diode will most likely show some sign of defect. Defective diodes will usually emit an electrical burning smell, signifying its defectiveness. Also, it may have split in two, or it may exhibit a burned crack, or possibly even a blistered spot.A shorted diode is indicated by a loud humming noise from the high voltage transformer, and no heat produced when a cook cycle is initiated. Whereas little or no heat produced in your microwave, with an absence of a humming noise is indicative of an open diode. In either case, the diode has to be replaced.With your microwave unplugged, and your capacitor discharged, use extreme caution to remove the lead that leads to the capacitor. You can leave the ground connection attached. The side of the diode that goes to the ground is usually marked with a dot, stripe, or arrow. Set your ohmmeter to R x 10,000 or higher. Touch the positive meter probe to the anode and the negative meter probe to the cathode to measure the resistance across the diode terminals. Remember that the cathode is on the side that goes to the ground, which is often marked by a dot, stripe, or an arrow.A normal diode, that is a non-defective diode, will read anywhere from 50,000 to 200,000 ohms. Differences in microwave make and model account for this large range in resistance readings.Reverse the meter probes and measure resistance while touching the positive probe to the cathode and the negative probe to the anode. Reversing the probes like this should result in a reading of infinity. Unless a bleeder resistor is present. The presence of a bleeder resistor would produce a reading of the value of the resistor.High Voltage CapacitorA capacitor is an electrical device which stores electricity. A defective capacitor may be why your microwave is not heating. The capacitor will have to be tested to determine if this is the cause of your problem. A defective capacitor will have to be replaced before your microwave will work again. Make sure you discharge the capacitor before you test it, though.MagnetronA defective magnetron is the third possible cause of why your microwave is not heating. Test your microwave's magnetron. Replace it if it is defective.Testing a magnetronNOTE: Before you test this component, make sure your microwave is unplugged, and that you have discharged the capacitor.There are two tests to conduct in order to determine whether or not a magnetron has become defective. If you receive results other than what are detailed below, you will have to replace your microwave's magnetron. Each test is described for you here:TEST 1: Locate your magnetron and label each of the wires attached to it so that you know which wires are to be replaced where. Set your ohmmeter to the lowest resistance scale. Take a resistance measurement between each of the magnetron's terminals by touching each probe to one terminal each. Reverse the probes and take a second resistance measurement. Each measurement should read less than one ohm.TEST 2: Set your ohmmeter to its highest resistance scale. Touch one of the meter's probes to a magnetron terminal. Touch the other probe to the metal magnetron housing. Take special caution to not touch the two probes together. This could result in an inaccurate reading. This test should produce a reading of infinity - indicating an open circuit.Read the tips on the below links on how to replace your microwave oven's diode and how to discharge the capacitor.http://www.fixya.com/support/r7088355-replace_microwave_ovens_diodehttp://www.fixya.com/support/r7088317-discharge_microwave_ovens_capacitorI hope the above is helpful.Regards.

Possible fault with the customer touch pad or the controls. Sometimes this is caused by insect secretion - cockroaches- which can make the controller processor board act with such erractic behaviour.Try to remove the power, remove cover and remove the main controller board and control pad to be washed, cleaned and reset. take care of the strip connection and wires.

You can download Whirlpool / Kitchenaid owner's manuals and installation instructions here.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Since you didn't mention the brand or model number, I have to be kind of general. If your oven has a child lock, your owner's manual will tell you how to turn that on and off. If for some reason you don't still have yours, you can download GE owner's manuals and installation instructions here. You can download owner's manuals and installation instructions for several brands (including Amana, Jenn-Air, Kitchenaid, Litton, Maytag, Roper, Tappan, Thermador and Whirlpool) here. You can download Frigidaire owner's manuals and installation instructions here. You can download Samsung manuals here. You can find links to other brands and find helpful exploded view diagrams and part ordering help here. I recommend that you bookmark that link to your favorites. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

If all buttons don't work then check that connection isn't broke through the I/O board.
If not then board is faulty.
Is you display is lightining or not.
if not then the connction is bad

thanks
please rate my work

Hi clayvette,

If your microwave oven does not heat, it is often caused by the thermal (internal) fuse. This is one of the most common problem for the oven not to work. Here are additional troubleshooting tips that you may apply to figure out what is wrong with your unit.

1. Check for any blown fuse.

2. If it does make a humming or buzzing noise as it trys to heat, the control board is bad and the relays on the back is what your hearing.

3. Check the door switch. The door switch is activated by the latch. If it is broken the switch will not allow the oven to work.

4. If the unit runs but is buzzing very loudly, then you have problems with the magnetron, the high voltage capacitor, or the power diode.

Hope it helps.

Thank you for using FixYa.

F2 on a Kitchenaid means you have a shorted membrane keypad.It's not uncommon for it to be intermittent or partially operable.

On these models, the membrane keypad is not available as a separate part, so you would have to order the control panel frame assembly which comes with a new keypad.

In this case, you simply move your circuit board into the new frame. That is a simple do-it-yourself job.

You can find helpful exploded view diagrams and order parts by entering your full model number (with suffix) from the tag on the oven here.

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.

Then you unplug the keypad (as per the photo below) and move the circuit board into your frame.

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



Some connectors on the relays may have a lock:

Could you please confirm the Model No is correct?

The KitchenAid KHMS155L is fitted with simple Micro Switches having a Common, Normally Open & Nomally Closed Contact. The 2 wires to these switches should be on the Common & Normally Open Contacts.

Microwave beeps and display shows inch? we are assuming that you are talking about some fault code. Send us additional details please.

Hello,
To perform this task, you will be needing: Screwdriver, 10-12 butter knives, putty knives or plastic wedges, and Replacement handle.
Remove the screws on the side of the door that help hold the handle in place. There are eight hooks on the top and bottom and four hooks on the hinged part of the door that keep the front and back of the microwave door together.

Pry the first hook out of the hole and slide a butter knife, putty knife or plastic wedge in the space to keep from the hook going back into place. Do this with all the hooks.

Apply some pressure to the knives and the front of the door will come off. Remove the damaged handle and replace with the new one. Snap the front of the door back into place and tighten the screws on the side of the handle.

I hope you found the above helpful. If you don't please let me know for further directions.
Regards.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101 ';
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I do not think you will find directions for this task. Microwaves are not intended to be user serviceable...But, you just need to take the door apart in an orderly fashion, and force nothing.

F2 means you have a shorted membrane keypad.

On this model, the membrane keypad is not available as a separate part, so you would have to order the control panel frame assembly which comes with a new keypad.

In this case, you simply move your circuit board into the new frame. That is a simple do-it-yourself job.

You can get it the Pros here by entering your full model number with suffix.

You can also find helpful exploded view diagrams to locate the part at that link.

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.

Then you unplug the keypad (as per the photo below) and move the circuit board into your frame.

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



Some connectors on the relays may have a lock:

Hi,

The buzzing is caused because the Magnetron is not working....

Working on Microwaves is not a DIY project, as there are very dangerous high voltages present.

Here is a tip that will help also you to figure out what is wrong with your Microwave Oven....Microwave Oven Basic Troubleshooting Tipsheatman101

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Hi, F3H mean that Humidity Sensor Failure. You have to refer to the Tech Sheet and test the sensor.

First of all, here is a direct link to the ONLINE USER'S MANUAL for that model:

http://www.kitchenaid.ca/assets/pdfs/literature/Use%20and%20Care%20Guide%20-%208184950.pdf


To view the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual.

You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there.

See page 15 of the ONLINE USER'S MANUAL for detailed instructions and illustrations on how to clean the microwave and the remove the filters.

If the above manual is not the correct one, check the following link for your model on the list.

http://shared.whirlpoolcorp.com/product_literature/search_results.jsp?searchTerm=KHMS155&siteCd=KA_EN_CA&userType=Consumer

Please comment back here to this page if you have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.

If this was at all helpful please click on the 4 Thumbs Up helpfulness rating icon you see on this page.

Thank you very much and good luck.

Joe.