20 Most Recent Samsung SMH7178STD Microwave Oven - Page 8 Questions & Answers

First of all, if it's less than a year old, it will be under warranty and you should contact Samsung to cover the service. You can try the number in your manual or try samsung.com

There is a drive motor that opens and closes the vent fan door. It or an associated switch may have failed.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number (SMH7178STD) at http://www.wehaveparts.com

E4 normally indicates a problem with either the keypad or a sensor. Since the oven is resetting, it may be the keypad or even the control circuit board. Below is my info on keypads, which may help, followed by more info: You may also have a bad keypad, which in many cases can be replaced. KEYPAD TROUBLE A bad keypad may be worn out due to age, damaged, or it may have gotten wet or otherwise contaminated. Moisture and contamination can be caused by not using the fan when boiling on the stove top (for over the range models), direct spraying of cleaners, by storing the microwave in an unheated garage or shed, or infestation. I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller. Apply an alcohol-based cleaner (such as the purple kind) to a cloth (since paper towels can scratch) and gently wipe it off. I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics. DISCONNECTING AND CONNECTING THE KEYPAD 1. The keypad connection is the green or blue translucent plastic strip that plugs into a connector near the edge of the control circuit board. 3. There are two tiny tabs (one on each side) on the hood of the connector that you can gently pull up on to unlock the connector. Use equal and gentle fingertip force when pulling up. 4. The old keypad strip will lift out. 5. Put the new keypad strip in, making sure both sides are down fully. (If you are not installing a new keypad, clean yours with a pencil eraser or a soft cloth and alcohol.) 6. While holding the strip down, push the connector hood back down to lock it. -- If your keypad (membrane switch) is bad, you should be able to get one here: http://www.samsungparts.com/search/search.asp If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk If you still have questions, please post again.

There are many other components that can fail. A Samsung is worth getting professionally repaired. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

where did you buy it?

Judging from reviews of this model on Samsung's website, this is a common problem. Does it happen during or after using the cooktop or range below the microwave oven? In particular, is it most common when using the burner directly under the microwave oven control panel? If the issues are correlated to heat or humidity from cooking on the range top, I would suspect problems with moisture in the keypad circuitry. I would consider cleaning the controller board key panel connector area with 90%+ isopropyl alcohol (this is an internal service on a circuit board that is most likely susceptible to damage by static electricity, so it should be done by someone who knows how to service electronics). This should remove contaminants that could cause current leakage between keypad connections (spurious keypad entries) in humid conditions. Let the board dry thoroughly before reconnecting. It's also possible that moisture is getting into the keypad assembly. This would be a design/manufacturing flaw. I would guess the oven is out of warranty, so the fix would be to put the keypad in a dessicator for a day or so, then seal the edges with RTV Blue or a similar caulk that does not release acetic acid (vinegar) during the curing process. (Acetic acid even in vapor form may corrode the silver contact material in the keypad.) Do not seal the connector, just the edges of the flex ribbon layers where moisture can get into the key membranes. In the meantime, always use the microwave oven fan when cooking on the range. This will help to keep the controller cool and dry. (Samsung's troubleshooting guide says the fan will turn on automatically if the microwave oven gets too warm from cooking underneath it.)

It sounds like you are having difficulty with the bottom switch on your Samsung Model GE0103MB microwave not engaging with the door release button. This can prevent the microwave from functioning properly and could be caused by a few different issues:

1. Make sure that the switch is properly connected to the door release button. The switch may have been installed incorrectly during the repair process, which could prevent it from engaging properly.
2. Check the door release button to ensure that it is not damaged or malfunctioning. The door release button could be preventing the switch from engaging properly.
3. Check the wiring connections to the switch and door release button to ensure that they are secure and not damaged.
4. If you are having difficulty assembling the microwave, I suggest you to try and get the service manual or a diagram of the assembly process for your specific model GE0103MB. You can try searching for it online or contacting Samsung customer service, as they may be able to provide you with the information you need.
5. If the problem persists, you may want to contact a qualified technician to service the microwave and inspect the door switch and door release button.

It's important to note that working on a microwave oven can be dangerous and should only be attempted by someone who is familiar with the inner workings of the device, and have the proper tools and equipment.

Now you know why they were selling it, it doesn't work and needs dealer service! https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

It will be fine. They aren't made for sustained cooking on high power. Popcorn is dry but oiled, so it gets very hot and burns. You can use the glass carousel plate or replace it. Depending how big the crack is, any water in the crack will finish it off. A new glass tray is $57. A new Microwave the same is $319. Samsung are one of the better makes. https://www.google.com/search?q=samsung+me18h704sfs+replacement+glass+plate ..

Nc means theres most likely an inverter fault inside the oven. This can be repaired cheap. Contact me for info.

Yes Lori, professional repair. Why? https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

The small plastic plate on the microwaves door with the spring it it needs to be replaced.

E-32 error means you have a wiring or circuit board short. Easier or cheaper to replace without a lot of aggrevation.

At 12 years old, time for a new control panel.

Switch it off from the wall for a few seconds , then witch it back on and set the clock , this should reset it , if not contact a service man .

TRY A DEALER

Contact Samsung directly to request the manual or do an online search.

1. Damaged or defective door interlock 2. Defective control board

Either the display or the control board could be at fault.

It is prompting you to close the door, but if the door is closed already, the code may be an indication that the door interlock or associated wiring is at fault.

Request the manual directly from Samsung.