Hotpoint Microwave Ovens - Recent Questions, Troubleshooting & Support

27 Litres

The fuse should be located on an input line filter board INSIDE the microwave. You will need to unplug and remove the outside case to get to it. Simply follow where the power cord comes in and you should see a fuse mounted on a small circuit board somewhere. This is the line filter. The fuse should be a 20 amp appliance fuse that you can purchase at any hardware store. DO NOT attempt to re-energize the oven with the cover removed. There are dangerous voltages present in the high voltage circuit (about 13,000 - 14,000 VAC). Put the outside case back on before trying an op test. Let me know if this helps.

The Emerson MW8999SB 0.9 cu. ft. 900 watt Microwave Oven is relatively compact, and certainly inexpensive, but doesn't skimp on functionality. We were surprised at all the options you get with this little microwave. It's only 20 inches wide, 11.3 inches high and 16.1 inches deep yet. The interior can still accommodate a regular size dinner plate or small (10-inch-square or round) casserole. Plus, there are 10 power levels, eight one-touch function buttons, six Express Cook settings, timed and automatic defrost options, and a rotating glass turntable to circulate the food for more even cooking.We were very pleased with the performance of the Emerson MW8999SB. It did a fine job heating water for tea, cooking a couple of baked potatoes, reheating leftovers and steaming fresh vegetables. Even the automatic defrost proved surprisingly efficient, letting you enter the weight of the item(s) to be defrosted (4-100 ounces) for easy operation. Chicken breasts were almost fully defrosted after one cycle. We needed to stop and separate the food pieces to finish the defrost cycle.The unit is styled mainly in black but has stainless steel trim around the door and control panel. The smooth touchpad control panel is attractive and easy to wipe clean. We loved the one-touch Express Cook buttons, which let you activate the unit at 100 percent power for 1-6 minutes, by pressing the corresponding number pad. We also appreciated extra touches such as the Start/+30 sec. button, which can be used to start the oven or add an extra 30 seconds each time it is depressed.It's hard to go wrong when the functions are so simple. The only tricky part was identifying certain codes used on the display screen. When changing the power level, for instance, PL10 is displayed on the screen. Pressing the button additional times lets you toggle through the different levels. Likewise, the Auto Cook settings may need to be pressed multiple times to obtain the correct weight or portion for the food being cooked.We were amazed that a machine costing so little also offered two-stage cooking, which lets you start cooking (or defrosting) on one setting and finish on another. All in all, the Emerson MW8999SB is an excellent value.Pros: Touchpad controls, eight one-touch function buttons, six Express Cook settings, two-stage coking optionCons: Limited interior capacity can only accommodate dishes up to 10 inches, no sensor

There is a chip that controls TOTAL operation of the microwave, sounds like it malfunctioned. It actually sound like the entire board has malfunctioned. good luck https://www.6ya.com/mrmmike

The main controller board, or one of the power supplies has failed and require to be replaced.

You should take the microwave oven in for an estimate. I strongly suggest to not service this type of appliance yourself unless you are trained and experienced in microwave oven service.

There are many safety issues when servicing microwave ovens.

Jerry G.

Many microwaves have similar issues. Usually, (not always) only the light is on and the fan is running, not the section that produces the microwaves. This problem can be caused by the door switches that are out of alignment or a defective control board.

The pads actually share some of the same lines inside the touch pad. There are silver oxide traces inside there. If a trace inside breaks, it depends on which trace breaks as to what pads dont work. If a trace that is common to say pads 1,3,5,7 you would lose function of those pads. 1.....2.....3.....4......5....... it is sort of set up like that inside wher eone connects to another and so on. So lets say a line between 2 and 3 breaks then you would lose pads 3, 4, 5 and any others on that same line. Will have to replace touch pad, cannot repair.

Most microwave diodes will work just fine from system to system. The most common ones I use are rated at 550ma. When you check your old diode what made you think it was bad? They are such a high rating you will not get a reading on it with a regular ohm meter. Mostly on HV rectifiers if it is not shorted ( Zero Ohms) it is probably good. If you have no high voltage then substitute it and see if you do get high voltage, then you know it was open. Follow the video and give it a try.

"F3" means you have a shorting membrane keypad. I regularly repair these controllers and details are here. If you have other questions, it's best to follow up with me directly. (FixYa does not notify us directly when follow-ups are posted, so we have to log in to the site to see them.) - William E. Miller, AS-EET [email protected] http://www.microwavecontrol.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

None to my knowledge, but common faults include keypad failure (may show error code "F3") and cooktop light failure, both of which can be affordably repaired. (See link below) For more free DIY and other help & advice, feel free to contact me via my site below. Please include FULL model number*, FCC ID number*, + detailed symptom information. ( * on the tag in cooking cavity or around door frame or control frame or on back) William E. Miller, AS-EET http://www.microwavecontrol.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

JX-81J is the microwave recirculating charcoal filter for several models of GE and Hotpoint microwaves. The installation instructions will be available from the manufacturer with the model number of the microwave itself. One microwave that uses this filter is the RVM1535MMSA . See http://products.geappliances.com/ApplProducts/Dispatcher?REQUEST=HPSPECPAGE&Sku=RVM1535MMSA#tab1_ for all of the details on this microwave. The owner's manual, http://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=39-40541-1.pdf , shows the installation of the filter on page 34. The guide for installing the microwave above the range is http://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=39-40425.pdf . If you have a different microwave, add a comment with that model number. I hope this helps. Cindy Wells

It may be a bad connection on the fuse holder, an intermittent fuse, a bad connection on one of the thermostats or elsewhere, or a bad connection on the control circuit board. If you want to contact me privately with the model number, I can give you or a friend free DIY troubleshooting help and I also do microwave control circuit board repairs. For more free DIY and other help and advice, feel free to contact me via my site. Always include your FULL model number*, FCC ID number*, and detailed symptom information. * from the tag in the cooking cavity or elsewhere on the oven (or send a clear photo of tag) William E. Miller, AS-EET http://www.microwavecontrol.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"