20 Most Recent Whirlpool MH3184XP Microwave Oven Questions & Answers

1. Unplug microwave oven or disconnect power. 2. Open the microwave oven door. 3. Pry the choke cover away from the top door pin, and remove the top pin from the pivot bracket. Lift the door off the bottom bracket, and remove it. 4. Place the oven door front side down on a padded surface. 5. Remove the choke screws from the door frame. 6. Starting at the top right corner, pry the choke cover out with a putty knife, and unsnap it from the choke. Only remove the top, bottom and right sides of the choke cover at this time. You will remove the handle end of the choke cover later. 7. Starting at the top edge of the door near the center and working clockwise, use a putty knife, and pry the latching tabs of the choke out of the door frame slots. Lift the choke as you release the tabs so they do not snap back into the slots. NOTE: When you reach the handle side of door, pull both the choke and the choke cover away from the door frame, and then separate the two components. 8. To remove the door switch actuators from the choke, remove the screw from each actuator. REASSEMBLY NOTE: When you reinstall the door on the oven, insert the top pin into the pivot bracket and press down on the pin until it snaps into place Read more: http://www.appliancepartspros.com/whirlpool-microwave-door-handle-w10246505-ap4418092.html#qa1#ixzz2qpA2P5CA http://www.appliancepartspros.com

All units have an internal fuse. Of course the unit is still plugged in. Check in the cabinet above the microwave.

You must dismantle the circuit board and check if some grease vapours between touch buttons and the the circuit film. Clean with some wet soft cloth.

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Since the microwave is humming, that tells me that the diode is bad and needs to be replaced.

follow this test and fix it. God bless you

1. Inspect the power cord Unplug the power cord and check for voltage at the outlet. Also inspect for damage, shorts, or burn marks that can be a possible safety hazard.
2. Bad door switch If your microwave does not work at all and you know everything is plugged in properly and the outlet is functioning, then also check the door hooks and the door release button. Using a volt-ohm meter on RX1, check your terminals. When your microwave door is closed you should have a reading of zero. Once the door is open the reading should change to infinity. If these readings do not match up, replacement of the door switch is necessary.
3. Blown fuses To determine if your fuse has blown out, which may attribute to your microwave not running, you need to pull the fuse out using a pair of fuse pullers. Lay it down and using a volt-ohm meter on RX1, check both ends of the fuse in question. If you do not get a reading of zero, then you will need to replace the fuse.
4. Bad fan motor Locate the fan and remove the leads. Again using the volt-ohm meter on RX1, check the terminals. If an infinity reading is displayed, it means that the fan has gone bad and requires replacement.