GH4155XPB1 Whirlpool Microwave - Instructions

Slide grease filter about 1/2 inch to right (or left) using the d-ring attached to one side and then pull down and out. Push charcoal filter frame slightly to rear and pry down from front. Install new charcoal and grease filters by reversing process. No tools - 5-minutes max!!

I slid the new grill into position and secured it with the original two screws. Could not have been easier.

No repair- just replaced glass turntable.
Right part I needed with first try

I just removed the multiple screws which held the hood cover on. I then attempted to remove the light bulbs from the socket. This proved impossible because the bulbs were so fragile from the heat and grease build up. To make this task much easier and probably safer, just replace the bulb housing and light bulb. The bulb housing unplugs very easily. Just replace it then screw your new bulb in. P.S. Be sure to unplug appliance before you start.

The filters are very easy to replace. No tools needed.

Hope this helps.

The nightmare was that this microwave is installed under the cabinet....in order to get to the light bulb I had to pull out my stove then squeeze into the space between the stove and counter....my old microwave light bult was much easier to change.....Shame on Whirlpool for making this so difficult.....must be a better way to cover the light bulb so that we do not need a screwdriver to remove the door to get to the light bulb

Our Microwave Vent Grill was broken - and since I was ordering online, I figured I'd get the two filters as well. The Vent Grill was fairly easy to install. It was a little tricky getting it to fit in, but once in, it was just a matter of screwing in at the top.

The Filters were another matter. The FILTR-GRSE came out very easy, but what I didn't realize was when I ordered it, it only came in packs of 1. The Charcoal Air Filter came in packs of 2, so I assumed both did. Why, when you need two of each of these, do they sell one in single packages - and the other in packs of two? The Charcoal Air Filters were only replaceable by unscrewing the bottom of the microwave. The FILTR-GRSE were easy enough to just pop out.

Overall, not that bad of an install.

The trick is to align the bottom and top tabs first. This take a little coaxing and patience, but once these snap in, the tabs with the threads line up perfectly.

TIP: Thread the screws into the metal tabs while supporting the tabs with your hand BEFORE installing the grille, back them out, and then install. The threads were a little tight, and putting a lot of pressure on them while the tabs are in the slots risks breaking them off.

Removed old grease screens by sliding sideways and then pulling out of the grooves. (helps to have rubber gloves as the grease is slippery). Put pressure on the back of the charcoal filter rim and allow side closest to you to drop down slightly so you can get a fine flatblade screwdriver under and pop the filter out of the holder. Works same on both sides. Install new charcoal filters after cleaning the holder edges with soap and water and drying. Make sure charcoal filter is in the second set of holder grooves and snap in place. Replace new grease filters with the pull tabs down and facing the center. Slide the grease filter into the holder grooves a little further back than normal and (using the pull tabs) pull the filter back the other way until flush with the opening and in place. The top exit ports are removed by taking out 4 screws;however, two of them are attached to spring clips on the underside and it is easy to break off the tiny plastic ridges underneath. The other screws come out easily and the entire exit port piece can be removed and cleaned. To reinstall just snap exit port back in place and replace screws. If you have broken off the slender plastic ridges you can sometimes turn the screww a partial turn and engage what is left; if not you may have to put some rubber grommets or pieces to support the bottom and keep pressure on the exit port piece which is not locked by only two screws.

this problem started two months ago when my micro quit heating up, after all the research most agreed it was the magnetron. taking the micowave apart is not to difficult just make sure you bag all the screws accordingly. the high voltage area is on the right hand side behind a panel. caution there is a capacitor that will bite if your not careful, need to short the circuit between the two connectors with an insulated screw driver it will make a small pop or let it sit for awhile and it will discharge by itself. The magnetron worked for two days then quit, after more research i took it apart again and tightened up all the connections. Worked great on the bench but when i got it back up on the cabinet two dayslater kaput again. so again i take it down and replaced the two cheapest parts in the high voltage system, magnetron thermst fix, and h.v diode. benched tested it this time for 3 days cooking anything that i could think of, worked great. its been one week now afer installtion and it is still working.

The repair was simple and easy. It required a Phillips head screw driver only. I Removed the vent grill and replaced it with the new grill there were only two screws that needed to be removed then refastened. Total five minutes. I also replaced the grease filters which took about a minute total time. I do many of my own repairs to my home and appliances .I've found your service parts delivery prompt and precise.

Repair part delivered only a few days after purchasing on-line. The replacement part was the exact same as that on the original unit. Installation took about 1 minute involving 2 screws. Ordering was very easy.

This is a highly recommended parts store.

Removed 1 screw, removed "burnt out" bulb and replaced it with new bulb.

My microwave began suddenly making a loud harsh humming noise while cooking food. I did not let it go on long enough to know if it cooked the food or not. I did some Internet research and learned that it was likely the Magnetron. The test for this was to run the microwave for at least a minute on the lowest power setting and see if the noise cycled on and off. It did, so I (actually, my wife) ordered the part from partselect.com using the model number. I was successful in replacing the part, and we are back to microwave popcorn and quick defrost for a price that was less than a service call, however, it was time consuming, required a large work area, and access to 5 out of 6 sides of the unit. So proceed at your own discretion

Caution:

The first thing in every set of repair instructions was to discharge (short-circuit) the capacitor, as it may store large (as in lethal) amounts of electricity even when it is not connected to a power source. I had never done this, but found these instructions:

“Discharging your microwave's capacitor is absolutely essential in preventing injury to your microwave, your tools, and yourself. A capacitor stores a large amount of electricity even when your microwave is unplugged, and it must be discharged before beginning any repair.
A capacitor is discharged by creating a short circuit between each of the two capacitor terminals, and between each terminal and the chassis. The chassis is the metal mounting (bare metal surface) of the capacitor. Read these directions thoroughly before you proceed.
With your microwave unit unplugged, touch the blade of a well insulated screwdriver to one terminal. Gently slide the screwdriver forward until it reaches the other terminal, holding it there for a few seconds. Be aware that this often results in a loud and startling 'POP'.
Repeat this procedure in order to create a short circuit between each capacitor terminal and the chassis (bare metal mounting plate surface). This same method can be applied to a capacitor having three, and not two, terminals.”
I had not run my microwave in over a week, and then while my part was shipping, left my microwave 'unplugged' for more than two days, and my capacitor apparently discharged itself, although I did go through the above procedure carefully and completely - just in case.
Step-By-Step:
1. You must remove your microwave from the cabinets - it is impossible to repair otherwise. This is best accomplished with 2 strong people - my wife and I made it work, but wished for another guy.
a. While supporting the microwave, remove the two screws coming down through the cabinet above.
b. Lift the rear of the microwave as much as possible, then tilt the front down - there is a clip high on the left side, as well as the hinge/clips on the bottom.
c. If you do not lift it off the wall all at once, you may have to lift the rear even farther to remove it from the hinge/clips on the bottom.
Important Note: Always beware of the microwave door, if it is bent or broken and cannot retain a seal, the microwave not function as a safety feature to keep from releasing microwaves.
2. Remove the vent cover on the top/front of the microwave - be careful, it's plastic.
3. Remove the vent cover and light panel on the bottom of the microwave - this is several screws and some simple wire clips.
4. Remove the "shell" (top and sides) of the microwave - this is several more screws on the back. Make sure to remove the plate that is holding the cord in place on the top.
5. Remove the interface panel by the screws on the top (which had been hidden by the vent cover) - the wires can remain attached, just slide it aside.
6. Remove the metal cover on the right side at the rear; this will expose the Magnetron and the Capacitor. Remember to immediately test and discharge the capacitor!

7. After you discharge the capacitor, remove the other cover plate and the support bracket - in case you haven't noticed, this is a time and space consuming operation.

8. You

I dropped the grease filters ( two under the unit) and then removed the dirty charcoal filters. The new charcoal filters were then snapped into place and the washed grease filters were then put back. The entire job took about. 5 minutes. No tools needed.

PartSelect had the turntable I needed at the best price. Ordering was easy, but best of all, the part was delivered next day. I was able to insert the new turntable plate into the microwave and it was good as new.