KitchenAid KOMS155M Microwave Troubleshooting
The KOMS155M is an older microwave sold in black and stainless as KOMS155MBL and KOMS155MSS. After this long, the control board is often the weakest link: it has spent its life near the cavity, absorbing heat and kitchen grease, and its solder joints and traces eventually give way.
When an oven does not respond, or acts strangely, we start by confirming that power reaches the board and that the door switches are reporting correctly. Then we study the board under light for darkened joints. Separately, we clean the cooling path, since a grease-coated fan will stop the oven mid-cycle even when the board is healthy. The waveguide cover and cavity walls round out the visit. We tell you honestly if the cost of a board approaches the value of the oven.
Price in writing before work starts, and a 30-day workmanship warranty on completed repairs.
It can be. We check the supply to the board and look for burned solder or damaged traces. If the board is the cause, we give you a written price and compare it against the age of the oven.
Overheating from a grease-covered fan path is a frequent reason. We clean it and run a timed load. If shutdowns continue, the control board is tested next.
No. A burn mark near the waveguide cover means arcing. We replace the cover, check the cavity wall, and test the oven before you use it again.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
