This was an expensive Maytag over the stove type unit. Removal was easy, just two screws allow it to tip forward and then lift off the wall bracket. 14 screws around the outer shell and it lifts off to expose everything. Basic meter checks show the capacitor, diode, transformer, fuses all good. The ohm meter checks on the magnetron did not clearly show it to be bad, but with the only problem of not making things hot, it was the most likely problem. Ordered the magnetron and diode, very simple to replace. This only takes 2 screws and plug in connectors. There is a big capacitor, so short it out first to protect from shocks. Put it all back together and for about 20% of the price of a new microwave i had it fixed. Exact replacement parts and an easy to use website makes this place my number one appliance parts choice.