We installed the MVEL2125F microwave oven over our LG4113ST gas stove. Whenever we turn on the vent, even at low speed, the stove's flames dance wildly and the temperature of the cooking vessel and its contents (as measured by an infrared thermometer) significantly lowers, and even water ceases to boil. We have tried to use pots and pans of different sizes, even a large paella pan, and the result is the same: drastically lowered temperatures, flickering flames,  and unsatisfactory cooking/heating. Nothing that we try by way of positioning etc. works, We very much like the unit otherwise, but the inability to use the vent while cooking on the stove top is a serious drawback.

We have sent in a repair request on 8/5, but as of yet we have not received a reply