Microwave Massacre
(1983)

Roosevelt (Loren Schein) and Philip (Al Troupe) go over to Donald's (Jackie Vernon) house to get a ride to a wrestling match. However, they find him lying dead on the floor. They check the microwave and find many cut off human limbs. Philip flees in terror.

Several days later, a moving team removing the house's furniture, detects faulty wiring in the microwave, indicating that it was responsible for short circuiting Donald's pacemaker, causing his death. The camera then enters the garage and comes across the refrigerator, which opens, revealing Donald's wife May's disembodied head. Her eyes then glow red.

Thanks Julian!