Pcmassoc for Model Number SMH9187ST Samsung When cooking on high, the unit cuts out after about 15 seconds. Then a few seconds later, it resumes cooking as if nothing happened. Then again after about 15 seconds of more cooking, the same thing happens. Is this a problem with the thermo protector, or is the microwave generator on the way out?
Answer Hello pcmassoc. It is normal for the HV to kick in and out. This prevents the magnetron from overheating and damaging the unit. As long as the food is cooking properly then the unit should be fine. If not cooking properly then the AHV transformer may need to be replaced. Thank you. Read More... Answered by AppliancePartsPros.com | Thursday, February 8, 2018