Question about Whirlpool GT4175SPS Stainless Steel 1200 Watts Microwave Oven

2 Answers

Microwave does not heat

Our microwave is just 2 years old, a built in model. The timer counts down, the light comes on and the turntable turns but there is a raspy sound and the food does not get heated. We had just fixed a door problem 6 months back.

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  • Jason_Tori Jan 06, 2008

    Same problem. Had the microwave make a really loud buzzing noise when it wasn't even operated. Wife opened it up and noise went off. After that I tried using it, light was on, timer counted down, plate rotatted, and it made the loud buzzing noise but it did not heat. It apeared the noise was coming from behind the plastic cover but couldn't get it off.

    Did either of you have it fixed? What was wrong? How much did it cost???

  • micfra2002 Apr 28, 2008

    I have the exact same problem, only this is the second time in 2 years! Whirlpool will not do anything and A&E service company (it was under warranty the first time this happened) charged Whirlpool $478 for parts and labor. Now it is not under warranty and I don' tknow what to do. Help! I smelled burning plastic this time and then it quit heating. Turntable works, lights come on, but it doesn't heat. A&E replaced the tranformer, mangetron and wire valve last time. They're coming out tomorrow to look at it. I'm really ticked I'm having to pay for a recurring problem. If it's $478 agian I'll go buy a new one --- NOT WHIRLPOOL ;)

  • Anonymous Jan 14, 2009

    Just stopped heating food. Timer works, light works, carousel works and it appears to be functioning properly except it does NOT heat food.

  • jndurban Feb 08, 2009

    The microwave stopped working in the middle ofcooking my food. The light is on the counter is counting down and the turntable is working but it is not making any sound or cooking the food. Help we can't afford this problem right now!!!



2 Answers

Just had the same experience with the identical model. Removed the cover (a challenge because of the security screws), revealing valuable troubleshooting directions intended for an experienced technician. However, I think the info is well within the reach of a typical DIY person, does not require any dangerous power-on conditions. However, make sure that you discharge the HV capacitor before trouble shooting. In my case, it appears that the HV diode is open, have ordered a replacement on the internet for $3.18, easy to replace. Hope it works. Good luck.

Posted on Jul 14, 2007


If you don't have electronic experience is to dangerus, you will needs a Technician to chek: If 110 volts sypplying the big transformer, if yes check the output of this transformer, if have high voltage the transformer is good, then have to check: Magnetron, high vontage diode and big capacitor. I'm sorry this is not easy to no experience person. I'm sorrry for my English not so good. I hop you solver ou problem.

Posted on Jun 25, 2007


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