[saterry]

Suddenly, the burners on this cooktop quit heating. The fan works, the indicator lights come on, but the heating elements do not heat. Is a glass top, with 2 modules, and downdraft fan in the center. I called Maytag/Whirlpool, and they referred me to a repair center. On calling the repair center, they stated they don't service cooktops. But, they could print me a wiring diagram, and could sell me parts. WONDERFUL! Ok, upon looking at the schematic, all it shows are 4 infinite switches, a fan switch, 2 indicator lights, and a fan relay. I cannot imagine all 4 infinite switches going bad at the same time, I also cannot see both glass burner modules burning out at the same time. I have taken the unit apart, and seeing the fan relay as being the possible culprit, ordered a new one, and it did not solve the problem. When this happened, we used it the day prior, and all was ok. When trying to cook the next day, no heat. I mean nothing popped, or anything else happened, it just doesn't work anymore. The lady at Maytag had me turn off the breaker for one minute to reset it.. Ok, I don't see any micropressor, or anything to reset. However, I complied, and of course nothing happened. I have 2 full 120 legs of power coming to the unit. I am baffled. I have also seen a few more posts on this forum about this same type problem with Jenn Air, but nobody posted a solution. Any takers? Oh, all the wiring seems to be intact, and ok. For the amount of money this unit costs, it should work into the year 3000!

Scott scott@saterry.com

[feisty63]

seems like it should have some type of fuse to send power from the on buttons to each burner. of course you said its got power coming in but what control power to each burner which should be like a control center or knobs to turn on the burners. i know im not much help im just rambling on. check for pwer from the button out to the burner.

[saterry]

Originally Posted by feisty63

seems like it should have some type of fuse to send power from the on buttons to each burner. of course you said its got power coming in but what control power to each burner which should be like a control center or knobs to turn on the burners. i know im not much help im just rambling on. check for pwer from the button out to the burner.

See, this is the dilemna, what could possibly kill all 4 infinite switches at one time? There doesn't seem to be any kind of power control module prior to or after the infinite switches.

I will check to see what kind of power I have going to the burner modules at full on, and post that next. But if there is power there, that would mean the burner modules are bad, but both at the same time? What I do not know, is if there is any controls in the modules themselves. AND I do not know what power is supposed to be coming to the modules.. Again very baffling....

[feisty63]

i agree. maybe if there is a local appliance place in your area that sells parts maybe they can offer some insight as to what contols them is maybe something hidden not in plain sight. some repair places will tell you over the phone what is most common things to check other then what you have done. most smaller repair places will talk to a tech at one of those places. maybe a inline type fuseable wire or fuse who knows. granted if it has any type of fuse that should blow before the burners i would think. call them back and ask to speak to a technican i do that all the time when i want to find out things. you have to be on them to get info. Im not a technican of any kind but i have learn many things like that.

[saterry]

Originally Posted by saterry

See, this is the dilemna, what could possibly kill all 4 infinite switches at one time? There doesn't seem to be any kind of power control module prior to or after the infinite switches.

I will check to see what kind of power I have going to the burner modules at full on, and post that next. But if there is power there, that would mean the burner modules are bad, but both at the same time? What I do not know, is if there is any controls in the modules themselves. AND I do not know what power is supposed to be coming to the modules.. Again very baffling....

Each place where module plugs in has 4 plus ground by the looks. 1 is a shunt for the grill module. I am getting 120v on 3 from each ceramic module plug in. Is there a way to test the modules?

[feisty63]

Originally Posted by saterry

Each place where module plugs in has 4 plus ground by the looks. 1 is a shunt for the grill module. I am getting 120v on 3 from each ceramic module plug in. Is there a way to test the modules?

Im sorry but i don't work on them and i don't seem to be much help for you. i can only suggest things. maybe someone esle can help.

[saterry]

Originally Posted by feisty63

Im sorry but i don't work on them and i don't seem to be much help for you. i can only suggest things. maybe someone esle can help.

I found an old service manual online.. it gave the resistance values for testing the burner modules, and the modules I have fall within the correct values for the Ceran type burner that I have. NOW I am really stumped.. Got power to the modules, and the resistance for the burners is right.. Now what?

Cannot find the correct voltage values that is supposed to be reaching the burners. When turning the infinite switch from low to high the voltage does not change. I am assuming that a temp sensor in the burner completes the cycling process, might not be the case though.

[denman]

Just a quick question did you actually measure L1 to L2 for 240 volts.

I did see that you had 2 120 volt legs but this does not tell you that they are 180 degrees out of phase as you might see the same side fed back through a component.

[saterry]

Good point, will check that next, and see.. BRB Nope, no 240, see this is why I am not a technician. Should have checked that first.

[zoomer]

I had the same problem--glass stovetop was working before we went on vacation and turned off the breaker. When we returned home and turned the breaker on the digital display was working, and we could turn on the burners--the lights came on--but there was no heat. I tried flipping the breaker back and forth but nothing worked--at least at first.

I called my neighbor who works on appliances and he said that the digital control panel was getting 120 so that was why it was working, but the burners were not getting the full 220. So I flipped the breaker a couple of more times and it finally worked--the burners started getting heat.