JMHF730RBL00 Jenn-Air Microwave - Overview
Sections of the JMHF730RBL00
[Viewing 6 of 6]
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DIODE
PartSelect #: PS12584264
Manufacturer #: W11256462
This diode, or high voltage diode, is used in microwaves. It is an electrical current control device that ensures power flows in one direction and not the other way. If your microwave produces no heat...
$23.95
In Stock
R Ceramic Fuse 20 A
PartSelect #: PS17629444
Manufacturer #: W11707984
If your microwave is not turning on it could be due to your fuse needing to be replaced. This part protects the microwave by shutting it off if there is an electrical surge. This fuse is just over an ...
$32.95
In Stock
Microwave Damper
PartSelect #: PS11728088
Manufacturer #: W10843943
This damper is an authentic OEM replacement assembly used in microwave/range hood combos. It includes the damper door and frame. It is designed to direct the flow of air through the vent duct, and the...
$54.83
In Stock
Questions And Answers for JMHF730RBL00
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Common Symptoms of the JMHF730RBL00
[Viewing 4 of 4]No heat
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Won’t turn on
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Noisy
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Exhaust fan not working
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Microwave made very loud noise while on. No heat.
Unless you have a very comfortable background with electronics and electricity, I don't necessarily recommend taking apart a microwave. If you are very handy and are going to be VERY cautious to follow the rules of discharging caps and testing voltages before moving forward, then go for it. That said, I took the microwave off and apart.
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Not knowing where to find the parts, I was fortunate that the installer put the instruction book for the microwave inside the front vent slot above the touchpad for reference. it details the location of every part and it tells you very clearly what each part you test should show specific to this microwave on your multimeter. Find this guide online if you don't have it. Turn on the microwave for 20 seconds with a glass of water to make sure it's not heating - that with the noise means it's eeither the magnetron, cap, or diode. Read the notes on this site for all of the basic things to look for with the magnetron, diode, and capacitor. Once comfortable with the guide, locations of those devices, and how to test, then take it down and apart. Unfortunately, I didn't do all those things in that order, and it only wasted a lot of time trying to find the parts. Once I found the parts and put all the screws and covers back for all the areas that didn't need to be accessed for the repair, testing went quickly. The diode was bad. Ordered a new one and had it in 3 days or so. That means your microwave will be apart and sitting somewhere for a little while until you get the part and have time to repair it. Putting the diode back isn't too bad. Reassemble the microwave and put it back up again. If i had to do it again, it would take me 20 to 30 minutes once the microwave was down and on a table. Also, I used some bricks with towels over them or you could use some sawhorses to keep the microwave elevated so you can plug it in and run it after installing the new component. Again, make sure you discharge the cap before touching anything again even if you didn't run it, but just plugged it in.
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Parts Used:
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Sleiman from Miami, FL
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Difficulty Level:Easy
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Total Repair Time:More than 2 hours
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Tools:Pliers, Screw drivers
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Humming sound, not heating.
I turn off the income electricity by shutting down the corresponding circuit breaker. Then, I removed the control panel from the microwave which gave me access to the capacitor and adjacent diode. After that i unscrewed the defective diode and replaced it with the new one and BINGO!
Parts Used:
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Fausto from Miramar, FL
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Difficulty Level:Easy
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Total Repair Time:15 - 30 mins
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Tools:Nutdriver, Pliers, Screw drivers
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Microwave wouldn't turn on and found breaker been tripped and then microwave wouldn't turn on at all.
Read some instructions and easily found the fuse. Replaced it. Still didn't work. Took control panel off to check door switches. Nothing I read mentioned a second fuse. Tested and it to had blown. Ordered another one. Popped them in. Done.
Parts Used:
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Daniel from DECATUR, GA
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Difficulty Level:Easy
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Total Repair Time:30 - 60 mins
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Tools:Pliers, Screw drivers
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