The symptoms - on hi it would run for a couple of seconds then shut off
with the error code f7. on a lower power setting it would run but
not heat. i had a friend look at it on sat and he said it was an open hi temp sensor. i took the part to an appliance parts store and they looked it up and said it was a thermostat, i should be able to pick it up on monday after work. dave
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Inspect the power cordUnplug
the power cord and check for voltage at the outlet. Also inspect for
damage, shorts, or burn marks that can be a possible safety hazard.
Bad door switchIf your
microwave does not work at all and you know everything is plugged in
properly and the outlet is functioning, then also check the door hooks
and the door release button. Using a volt-ohm meter on RX1, check your
terminals. When your microwave door is closed you should have a reading
of zero. Once the door is open the reading should change to infinity. If
these readings do not match up, replacement of the door switch is
Blown fusesTo determine
if your fuse has blown out, which may attribute to your microwave not
running, you need to pull the fuse out using a pair of fuse pullers. Lay
it down and using a volt-ohm meter on RX1, check both ends of the fuse
in question. If you do not get a reading of zero, then you will need to
replace the fuse.
Bad fan motorLocate the
fan and remove the leads. Again using the volt-ohm meter on RX1, check
the terminals. If an infinity reading is displayed, it means that the
fan has gone bad and requires replacement.
this type of code normally mean Control Board Problem. You must call to the profesional repairmain. However you can do the following :
Enter the Service Test Mode as
1. Open door.
2. Press DELETE.
3. Press pads 1, 3, 5, 7.
4. Close door.
5. Press DELETE within 15 seconds (Pressing
RESET at any time will cancel the Service Test)
This error code F7 on KitchenAid microwave is about a function key that is stuck on ERC. You will have to Replace control board (also called ERC or clock) to fix the problem. In case you will have to buy a replacement part you may contact Sears for the replacement part at 1-800-252-1698; M-F 6:30 AM-10:30 PM - Sat 7:00 AM-9:30 PM - Sun 7:30 AM-9:30 PM - All times Central.
It seems there is no English language instruction book for the Wirlpool microwave FT 338. However, the nearest UK equivalent is the FT 337, and the only difference is the lack of the "Crisp" plate. I suggest you download the FT 337 instruction book in English from the Wirlpool.Uk website, and also the FT 338 insytruction book in French from the same source, which means you only need to translate a few lines of French into English to have the full instructions.
Hi, F-9 error code indicates a defective control board, inverter or line voltage too high. f the microwave runs for about 7 seconds with a ticking sound..then
stops and shows "F-9", it is the magnetron that has failed. The fact
that the unit starts and runs with the TICKING SOUND means the control
board is sending signal to inverter board and the inverter board is
sending signal to magnetron. Magnetron is covered by full 5 year
warranty, inverter board is only 3 years.
Behind the right front corner faceplate is a bag with the tech support info. I used this and went through all the troubleshooting and got to the power inverter board. This board has the 2 red wires out of it that go to the magnetron. Instead of replacing the whole inverter module , I examined all the components on it. I found that there are 2 high voltage rectifier diodes attached to the transformer and 1 of them was not testing good. The diodes are UXC2B diodes.. Just clipped out the bad one and soldered in a new one. Hope this helps..