• ** REMEMBER! **The microwave can still shock you even unplugged!!

    ALWAYS discharge the high-voltage capacitor first if you even think your hands will come close to any HIGH VOLTAGE components.

    Jeff mentions this: Anything in the high voltage ( magnetron, capacitor, diode, wires to and from ):
    ...Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it.

    From Jeff's site: http://www.applianceaid.com/component-testing.php

    Jake
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FIXED Kitchenaid Microwave KMBP107EBS02 Only clicks when start button pressed

Jmjstar

Premium Member
Joined
Sep 9, 2021
Messages
5
Location
Can
Model Number
KMBP107EBS02
Brand
KitchenAid
Age
1-5 years
Hello,
Have a Kitchenaid Microwave not working! KMBP107EBS02

Main problem

When the start button is pressed for the microwave
- relay clicks on control board
- Interior light flashes 1 sec
- On the bottom left of display says Start?
- Does same on all other buttons pressed reheat, popcorn, etc....

Convention button does work as normal, can set temp and time, pre heats, etc... All good. Display All works

- No codes for microwave, says " good " on display when (pressing cancel, cancel, start to find codes screen)

Tried to do power diagnose ( learning)

-Checked voltage at junction box 120v+ each on black and red wire.
- Voltage into microwave power supply 120v+ checked only black, white going into board.
-Checked 2 micro switches on right side, tested good I think?
- Door open Yellow wires on switch 120v+, no power Blue wires
- Door closed Yellow no power, Blue 120v+
- No power readings on transformer. top 2 brown wires unless press the start button and get max 30v only for 1/2 second the start button is pressed.

What can be checked further to verify problem part or parts. Also no physical damage to boards that I can see.

-Power supply
- UI control board with relays
- Transformer

Thanks J

Corrected Age
 
Last edited by a moderator:

Jmjstar

Premium Member
Joined
Sep 9, 2021
Messages
5
Location
Can
Just tested line filter board also ,123volts going in 123volts going out.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
123,775
Location
McMullen Valley, Arizona
You posted the AGE as Less then 1 year old. You have a full warranty on it.

Contact KitchenAid Canada at 1 (800) 807 6777 to come out under warranty and fix it for free.

Jake
 

Jmjstar

Premium Member
Joined
Sep 9, 2021
Messages
5
Location
Can
Unfortunately was purchased off a local marketplace site. So no receipt.
Still would like to diagnose as will be ordering parts.
How to verify the part or parts that are damaged?

Thanks
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
123,775
Location
McMullen Valley, Arizona
Ok, I understand now.

Unfortunately, we can't locate the tech. data sheet or the service manual on this model to help you diagnose it. Lots of Canadian models have limited information, which we can't access in the USA.

Hopefully a Canadian KitchenAid tech that has worked on this model can assist you on it.

Jake
 

Jmjstar

Premium Member
Joined
Sep 9, 2021
Messages
5
Location
Can
Update

Replaced
- Control board with relays,
- Power supply board
- low voltage transformer.

Still same issue
-convention oven works ( can set temp and time, functions as normal
But
If try to use start button for quick start microwave , just clicks and light comes on for 1/2 second, then on display says Start?

Only board not replaced is the inline filter board( which lowers voltage for microwave use correct?

Just by testing output on filter board gives me 123 volts to fuse and then continues to 1st relay on control board.
This should be lower or higher? If using any other microwave model as an example.

Would like any suggestions.

Would the Magnetron make microwave the microwave not come on or if bad only effects heat or no heat?

Sorry for long post, just trying to get as much info as possible.
Thanks
 

Jmjstar

Premium Member
Joined
Sep 9, 2021
Messages
5
Location
Can
Solved , ended up being being left hand micro switch, not being fully extended, out of alignment , which controlled microwave.

Please close thread
 
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