Question about KitchenAid KBMS1454RSS Microwave Oven

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Hello sirs l have an kitchenAid microwave kbms1454sss-3 with no power or no display like new l check fuse is ok,the unit come with 2 small print board with atmega chip on it please l need info what the problem is

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  • h_karso Nov 13, 2010

    thank you

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  • KitchenAid Master
  • 12,061 Answers

Most often when a MW oven will not go, it is to do with the Magnetron and or the High voltage Diode breaking down under load, and or the power supply.
The absence of any indication of power also indicates a problem with the internal power supply, either the fault, has caused the power supply's protection circuitry to shut it down, or the fault has caused the Power Supply to fail as well. It's not really possible to tell until one actually investigates inside the unit.
MW's are very dangerous to service and these especially are best left to the professionals.
You need to contact the KitchenAid head or local office, and ask for a referral to an authorised service center, now when here, ask for a 'Quote" for the repair before allowing any repair work to proceed. this way you can make an informed decision as to repair or replace, as with many repairs, it can all quickly add up.

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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Kitchenaid khms155lss4 microwave combo went dead what fuse should i check frist


Check to make sure you are getting power to the receptical, plug a lamp to confirm. Next unplug microwave oven and remove top, "several screws" now look inside where the keypad is, follow the wiring to the circuit board, there should be a small glass or ceramic fuse clipped in, before you take it out discharge silver rectangular capacitor with a screwdriver across the points to make sure all voltage is removed. Now unclip the fuse and test, if open replace with the same current rating, if no change I recommend a technician to take it further. Please remember there is extreme high voltage when unit is plugged in and running making it lethal, put the top back on for safety sake.

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Hi,

I have the same model in my home only mine is black rather than stainless. The problem you are encountering is most likely due to a fuse that has blown internally in the unit. Before having it looked at be sure you have power to the wall outlet that the microwave is plugged into. The outlet is usually in the cabinet above the microwave, simply unplug the microwave and plug a lamp or other appliance to verify it is 'live'. If the outlet is live the repair for the fuse may be a done from the front if you have a bit of patients and basic knowledge of electricity. I would recomment calling a service company to make all repairs on this paticular unit as it can be very tricky. Let me know I can help further.

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Does not start. The power cord, plug, etc., are O.K.


Hello :

Maybe there's a problem with the power transformer or the power PCB [ Printed circuit board ] . Or it could be just a fuse . You need to check first . If it's the fuse , then that will be easy to solve , you need only to replace it with new one . But if the problem is with the transformer or with the PCB , you need to take your microwave to the service for repairing .

To locate the fuse, remove the outer cabinet of the unit, which is usually held in place with a few screws. Once the outer cabinet is removed, follow the power cord into the unit. It will take you to the fuse holder, where the fuse sits. The fuse holder is located two or three inches into the unit, and may be attached to a power board .


CAUTION: Your microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly suggest you seek the assistance of an appliance repair technician when conducting any microwave oven repair .

good luck .

please rate !

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Microwave MH7130XEB-2 stopped working while cooking. Is now dead. Check plug and breaker box, they are ok. Is it an internal fuse? If so what part # do I need?


Hello :

Problem with the power transformer or the power PCB . Or it could be just a fuse . You need to check first . If it's the fuse , then that will be easy to solve , you need only to replace it with new one . But if the problem is with the transformer or with the PCB , you need to take your microwave to the service .

You could check for manual here :

Whirlpool MH7130XE Microwave Oven manual .

good luck .

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1 Answer

Kitchenaids microwave error message F2.Q1. What to


F2.Q1 Not reading keypad
inputs
1. Unplug microwave oven or disconnect power.
2. Replace the user interface board (UIB).
3. Replace the door control assembly.
4. Replace all parts and panels before operating.
5. Plug in microwave oven or reconnect power.

Many of the error codes may be solved by power cycling: unplug microwave oven or
disconnect power. After one minute, plug in microwave oven or reconnect power.

i found this info on a tech sheet hope this helps, let me know how it goes... some of those electronics had 5 year parts warranty i would check that out....Also u might be better of buying a new one if its out of warranrty as some of those boards are expensive, obvioulsy unplug unit first try to reset it self.

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Maybe you should first by checking the fuse to the unit.Look around where the power cord come into the unit.The fuse may be blown.

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follow the incoming mains lead into the microwave their is a small pcb with a fuse their check this first

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hi alan,

it sounds like the transformer is bad, which makes this easy, time for a new one. 12yrs is a good age for a microwave, average life is about 8-10 yrs!

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