I had the same problem as another posting... the unit would turn on for 3 seconds and then just shut down. I returned it to Future Shop and they sent it away. The work order says they replaced a 20A fuse and a diode.
Now we plug it it in and it says: "Welcome to Panasonic. refer to operating instructions before use" over and over again. It never gets to the colon as per step 3 in the manual. I have tried everything I can think of... Please help as we have a newborn who likes his milk just right!!!
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I have never seen a home microwave that shuts down the unit to have you clean the air filter. Mostly they are reminders that stay up for a preprogrammed time. Have you tried to unplug the unit,let it set for a couple of minutes, Plug back in, set the time of day (clock ) and try it again?? If you get NO action from the touch panel, the touch panel may be bad.
The problem is your magnetron tube is leaking RF. The mag tube comes on 2-3 seconds after you hit start, and the RF interfears with the board and shuts it down. Drop the front of the control panel down and watch, it wont happen.. Get a new mag tube put in and you'll be good to go.
the unit has developed a power fault. This issue is related to a power problem in as much as the unit turns off on it's own. The problem is consistent with overheating on the power supply board of the unit.
The power supply board of the TV has few capacitors and IC. If any of these IC's gets short or become weak, it can cause the unit to turn off on it's own.
When current passes from electric outlet to the power supply board of unit. The current also goes to the weak/faulty part, then the current stops or slow and the board overheats and unit shuts off on it's own. It might have worked fine in the past, but
that's electronics for you. Power surge, irregular power supply, excess
power supply, etc can affect the unit thereby making it to behave this way. To actually find out what's wrong, you need to disassemble the
unit with a screw driver and check what's wrong. You will be needing a
meter and continuity tester in order to read the components on the power
board, once you detect any bad component, you can make necessary
replacement at any electronics accessories store withing our vicinity.
This is the only way by which you can detect the problem. Of course, testing the power board with a meter will require
someone that has the ability. So it you can't, then you might be needing
the help of a repairman or you can call a friend that has the ability
to help you out. I wish you the best of luck.
My unit shuts off after about 2 seconds. It seems like it tries to go, but it sounds like it stops working and then 1 or 2 more seconds run off and it shuts down. Then you hit start again and it lights up inside and then shuts down. It's only about 2 or 3 years old.Any solutions?