Ihave dmr-e55 it records advd for 5 minutes and it goes to self check

No power light look for a fuse--power light comes on and then goes out look for either a jammed mechanism or a power supply problem.

in short "yes". the switching regulator IC (component found on heatsink "cooks" because the heatsink is not big enough).
start with checking power supply capacitors for bulging tops or electronic leakage (preferably using ESR meter) & fitting bigger heatsink. If problem persists then replace switching regulator IC

I have had a Panasonic DMR-E85 with this exact same problem you are describing. As I bought a Freeview Dual-tuner PVR I just bought a second-hand DMR-E55 as I liked the Panasonic interface. Two months down the line it is now exhibiting the exact same problems, except now as well as the continual self-check rebooting, it's also refusing to eject the disk. Booo. Time for me to buy a new DVD recorder again, and this time certainly not Panasonic... :(

I have had a Panasonic DMR-E85 with this exact same problem you are describing. As I bought a Freeview Dual-tuner PVR I just bought a second-hand DMR-E55 as I liked the Panasonic interface. Two months down the line it is now exhibiting the exact same problems, except now as well as the continual self-check rebooting, it's also refusing to eject the disk. Booo. Time for me to buy a new DVD recorder again, and this time certainly not Panasonic... :(

unit goes in to self checking over and over dvd can not be ejected and will not function at all?

Hi

This is very common, please see my earlier posting which will tell you how to repair it, by clicking the link.
DMR E55 Self Checking Repair

Best wishes

You will have no problem playing your non finalized discs on any of the Panasonic DMR range including the DMR EZ28 series. The DMR E55 can also easily be repaired if you can use a soldering iron and a little care. Please checkout my other postings for full repair details.
Cheers...

Hi Steve
Please see my earlier answer to this common problem >HERE<
Best wishes..

If self check keeps going after 1 minute unplug machine and open top cover remove 4 screws that hold the recorder top cover remove disk reinsert screws and plug in see what happens.

Most of the time a small scratch or fingerprint on recorded disk cause these units to lock up

Hi Audi,
Try unplugging the hdd & then turn on the dvd recorder & wait for about 5 minutes.
Then unplug the dvd recorder & plug in the hdd & turn back on the dvd recorder to see if that fixes the problem.