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Error code u81 has just appeared. Any suggestions to reset it to get it to work again please? Currently it is turned off at the mains and will be for 30 mins to see if that works....

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You will need to call Panasonic customer support for more information on this problem. here is their contact information. Accessories; or make Customer Service and Literature requests by visiting our Web Site at: http://www.panasonic.com/support or, contact us via the web at: http://www.panasonic.com/contactinfo You may also contact us directly at: 1-800-211-PANA (7262), Monday-Friday 9 am-9 pm; Saturday-Sunday 10 am-7 pm, EST. For hearing or speech impaired TTY users, TTY : 1-877-833-8855 Accessory Purchases Purchase Parts, Accessories and Instruction Books online for all Panasonic Products by visiting our Web Site at: http://www.pasc.panasonic.com or, send your request by E-mail to: npcparts@panasonic.com You may also contact us directly at: 1-800-332-5368 (Phone) 1-800-237-9080 (Fax Only) (Monday ? Friday 9 am to 8 pm, EST.) Panasonic Services Company 20421 84th Avenue South, Kent, WA 98032 (We Accept Visa, MasterCard, Discover Card, American Express, and Personal Checks) I hope this helps you with your problem.

Posted on Nov 01, 2012

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SOURCE: Panasonic DMR-EX85 code error U81

You will need to call Panasonic customer support for more information on this problem. here is their contact information. Accessories; or make Customer Service and Literature requests by visiting our Web Site at: http://www.panasonic.com/support or, contact us via the web at: http://www.panasonic.com/contactinfo You may also contact us directly at: 1-800-211-PANA (7262), Monday-Friday 9 am-9 pm; Saturday-Sunday 10 am-7 pm, EST. For hearing or speech impaired TTY users, TTY : 1-877-833-8855 Accessory Purchases Purchase Parts, Accessories and Instruction Books online for all Panasonic Products by visiting our Web Site at: http://www.pasc.panasonic.com or, send your request by E-mail to: npcparts@panasonic.com You may also contact us directly at: 1-800-332-5368 (Phone) 1-800-237-9080 (Fax Only) (Monday ? Friday 9 am to 8 pm, EST.) Panasonic Services Company 20421 84th Avenue South, Kent, WA 98032 (We Accept Visa, MasterCard, Discover Card, American Express, and Personal Checks) I hope this helps you with your problem.

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SOURCE: My DVD will not work at all, can't get the drawer

Check that C1801 is not leaky. If so, check if IC1801 has blown. If it has blown, it will also need to be replaced.


Usually it's only C1801 leaky, replace it and thats it.


You can find the capacitor on the main board, under the digital board that has ribbon cables going to the dvd drive.

Hope this helps.

Posted on Apr 12, 2011

  • 153 Answers

SOURCE: dmr-ex85 shows u81 code and is not functioning at

Physically unplug power from the unit for a minute or two.
Connect power cord to unit and Simultaneously Press & Hold
both the [STOP] and Channel UP [^] for 5 seconds. This will
force Eject the DVD tray. Remove any disc if present.
Cycle the power again if necessary and wait for the unit to
go through its self check cycle. If after several attempts, and
you continue to get this error, then your Ram drive may need
to be replaced.

Posted on Jul 12, 2011

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F21 has appeared on my Bosch classixx 6 1200 model


F21 normally indicates a fault with the motor or the main control board. It could be the motor brushes need changing.
If you've changed the brushes you now need to erase the stored errors and try the machine again.
.
Turn the knob to off.
Close the door.
Turn the knob to 6 o'clock position.
Wait 2 seconds.
The start/pause should begin flashing.
Press and hold the spin button. (the spin button is the one that changes the spin speed, it may be marked "RPM")
Turn the knob to 7 o'clock position.
Wait 2 seconds.
Release the button.
Turn the knob to off.
.
This should erase the error code and get you running again.
.
If the error code returns, you have a problem with the motor, wiring or main control.
If the machine won't go into diagnostics to erase the error code, it would suggest a faulty control board.
.
Try it several times to see if you get it reset.
.
Note, If the start button doesn't flash, just carry on trying to erase the codes.

Dec 22, 2012 | Bosch Classixx WFL 2066 Front Load Washer

1 Answer

Code 3452 and my touch screen is not working


These could be related problems, however I doubt that they are. The error code 3452 refers to thermistor not reaching temp within specified 30 second time frame. There is a sensor there that monitors this. Touch screen may not work due to error code. However, I'm a little suspect that it may be a different problem. But first, let's solve the initial issue and then move onto the screen.
Try clearing the error code first, and then if it appears again, you'll need to look at replacing either the sensor or thermistor. If you are not a certified technician, but attempting to resolve yourself, I would suggest sending the fuser back to whomever you purchased it from and telling them to supply you with another one. During rebuild they probably did not properly gauge the sensor from the fusing roller. therefore it is not able to properly monitor temperature. (very common problem)....
Here is the instructions for clearing the error code:

1. Turn OFF the Main Power Switch.

2. Turn Main Power Switch ON again while holding down the Utility/Counter key more than 10 seconds after. A screen will appear saying "TROUBLE RESET"

3. Touch "TROUBLE RESET".

4. Check to make sure that "OK" is displayed below which confirms it has been reset.

If "OK" is not there , it will show a different code....

IF it says "OK", you should be good to go. Error code should now be cleared.

5. Just Turn off the Main Power Switch wait at least 10 seconds....and turn it on. Make sure that the machine properly starts.


** If it re-displays the code again within a short period of time, replace the fuser unit. Or get a certified technician to replace the or adjust the sensor or Thermistor unit. However, since you just purchased this I will assume that it is either a defective unit from manufacturer, or the company who rebuilt it did not properly ensure it was working. Return it and demand a replacement in EITHER case!! J


Hope this helps

Sep 02, 2011 | Konica Minolta bizhub C450P Laser Printer

1 Answer

U81 error up Do I have to take it to a electrical repairer or is there anything i can do ?


I posted a suggestion a couple of months ago about a similar Panasonic DVD recorder (model DMR-EX78EB) with this exact problem:

This is one of several error codes generated by the main microprocessor IC which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

The U81 and U80 codes don't mean anything in particular because the corruption error(s) could be caused by a number of different reasons. It does not point to any specific one fault. This is where the confusion sets in as to the origin of the 'error codes' in any device.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

The DMR-EX series of models are prone to U81 - which is a common (and extremely irritating) error code. As I said, it is not unfixable, if you are prepared to spend a fair amount of money on the repairs by a qualified service technician in a fully equipped workshop with access to all the required components and service manuals.

Certainly worth investigating at least; and you should not need to purchase a new unit. Go with the quote first - then decide on a further course of action.

May 24, 2011 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

2 Answers

Error code U81 onDMR-EX75EB Unit will not power up, keeps shutting down


I have posted advice on the possible cause behind this error code (as well as other members on FixYa) for this model DVD recorder previously. For you I will re-iterate:

The U81 error code is a common problem
with many Panasonic DVD recorders of the DMR-EX series.

This is one of several error codes generated by the main microprocessor IC in the unit which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used (if available) and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

(sometimes unplugging the unit from the power point for up to 30 minutes, then reconnecting resets it completely and clears the error code with no further remedial action required)

Usually when this error occurs, and persists, the unit cannot be reset by the user. In your case, the constant shutdown may also likely be a fault in the switchmode power supply as well as a problem with the microprocessor. It may or may not prove an expensive exercise.

Certainly worth investigating at least.
It's up to you as to what you decide to do from here.
I hope I have shed some light on the subject for you and similar people who have experienced this particular error display.

Apr 03, 2011 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

1 Answer

My DVD RECORDER MODEL NO DMR-EX75EB, THE CODE U81 KEEPS COMING UP WHEN I SWITCH ON MY RECORDER, ALSO I CANNOT GET INTO MY SETTINGS TO SEE IF I CAN FIX IT. THANK YOU


This seems to be a common fault with many Panasonic DVD recorders of the DMR-EX series.

This is one of several error codes generated by the main microprocessor IC in the unit which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used (if available) and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

I posted this 'advice' for this (and a couple of similar models) previously. The DMR-EX series of models are prone to U81 - which is a common (and extremely irritating) error code. As I said, it is not unfixable, if you are prepared to spend a fair amount of money on the repairs by a qualified service technician in a fully equipped workshop with access to all the required components and service manuals.

Because of the malfunction, the user settings and options are inaccessible, and there is no official user-reset option on this or any model of the series to clear this particular error.

Certainly worth investigating at least, as Panasonic usually make great products.
It's up to you as to what you decide to do from here.

Mar 28, 2011 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

1 Answer

DVD recorder DMR-EX78EB - Keeps showinf error message 'U81' on display. This means that it does not perform set recordings. What causes this please and how can we fix it as I am fed up with finding...


This is one of several error codes generated by the main microprocessor IC which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

The U81 and U80 codes don't mean anything in particular because the corruption error(s) could be caused by a number of different reasons. It does not point to any specific one fault. This is where the confusion sets in as to the origin of the 'error codes' in any device.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

I posted this 'advice' for this (and a similar) model previously. The DMR-EX series of models are prone to U81 - which is a common (and extremely irritating) error code. As I said, it is not unfixable, if you are prepared to spend a fair amount of money on the repairs by a qualified service technician in a fully equipped workshop with access to all the required components and service manuals.

Certainly worth investigating at least.




Mar 24, 2011 | Panasonic DMR-EX85EB-S DVD Recorder/HDD...

1 Answer

My DMR EX75EB it fails to operate and a code of U81 comes up.


This is one of several error codes generated by the main microprocessor IC which are tripped by corruption, preventing proper operation and which may require the processor to be reset (where practical) or replaced.

The U81 and U80 codes don't mean anything in particular because the corruption error could be caused by a number of different reasons. It does not point to any specific one fault. This is where the confusion sets in as to the origin of the 'error code' in any device.

U81 means (in technical terms) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

This is not something the user should undertake to repair themselves; it should really go to an authorised Panasonic repair centre. The cost depends on the parts used and the labour, however, it is not unfixable. You can always get a quote on this and a second opinion, then decide for yourself if it is economical or not.

I posted this 'advice' for this model previously. The DMR-EX75 and DMR-EX85 are prone to U81 - which is a common error code.

Mar 14, 2011 | Panasonic DMR-EX75EB-S DVD Recorder/HDD...

1 Answer

My panasonic dmrex75 has an error U81 on it. Does anyone know what this means?


This is one of several error codes generated by the main microprocessor IC which are tripped by corruption, preventing proper operation and which may require the processor to be reset or replaced.

The U81 and U80 codes don't mean anything really because the corruption error could be caused by any one of a number of different reasons. It does not point to any specific one fault. This is where the confusion sets in as to the origin of the 'error code' in any device.

Nevertheless, U81 means (in technical terminology) 'microprocessor communication malfunction' on the universal asynchronous receiver/transmitter' or 'microprocessor feedback information error'.

Either way, this is not something an end-user should undertake to repair themselves; it should really go to an authorised service centre. The cost depends on the parts used and the labour, however, it is not unfixable.

Mar 03, 2011 | Televison & Video

1 Answer

I have an error message U81. The DVD recorder


These are error codes generated by the main microprocessor which are tripped by corruption, preventing it's operation and which requires the processor to be reset.

The codes do not actually mean anything at all because the corruption error potentially has a great many possible causes.
It does not point to any specific fault as such.

U81 error literally means 'Microprocessor Communication Error on the Universal asynchronous receiver/transmitter' but I dare say if Panasonic told you that , you would be no further forward.

Corruption can arise for many different reasons .. and is not surprising in a box that has an aerial feeding endless streams of complex data into it, has a mains connection with interference on it, has two internal data storage and retrieval systems, either of which can be problematic... and sits permanently bathed in electrical and radio frequency fields of varying intensity.

Causes can be difficult to identify and may be internal or external.
Such problems may be exacerbated during the transitional phase of the DSO [ Digital Switch Over ]

In practice, all one can do is follow good practices:
Don't stack gear - or give it plenty ventilation if you do.
Ensure good clean mains supplies.
Ensure a properly installed aerial system with sound connectors and adequate screening.... etc.

Feb 05, 2010 | Panasonic DMR-E80H DVD Recorder

1 Answer

When I turn on the machine (bizhub c300) error code c3452 appears, within 20 secs, How do I reset this code


This is a fuser related code.
To reset the code, please do the following
1. Turn OFF the Main Power Switch.
2. Turn Main Power Switch ON while pressing the Utility/Counter key.
3. Touch Trouble Reset.
4. Check to make sure that OK is displayed and the it has been reset.
5. After turning off the Main Power Switch, turn it on again more than 10 seconds after
and check if the machine starts correctly.

Good luck

Jan 21, 2010 | Konica Minolta Bizhub C300 All-In-One...

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