Question about Neff U1661 Double circotherm super Electric Oven

4 Answers

Child lock code -5- has appeared.

The child lock code has appeared on the lower oven. We have followed the instruction under "troubleshooting" by turning the dial 3 times but this has not solved the problem. We have also swithced the electric supply off at source and switched on again but still no solution!

Posted by on

  • albr10 Aug 30, 2008

    After 2 weeks powered down (holiday), upon re-power, the -5- sign came up and despite following the troubleshoot guide (0 - light x 3) I cannot get rid of the -5- or get the oven to work.

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Here is what worked for me.
Turn left to light on, then off
on/off (light)
on/off
on/off
(4-5 times)
do not run through the complete cycle of options
just to the light and back off.
Ken

Posted on Mar 17, 2009

  • lennon_linda Mar 03, 2011

    thanks so much for this. have spent an hour and a half trying to sort this out. carried out what you suggested and it worked straight away. you are a star.

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Just got rid of permanant issue with -5- by holding down the 2 Arrowed buttons (beneath the clock) whilst turning the selector knob from fan assist (1st symbol) to oven (2nd symbol) and back, a few times (didn't count how many).
Prior to this I had de-powered then powered back up with selector at fan symbol (not sure if this had any effect on the outcome?)

Posted on Aug 30, 2008

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Turn the first dial from o to light 3 time... hope you get it

Posted on Aug 17, 2008

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If the oven is a B1691 the child lock has been activated and it is reset by pressing the central rotary button right in and holding it there for 8 seconds. This was accidentally activated by my wife and we lost use if it for two weeks looking for a solution, perhaps Neff could add a wife lock as well :)

Posted on Mar 22, 2014

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Below is the complete instruction sheet.

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H. Observe for longer than 1 minute to determine if error has been repaired.

I. If error does not appear, initiate a bake cycle. Let the cycle run for at least

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At step D, replace the lower oven user interface board if appliance

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Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

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How to start oven in PROPANE STOVE


Print the following infore for future ref if you wish. How it works is simple tage a look at it in Motion
Component Test Procedure Results
Electronic
range control
F1−1 –Upper Oven >650°F with door unlocked.............................
F1−2 –Lower Oven >650°F with door unlocked.............................
F1−3 –Upper Oven >950°F with door locked.................................
F1−4 –Lower Oven >950°F with door locked.................................
F1−7 –Membrane switch is not responding ...................................
F3−1 –Upper sensor is shorted at (< 100 ω) or
open at (>5 K ω) ...............................................................
F3−2 –Lower sensor is shorted at (< 100 ω) or
open at (>5 K ω) ...............................................................
Check actual upper oven temperature,
if > 650°F check sensor.
Check actual lower oven temperature,
if > 650°F check sensor.
Check actual upper oven temperature,
if > 950°F check sensor.
Check actual lower oven temperature,
if > 950°F check sensor.
Check membrane switch for connection or damage.
Check upper sensor, harness, and connections
Check upper sensor, harness, and connections
Engineering
Test Mode
Press BAKE pad.
Enter 100°F using the number pads.
Immediately push and hold BAKE pad for appropriate oven
approximately 3 seconds.
This mode can also be entered by pressing the hidden pad
for 3 second located to the left of the lower oven light pad.
Used to view the actual oven temperature for both ovens at all
times, even when an oven function is active.
This mode will also display the current fault code for 5
seconds in the time digits.
Fault codes
accessed
through
Engineering
Test Mode
F0−0 –No fault .................................................................
F1−5 –Upper hardware failure within control ....................
F1−6 –Lower hardware failure within control.....................
F1−8 –Shorted key in membrane switch ..........................
F1−9 –Internal communication errors within control .........
F1−A –Upper latch switches ............................................
F1−B –Lower latch switches.............................................
F1−C –Upper door switch.................................................
F1−D –Lower door switch.................................................
F1−E –Sensor input not calibrated ...................................
F1−H –EEPROM error .....................................................
F1−L –Temp in ovens are the same for long period .........
F1−N –Internal voltage on control not working .................
F9−1 –Upper lock switch is not correct.............................
F9−2 –Upper unlock switch is not correct.........................
F9−3 –Control does not see upper door lock....................
F9−4 –Lower lock switch is not correct.............................
F9−5 –Lower unlock switch is not correct.........................
F9−6 – Control does not see lower door lock ...................
EE –Control cannot read E-PROM. Unit will shut down.
Default from factory
Replace control
Replace control
Check membrane connection
Replace control
Check latch wire harness
Check latch wire harness
Check lock wire harness
Check lock wire harness
Verify sensor is operating properly
Replace control
Verify sensor is operating properly
Replace control
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Disconnect power for 60 seconds. If EE reappears, replace ERC
Test Mode This mode must be activated within the first 5 minutes of
power up.
Press BROIL and CANCEL pad for approximately 3 seconds.
If oven temperature is greater than 400°F, the Test Mode
cannot be activated or will abort if active.
Press and hold individual pads for 4 seconds to activate.
Display will have dashes in all segments to indicate the mode is
active.
Upper Bake: Energizes upper bake element
Lower Bake: Energizes lower bake element
Upper Broil: Energizes upper broil element
Convection Bake: Energizes convection fan
Upper Oven Light: Energizes upper oven light
Lower Oven Light: Energizes lower oven light
Upper Clean: Energizes upper motorized door lock
Lower Clean: Energizes lower motorized door lock
Stop Time: Energizes Beeper
Cook Time: Displays error codes
Timer 1: Energizes ROM version
Timer 2: Energizes EEPROM version
Keep Warm: Cooling Fan
Clock: All display segments light
If functions do not perform as specified, replace ERC
Oven
temperature
adjustment
Push BAKE pad.
Enter 550°F using the number pads.
Immediately push and hold BAKE pad for appropriate oven
approximately 3 seconds.
To decrease or increase oven temperature. Push AUTO SET
pad until negative or positive numbers appear. Oven can be
adjusted from -35° to +35° (-37.2° to + 1.6° C) in 5° F (2.7° C).
To avoid over adjusting oven move temperature -5° each time.
Push OVEN CANCEL button.

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2 Answers

Neff oven U1661 shows fault code -5-


We have a similar Neff Oven - it is a child proof lock that you have activated. To deactivate - turn the left hand dial that selects the mode of cooking - three times to the left and back (turn it from 12 oclock to 11 oclock and back) in quick succession.

Sep 17, 2008 | Neff U1661 Double circotherm super...

1 Answer

Neff oven B1641 child lock


I actually had the same problem and got the solution. Maybe its a bit late, but hopefully there will be somebody who find this useful as well.

Its not an error. The -5- indicates that the oven is "children protected".
- Put the left ON/OFF switch into its OFF position (the left switch)
- Turn it quickly 3 times: one click to the left and then one click back to right again [light position, Off position]
=> The message disappers.

If you do this again, the protection is switched on again.

Greetings from Germany

Jun 25, 2008 | Neff B1641 Single circotherm super...

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