Auxiliary heater not working : blinking icon

[valentin8709]

Hello everyone,
We just bought a T5 California (year 2015), and have a little misunderstanding.

From the control panel, the aux heater icon is blinking and cannot be activated. I suspect the batteries or the child security. Did you ever encountered this problem?

(We are in travel without our van, we have only the VW manual)

Thank you very much,
Valentin

 

[MartG]

The blinking light indicates a malfunction.
Not too sure but it requires the leisure batteries to be above ~11.5-12V AND more than 1/4 full of diesel in the tank to operate...

 

[Soton Campers]

This has happened to me on a T6. I reset the camper control unit and all was well. It's never happened again since.

 

[valentin8709]

Thank you for your fast answer!
The tank was full but the leisure batteries was ~10%.

I charged them all the night (~7h) and were at 80% in the morning, but the icon did not stop blinking. Perhaps I need to turn the engine on and drive a bit to disarm the security. Or perhaps the batteries are too old (almost 5 years).

I saw AGM batteries 100A/h at 250€ each (we live in France). Do I need other caracteristics to make a choice?

 

[valentin8709]

@Sotton Campers, thank you! How to reset the control unit? Is it indicated in the manual?

 

[MattBW]

Press the L hand bottom button. This switches OFF the panel. Wait 30 secs and switch on using same button. This restarts the Control Panel.

Holding the Bottom R Button and pressing the Knob for a few seconds puts you into the hidden menu. This includes a Diagnostic setting which shows if there are any Fault Codes. These can be Reset and cleared.

 

[valentin8709]

Thanks that's very helpful!

 

[WelshGas]

Thanks that's very helpful!

For those of you who don't know, if you ever get any problems with roof stuck or any other error say with the heater or fridge, you are able to access the hidden menu in your control panel as used by the VW Engineers.
Access as follows:

1. Hold down the centre of the rotary button together with the menu button (button below with the squares on it)
2. You will get the hidden menu.
3. Rotate the rotary button to get to "VW diagnose" and select this by pressing on the centre of the rotary button.
4. If no errors are present it will display "no errors"
5. If Errors are present then a list of errors will appear
6. Press the centre of the rotary button again to delete all the errors
7. Repeat process above just to check that errors have dissapeared!
8. Re-configure the time and date if neccesary.

Any problems should be resolved assuming these are Electronic and not Mechanical.


Error Codes from Control Panel.


1 = 1 = Pop-up roof
2 = 2 = Plumbing Heating
3 = 3 = Cool box Cooler
4 = 4 = Sewage wastewater
5 = 5 = Fresh water
6 = 6 = Outside temperature
7 = 7 = Battery
Error Code Defect Fault
1010 1010 Short-circuit to (earth) roof
1001 1001 Fuse / short circuit to (plus+) roof
1100 1100 Short-circuit output Roof "on"
1101 1101 Fuse roof "to"
1110 1110 Short-circuit output Roof "to"
1111 1111 Fuse starting Roof "to"
2100 2100 Short-circuit output heating on / off
2101 2101 Fuse output heating on / off
2001 2001 Interrupt input heating 30
3100 3100 Short-circuit output coolbox
3101 3101 Fuse interrupt output coolbox
3001 3001-J698-cooler input error "Active"
3010 3010 Short-circuit input icebox "actual temperature"
3011 3011 Interrupt or fuse input icebox "actual temperature"
4000 4000 Short-circuit to ground water level sensor
4001 4001 Fuse circuit to plus water level sensor failure
5000 5000 Short-circuit to ground water level sensor
5001 5001 Short circuit to plus water level sensor failure
6000 6000 Short-circuit to ground temperature sensor or for outdoor temperature
6001 6001 Fuse / short circuit to plus two temperature sensors for outside temperature
7001 7001 interrupt input interrupt input D +

 

[IanE]

WelshGas - as ever, thank you for your advice. We're currently on a rainy and cold ( yes in August!) campsite in Cornwall. The heater icon was flashing and the heater wasn't functioning. Following your instructions above, even though no "no errors" came up, the icon stopped flashing and the heating is working. Marvellous!

 

[IanE]

For those of you who don't know, if you ever get any problems with roof stuck or any other error say with the heater or fridge, you are able to access the hidden menu in your control panel as used by the VW Engineers.
Access as follows:

1. Hold down the centre of the rotary button together with the menu button (button below with the squares on it)
2. You will get the hidden menu.
3. Rotate the rotary button to get to "VW diagnose" and select this by pressing on the centre of the rotary button.
4. If no errors are present it will display "no errors"
5. If Errors are present then a list of errors will appear
6. Press the centre of the rotary button again to delete all the errors
7. Repeat process above just to check that errors have dissapeared!
8. Re-configure the time and date if neccesary.

Any problems should be resolved assuming these are Electronic and not Mechanical.


Error Codes from Control Panel.


1 = 1 = Pop-up roof
2 = 2 = Plumbing Heating
3 = 3 = Cool box Cooler
4 = 4 = Sewage wastewater
5 = 5 = Fresh water
6 = 6 = Outside temperature
7 = 7 = Battery
Error Code Defect Fault
1010 1010 Short-circuit to (earth) roof
1001 1001 Fuse / short circuit to (plus+) roof
1100 1100 Short-circuit output Roof "on"
1101 1101 Fuse roof "to"
1110 1110 Short-circuit output Roof "to"
1111 1111 Fuse starting Roof "to"
2100 2100 Short-circuit output heating on / off
2101 2101 Fuse output heating on / off
2001 2001 Interrupt input heating 30
3100 3100 Short-circuit output coolbox
3101 3101 Fuse interrupt output coolbox
3001 3001-J698-cooler input error "Active"
3010 3010 Short-circuit input icebox "actual temperature"
3011 3011 Interrupt or fuse input icebox "actual temperature"
4000 4000 Short-circuit to ground water level sensor
4001 4001 Fuse circuit to plus water level sensor failure
5000 5000 Short-circuit to ground water level sensor
5001 5001 Short circuit to plus water level sensor failure
6000 6000 Short-circuit to ground temperature sensor or for outdoor temperature
6001 6001 Fuse / short circuit to plus two temperature sensors for outside temperature
7001 7001 interrupt input interrupt input D +

View attachment 53599

WelshGas - as ever, thank you for your advice. We're currently on a rainy and cold ( yes in August!) campsite in Cornwall. The heater icon was flashing and the heater wasn't functioning. Following your instructions above, even though no "no errors" came up, the icon stopped flashing and the heating is working. Marvellous!

 

[IanE]

WelshGas - as ever, thank you for your advice. We're currently on a rainy and cold ( yes in August!) campsite in Cornwall. The heater icon was flashing and the heater wasn't functioning. Following your instructions above, even though no "no errors" came up, the icon stopped flashing and the heating is working. Marvellous!

Heck! I've just discovered that I asked the forum the same question in 2017!

 

[Tinkerbell]

Press the L hand bottom button. This switches OFF the panel. Wait 30 secs and switch on using same button. This restarts the Control Panel.

Holding the Bottom R Button and pressing the Knob for a few seconds puts you into the hidden menu. This includes a Diagnostic setting which shows if there are any Fault Codes. These can be Reset and cleared.

This is a great piece of information. In the midst of a trip through the Outer Hebrides.... Had the Alternator replaced earlier today (different story...but Waterside Motors near Balivanich we're brilliant!!). Got to our campsite tonight after a wild wet and windy day ...only to find Heater light flashing. Using the "reset" tip above for Bottom Right button cleared the issue ....and glorious heat once more warming us up.

 

[Tinkerbell]

Press the L hand bottom button. This switches OFF the panel. Wait 30 secs and switch on using same button. This restarts the Control Panel.

Holding the Bottom R Button and pressing the Knob for a few seconds puts you into the hidden menu. This includes a Diagnostic setting which shows if there are any Fault Codes. These can be Reset and cleared.

This is a great piece of information. In the midst of a trip through the Outer Hebrides.... Had the Alternator replaced earlier today (different story...but Waterside Motors near Balivanich we're brilliant!!). Got to our campsite tonight after a wild wet and windy day ...only to find Heater light flashing. Using the "reset" tip above for Bottom Right button cleared the issue ....and glorious heat once more warming us up.
Thank you!!!