Hi everyone, I’m scratching my head a bit with the FBH I’ve come out to the car now and then and it sounds like it’s been on although no warm air in the cabin I can just hear the noise coming from the N/S wing area, it does seem to turn itself off after a bit or when I start the car.
I pulled out fuse 59 today and it instantly stopped and have left the fuse out for now.
Has anyone else had this happen to them?, is there any way to make sure it only comes on when programmed or when the remote is used?.
I’m pretty sure this kicks in when the car is started in the winter too as Diesel engines take a while to get warm so ideally I’d like to get it working as it should.
Thanks in advance for any help.

How's about filling in your model and year in the profile? Helps all of us help you better.

You say it's runing when you go to the car, are you using the remote or what? Lots of info on here, but a bit more about what happens to yours will help. Battery voltage, fuel tank level, does it start and stay running when the car starts and does the unit exhauast get hot? Can you hear the FBH pump running etc? If the engine or air temp is low then it should run until the correct values are achieved. Later models can be programmed through the touch screen for time on etc. but not too sure about earlier ones.

We'll try to help but info is the key  Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

Check to see if the timer has been set on timed climate on the central display. It’s a possibility.

If there isn’t any warm air it’s possible the fan has been running to ventilate the car if it was warm, times climate will ventilate as well as warm.

If it’s was chilly and there wasn’t any warm air, operate it with the remote when it’s cold enough in the morning and listen for the FBH pump ticking around the rear wheel area, it’s mounted somewhere above the rear subframe area. If it ticks it will probably meant the burner has ignited.

There isn’t any way (apart from removing the fuse or editing the CCF) to stop it running to warm up the engine. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Sorry, it’s an early 2007 TDV8 Vogue I will put it in my profile.
I’ve approached the car a few times and heard it running but the climate control temp selectors have only been turned to the cooler side, I don’t know if it goes off the climate control to set the temp?.
Fuel level has been at between half a tank and a quarter but never below with the light on, I’ve not put a multimeter across the battery yet but can do if this is helpful?.
Currently left the fuse out for the last couple of hours so will put it back in and see what happens, I’ve not pressed the buttons on the remote and the timed climate is definately not programmed.
Will leaving it this long with the fuse out have reset it?, I can try and do a video of it if helpful?.

It seems odd that it's runningif you haven't used the remote and the timed climate is off. Not sure of the fuse being out will reset the FBH but it shouldn't do any harm. There's the workshop manual in the wiki that may cover your FF (2007/2010) and the FBH can be found about page 2090. That may give you an idication of how it should work. Also in the 2011/13 WM there's a good write up in

climate/auxilliary heating/2locations.

I'm not sure why the FBH should be running at random times when you go the car, but try removing the remote battery and see if it makes any difference. Then replace the battery and try pairing the remote. You could try a hard reset by disconnecting the car batery and leaving for a while then reconnecting. I think you have to turn the steering lock to lock after reconnecting on your model, but someone with more knowledge on that will be along soon.

IIRC the FBH does not work/shuts down at low car battery voltages, about 11.5 shuts it down, so a good charge is essential. Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

Thanks for your help , I might try pairing the remote and turning it off, no idea how to pair it though but will search on here.

The sign to tell if it is working or not is to listen for the FBH fuel pump. If you cannot hear that pulsing the FBH is not working. 2004 4.2 SC Japan Spec
2004 4.2 SC
2004 4.4 AJV8

I can hear what sounds like the fan for the FBH in the near side wheel arch but it seems to turn itself off after a minute or two and there is no smoke and no heat, guess the FBH isn’t working or getting fuel?.

If you can’t hear the fuel pump ticking then it hasn’t ignited. As I said the noise comes from the rear

It may be too warm for it to run now tho. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

It looks at ambient temperature and will enter parked ventilation mode if the ambient temperature is high (fans will run, but FBH will not ignite). If memory serves, I believe the threshold is 60F. I'm not super familiar with MY07, but on MY10-MY12, the two different LED's on the "Auto" button on the climate module will blink at 2hz to indicate the current FBH status (parked heating vs parked ventilation mode being commanded).

To really see what is going on the best, I recommend the webasto thermo top 2.16 software that will show all the current heater status (like if glow plug is being commanded, fuel pump output frequency, flame sense, errors, etc). That is the absolute best way to debug FBH issues. My second choice would be JLR SDD using the "Datalogger" under climate control, most FBH data is available in real timevia K-Bus