Forgive me for yet another post on this topic but I haven't found the answer I seek, despite 64 results to my search.

I'd prefer it if the FBH didn't start so frequently, especially when temps are in the 5-10C range. I understand the logic of a quick burst on the first start of a frosty morning. But if I cover only a short distance, or even just move the car out of the garage. I hear the FBH running and then purging before stopping. Then off it goes again when I go to the newsagent, I get out its runs for a bit. I get home and switch off and the bl**dy thing is still running. I know it's bad to do short trips, but needs must from time to time.

So I want to disable the FBH, but electronics not my scene. Should I remove the 5A fuse (control circuit?) and the 20A fuse (heater supply?), or just one or the other and if so which and why? Both fuses are out right now and I don't get any warnings when I start the engine, but could I do any harm to anything, in particular the electronic gubbins?

All thoughts welcome

Cheers, Andy

PS It seems that FBH won''t start if heater controls set to OFF so this may have to be my fallback position. 2011 TDV6 HSE Stornoway grey, ivory trim

Life's too short to drive an ugly car.

I think you are mistaken, the FBH doesnt operate at levels above 4 degrees, and certainly not anything around 10, the sound you hear is something totally different than the FBH running 07,TDV8,Black, Black Heated leather all round, Rear Entertainment with Headpones & Remote, TV, DVD, Pure Dab Digital Radio, Sidesteps, Adaptive Headlights, sunroof, now working fuel burning heater )))

If it bothers you, just unplug it. Although why you wouldn't want to use something that helps the engine warm up and be more efficient, I don't know....

Why are you annoyed that it runs....?  Bodsys Brake Bible
Software Updates Contact me
RRS Timed Heat/Remote kits - Contact me
BAS Engine Re-maps/ EGR Blank EuIII and EuIV
Clock On The Dash/ SNOTM /3Flash / BT Update /Service Reset/Error Codes read\ Gearbox Reset
See it HERE

shakeapaw wrote:

I think you are mistaken, the FBH doesnt operate at levels above 4 degrees, and certainly not anything around 10, the sound you hear is something totally different than the FBH running

Bodsy wrote:

If it bothers you, just unplug it. Although why you wouldn't want to use something that helps the engine warm up and be more efficient, I don't know....

Why are you annoyed that it runs....?

It doesn't burn fuel at that point, it just cools it down by continuing to run the fan and the water pump for a short while.
The fuel pump will have switched off if looking at the live values. Bodsys Brake Bible
Software Updates Contact me
RRS Timed Heat/Remote kits - Contact me
BAS Engine Re-maps/ EGR Blank EuIII and EuIV
Clock On The Dash/ SNOTM /3Flash / BT Update /Service Reset/Error Codes read\ Gearbox Reset
See it HERE

As Bodsy says, the noise you can hear is just the fan running to ensure it's cool before turning off completely. The fuel pump only runs with the engine running unless you have one of the many timer options fitted. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Thank you Bodsy and RRSTDV8, I am re-aassured to know that what i hear is just the shutdown sequence - certainly i have noticed the last 15 seconds or so are just the fan whirring as if purging the FBH.

Now I know it's not using fuel I'll go and replace the fuses!

Thanks again guys, Andy 2011 TDV6 HSE Stornoway grey, ivory trim

Life's too short to drive an ugly car.

Wish my would work its on and off like a light switch "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!