Fuel burning heater

Geoff130 · 7th January 2024, 20:54

I retrofitted a FBH to my diesel but I can't find the five degree switch, is it only part of the factory fit? I have tried a simple switch and re-used a heated seat switch in the centre console. The problem is they only operate when the battery voltage is 13v or higher and I want to run the FBH without the engine running. I should probably get the remote.

macafee2 · 7th January 2024, 21:17

I dot think there is a separate switch, I would have thought it part of the temperature sensor.
If you want a remote, PM Devilish.
You could go flash and start it by text message

You could manually earth one of the pins in the plug that fits into the FBH, this will start the FBH.

macafee2

alan richard · 10th January 2024, 13:57

The 5 degree switch, is an existing thermostat mounted at the front which should be wired back to the FBH plug already for the 'auxiliary heating' mode.
I understand it puts +12v to pin 1 of the FBH
(citation required or I'll double check the wiring diagram later)

If the FBH is a 98570B model - -ve to blank pin 3 will start.

-A

Arctic · 11th January 2024, 09:34

Quote:

Originally Posted by Geoff130

I retrofitted a FBH to my diesel but I can't find the five degree switch, is it only part of the factory fit? I have tried a simple switch and re-used a heated seat switch in the centre console. The problem is they only operate when the battery voltage is 13v or higher and I want to run the FBH without the engine running. I should probably get the remote.

Hi Geoff.
Try Steve & Rob below.
https://www.webastorepairs.co.uk/

Mike Trident · 16th January 2024, 19:25

There is no switch as standard, it should fire up at temperatures below 5 deg.

I've fitted a switch to mine as I think 5 deg is actually too low, I generally turn it on manually at 10 or below, or let it do its own thing if its under 5.

I also have it wired up so I can send it a text to start up the FBH, or a different text to start up the FBH followed by the heater blower 10 mins later, and turning off after 20 mins total as to not flatten the battery.

7th January 2024, 20:54	#1
Geoff130 Loves to post MG ZT 190, Rover 75 CDTi, Honda VFR 750, Honda CB550F Join Date: Aug 2010 Location: Derby Posts: 393 Thanks: 75 Thanked 36 Times in 28 Posts	Fuel burning heater I retrofitted a FBH to my diesel but I can't find the five degree switch, is it only part of the factory fit? I have tried a simple switch and re-used a heated seat switch in the centre console. The problem is they only operate when the battery voltage is 13v or higher and I want to run the FBH without the engine running. I should probably get the remote.

16th January 2024, 19:25	#5
Mike Trident Posted a thing or two Rover 75 CDTi Saloon & Citroen C1 Join Date: Jun 2016 Location: Oakenshaw, Near Bradford Posts: 1,622 Thanks: 385 Thanked 552 Times in 328 Posts	There is no switch as standard, it should fire up at temperatures below 5 deg. I've fitted a switch to mine as I think 5 deg is actually too low, I generally turn it on manually at 10 or below, or let it do its own thing if its under 5. I also have it wired up so I can send it a text to start up the FBH, or a different text to start up the FBH followed by the heater blower 10 mins later, and turning off after 20 mins total as to not flatten the battery. __________________ Rover 75 2.0 CDTi (131Ps) Conn SE Saloon. (Manual) 160 Remap, cruise control, electric window blind, temp gauge, Real walnut / ZT interior, FBH with GSM control. BORN Tuesday, 5th October 2004 @ 12:35:52 This vehicle was the 104,679th 75 to run off the production line, out of 112,381 This vehicle was the 3,318th 75 CDT Connoisseur SE (135) to be made out of 4,744 This vehicle was the 12,440th 75 in Starlight Silver (code: MBB) to be made out of 14,280 Starlight Silver 75s

7th January 2024, 21:17	#2
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,926 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	I dot think there is a separate switch, I would have thought it part of the temperature sensor. If you want a remote, PM Devilish. You could go flash and start it by text message You could manually earth one of the pins in the plug that fits into the FBH, this will start the FBH. macafee2

10th January 2024, 13:57	#3
alan richard Avid contributor 75 Tourer cdti Join Date: Jul 2012 Location: Melton Mowbray Posts: 244 Thanks: 62 Thanked 23 Times in 22 Posts	The 5 degree switch, is an existing thermostat mounted at the front which should be wired back to the FBH plug already for the 'auxiliary heating' mode. I understand it puts +12v to pin 1 of the FBH (citation required or I'll double check the wiring diagram later) If the FBH is a 98570B model - -ve to blank pin 3 will start. -A