Turning Your FBH On/Off Via Text...... - Page 8

Rick-sta · 2nd October 2015, 13:23

Hi Guys quick question, I am about to buy a relay which will be programmed for me. I have asked it to be programmed so that relay one is on for 30 mins (the FBH) and relay 2 is on for 15mins (the heater controls). So the way it would work is the FBH would come on immediately and then after a 15 min delay the heater controls would come on, before both turn off together after 30 mins.

Does this sound like good timings to warm up the car, or is this too long or too short?

thanks,

trikey · 2nd October 2015, 16:33

My fbh takes about five mins to warm up fully, i have my heaters coming on at the same time, dont suppose it matters reslly, its going to be toasty which ever way you do it

Rick-sta · 2nd October 2015, 16:40

Quote:

Originally Posted by trikey

My fbh takes about five mins to warm up fully, i have my heaters coming on at the same time, dont suppose it matters reslly, its going to be toasty which ever way you do it

Is that 5 minutes whilst the engine is off? I thought the FBH takes about 30 mins to reach full temperature? If it's that quick when I might just time the blowers to turn on after 5 mins and then everything to turn off after about 15 or 20 mins.

trikey · 2nd October 2015, 16:44

Mine gets up to temp after five mins

on a frosty morning you can see the screen defrost almost straight away.

Rick-sta · 2nd October 2015, 17:44

Quote:

Originally Posted by trikey

Mine gets up to temp after five mins

on a frosty morning you can see the screen defrost almost straight away.

Ive ordered my relay, have asked for it to be set so that the fbh runs for 20 mins and the heater blowers turn on after 5 mins and run for 15 mins, so both turn off together at 20 mins

HarryM1BYT · 3rd October 2015, 15:28

Quote:

Originally Posted by Rick-sta

Ive ordered my relay, have asked for it to be set so that the fbh runs for 20 mins and the heater blowers turn on after 5 mins and run for 15 mins, so both turn off together at 20 mins

How quickly it gets up to temperature, depends upon how cold the coolant is to begin with. I suggested a while back, that a better way to trigger the cabin system to life, was to have a thermal switch on the pipe, where it enters the heater matrix. So it closes its contacts when sufficient heat appears at the matrix and the cabin fan comes on.

brianw · 3rd October 2015, 17:38

I think I am right in saying that if you have the earlier model fbh that there is an output triggered once it gets up to a certain temperature that you can use to switch on the heater.

steveo · 3rd October 2015, 17:44

Hi all
Sorry to hijack thread but what wires have to be connected on the early fbh if I wanted to fit an original timer ie would I have to run a separate feed into the engine bay
Fbh came from a 2001 car and mine is a 2003.
Sorry again for hijack but there must be other people interested in the answer.
Regards
Steve

Duotone · 3rd October 2015, 17:57

Quote:

Originally Posted by steveo

Hi all
Sorry to hijack thread but what wires have to be connected on the early fbh if I wanted to fit an original timer ie would I have to run a separate feed into the engine bay
Fbh came from a 2001 car and mine is a 2003.
Sorry again for hijack but there must be other people interested in the answer.
Regards
Steve

If you have a FBH with the model number shown below.

Then you connect pin 3 to earth via a switch or timer.

If your FBH does not have the model number 985 then you connect pin 3 to +12v via a switch or timer.

Dave T

steveo · 3rd October 2015, 18:45

Hi Dave
Thank you for your reply mine must be the later type as it only fires with 12+ on pin 3
I will get a wire into the engine bay and wire to timer

Thanks again
Regards
Steve

2nd October 2015, 13:23	#71
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,532 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	Hi Guys quick question, I am about to buy a relay which will be programmed for me. I have asked it to be programmed so that relay one is on for 30 mins (the FBH) and relay 2 is on for 15mins (the heater controls). So the way it would work is the FBH would come on immediately and then after a 15 min delay the heater controls would come on, before both turn off together after 30 mins. Does this sound like good timings to warm up the car, or is this too long or too short? thanks, __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

2nd October 2015, 16:33	#72
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,763 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	My fbh takes about five mins to warm up fully, i have my heaters coming on at the same time, dont suppose it matters reslly, its going to be toasty which ever way you do it __________________ Lest we forget..

2nd October 2015, 16:44	#74
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,763 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Mine gets up to temp after five mins on a frosty morning you can see the screen defrost almost straight away. __________________ Lest we forget..

3rd October 2015, 17:44	#78
steveo I really should get out more....... None Join Date: Sep 2010 Location: N/a Posts: 2,108 Thanks: 1,369 Thanked 551 Times in 386 Posts	Thread Hi all Sorry to hijack thread but what wires have to be connected on the early fbh if I wanted to fit an original timer ie would I have to run a separate feed into the engine bay Fbh came from a 2001 car and mine is a 2003. Sorry again for hijack but there must be other people interested in the answer. Regards Steve

3rd October 2015, 18:45	#80
steveo I really should get out more....... None Join Date: Sep 2010 Location: N/a Posts: 2,108 Thanks: 1,369 Thanked 551 Times in 386 Posts	Thank you Hi Dave Thank you for your reply mine must be the later type as it only fires with 12+ on pin 3 I will get a wire into the engine bay and wire to timer Thanks again Regards Steve

3rd October 2015, 17:38	#77
brianw Gets stuck in Rover 75 CDT Connoisseur SE Rover 75 1.8 Auto Connie Join Date: Nov 2011 Location: Aldershot Posts: 921 Thanks: 126 Thanked 119 Times in 79 Posts	I think I am right in saying that if you have the earlier model fbh that there is an output triggered once it gets up to a certain temperature that you can use to switch on the heater.