Fuel burning heater problem - Page 2

slovcan · 20th June 2018, 23:03

Quote:

Originally Posted by Devilish

I would not expect anything less from a used FBH,

I have bench tested more than 50, only 2 of them had a faultless PCB.

Brand new or not, you may have been unfortunate to have a PCB or glow plug problem.

The FBH is new, but he tried a used PCB in case the original might have been defective.

ROD1 · 21st June 2018, 17:18

This morning I earthed Pin 3 on the 98570B PCB and it fired up and ran a full cycle, also on Pin 1. I reinstalled the original 98570D PCB and it also fired up and ran full cycle on Pin 1T but not Pin 3. PUZZLED BUT PLEASED

Next step to fit Webasto 1533 Timer!

Many thanks for all helpfull posts.

Special thanks to Trebor for his invaluable help and experience:

trebor · 21st June 2018, 19:27

Glad you got it sorted Ray, sounds like you have 2 different PCBs, the Freelander FBH fires from pin 1 instead of pin 3,the 75 is the opposite

Devilish · 21st June 2018, 23:04

Just lockout then. After 3 failed start up attempts, the PCB will lockout any start up attempts until the PCB is reset through disconnection, which you did when you removed it, and put it back. Same with the used one you tried, that was probably locked out also because of a faulty glow plug.

21st June 2018, 17:18	#12
ROD1 Regular poster CDTI Contemporary SE (A) 2.5 V6 Contemporary SE (A) 2.5 V6 Connoisseur SE (A) Join Date: Jul 2009 Location: Muir of Ord Posts: 94 Thanks: 49 Thanked 39 Times in 11 Posts	End of Saga This morning I earthed Pin 3 on the 98570B PCB and it fired up and ran a full cycle, also on Pin 1. I reinstalled the original 98570D PCB and it also fired up and ran full cycle on Pin 1T but not Pin 3. PUZZLED BUT PLEASED Next step to fit Webasto 1533 Timer! Many thanks for all helpfull posts. Special thanks to Trebor for his invaluable help and experience: __________________ ROD1 Last edited by ROD1; 21st June 2018 at 17:24..

21st June 2018, 19:27	#13
trebor This is my second home Rover 75 CDTi Connoisseur SE & MG ZT Saloon 190 Join Date: Jun 2007 Location: Coven Posts: 12,523 Thanks: 526 Thanked 1,877 Times in 885 Posts	Glad you got it sorted Ray, sounds like you have 2 different PCBs, the Freelander FBH fires from pin 1 instead of pin 3,the 75 is the opposite __________________ www.midlandsnanomeets.co.uk Robs Car Gallery Coven near Wolverhampton WV9 2000 Cowley Built Rover 75 2.0 V6 Club SE/ Atlantic Blue/ Sandstone/Walnut (daily driver) 2003 Land Rover Freelander 1 TD4 HSE Helsinki Blue/Black Leather (swmbo daily driver)

21st June 2018, 23:04	#14
Devilish Been round the block 75 Tourer Join Date: Apr 2009 Location: Cannock Posts: 4,125 Thanks: 3 Thanked 189 Times in 121 Posts	Just lockout then. After 3 failed start up attempts, the PCB will lockout any start up attempts until the PCB is reset through disconnection, which you did when you removed it, and put it back. Same with the used one you tried, that was probably locked out also because of a faulty glow plug. __________________ If at first you don't succeed, hide the evidence