Strange hevac problem

P38crazy · Dec 17, 2013

Hi Everyone I have a 1998 RR 2.5dse with a strange problem my hevac screen lights up but the screen is blank and none of the buttons on it will work I.e heated seats, heated screen etc I no the unit is in fully working order tho as I tried it in my brothers p38 and I also tried his in my car anyone got any ideas

doz · Dec 17, 2013

What happened when you tried his in your car? Did it work? Was the little "book" displayed?

gfromleeds · Dec 17, 2013

Fuse?

P38crazy · Dec 17, 2013

Worked fine when I plugged it in my brothers and when it's plugged in mine all that happens is the screen lights up but it's completely blank I've checked the fuses and they all seem fine so I'm stuck really

doz · Dec 17, 2013

Wonder if a session on the diagnostics will show something

Grit Valve · Dec 17, 2013

So you plugged yours in bros and it works but not in yours

What does your bros one do in yours?

P38crazy · Dec 17, 2013

Yeah it works perfect in my bros car and his does exactly the same when it's plugged in mine just lights up but the screens blank an none of the buttons will work or light up. I was hoping to use diagnostics as a last resort

Grit Valve · Dec 17, 2013

Did you check all the wires on the connector block give em a wiggle while the units plugged in if not you can check the button and feeds in the diagnostics

P38crazy · Dec 17, 2013

Yeah I've tried wiggling all the connectors think I'm gonna have to get it plugged in

doz · Dec 17, 2013

Put up your address. There maybe a member local to you who can help with the diagnostics

P38crazy · Dec 17, 2013

Anyone near Witney Oxfordshire ox296xe who can help

gfromleeds · Dec 17, 2013

Sounds like its not getting power
It lights up from a different feed

wammers · Dec 17, 2013

Hevac has three power feeds. Up to MY 99. Fuse 42, 10 amp. Fuse 17, 10 amp. Fuse 8, 30 amp. MY1999 and on fuse 42, 10 amp. Fuse 35, 10 amp. Fuse 8, 30 amp.

P38crazy · Dec 17, 2013

Ohh right didn't no that just assumed it would be the same power source for it all il have to try an look into the power

P38crazy · Dec 17, 2013

wammers said:
Hevac has three power feeds. Up to MY 99. Fuse 42, 10 amp. Fuse 17, 10 amp. Fuse 8, 30 amp. MY1999 and on fuse 42, 10 amp. Fuse 35, 10 amp. Fuse 8, 30 amp.

Cheers for that il check them all tomorrow

gfromleeds · Dec 17, 2013

Dont just check the fuses if you can check theres power to them

P38crazy · Dec 17, 2013

Yep will do will let you no what I find
Thanks for the help guys

P38crazy · Dec 18, 2013

So I've checked the fuses and checked for power at them and there is so I'm stumped I did have a thought did the previous owner try upgrading it from a manual hevac unit to the digital one so did LR put the manual one in a 98 RR ?

gfromleeds · Dec 18, 2013

They did on the bottom of the range ones without ac
But would be unlikely he swoped it as there's tons of work with fiting blend motors flaps ect...
I still think you have a power feed issue

P38crazy · Dec 18, 2013

Oh right was just a thought didn't realise it would be so much work so your probably right about being a power issue I'm at a loose end with it lol

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