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Electric Windows Fuse Value

burrow01

burrow01

PCGB Member
Member
Hi

Can anyone confirm the correct fuse to use for the electric windows?

I currently have a 25A fuse in which has blown twice in the last two weeks - just need to confirm if this is the correct value and I have a problem with the windows, or if it should be a higher value

Pete
 
hi,says it should be 30 amp in fuse slot 4,protecting the circuits for : electric windows and heated mirrors.
Hope that helps
 
One would assume that the fuse is expected to protect the windows & the heated mirrors even when they're all being operated at the same time. So on that basis, each window (ignoring the mirrors for the moment) ought to be less than 15A. So if a 25A fuse is blowing when only one window is being operated I would suspect that there might be a problem with the motor - perhaps the window is sticking.

Firstly, does the fuse blow when only one window is being operated? If so you may need to check the current across the fuse connector (if you have an ammeter) - initially with nothing operated (in case there is something else causing a high drain) then each window in turn. Take care if you're checking across the fuse connectors that you don't short anything out. If one of the windows has a much higher consumption then that's your culprit. But it may just be a case of checking that there is nothing causing the window to jam mometarily.

Hope the above helps.

Regards
Anton
 

ORIGINAL: szklarek

.... But it may just be a case of checking that there is nothing causing the window to jam mometarily.
Click to expand...

Agreed, although I've been impressed by what I've seen with frozen windows in the winter and the fuse not blowing (every other car I've had with electric windows has blown fuses on frosty mornings - I tend to open the window to help me reverse around corner out of drive). The 993 tries to open the window and I realise it has frozen and I stop pressing the switch all quick enough for the circuit to survive.
 

ORIGINAL: szklarek

One would assume that the fuse is expected to protect the windows & the heated mirrors even when they're all being operated at the same time. So on that basis, each window (ignoring the mirrors for the moment) ought to be less than 15A. So if a 25A fuse is blowing when only one window is being operated I would suspect that there might be a problem with the motor - perhaps the window is sticking.

Firstly, does the fuse blow when only one window is being operated? If so you may need to check the current across the fuse connector (if you have an ammeter) - initially with nothing operated (in case there is something else causing a high drain) then each window in turn. Take care if you're checking across the fuse connectors that you don't short anything out. If one of the windows has a much higher consumption then that's your culprit. But it may just be a case of checking that there is nothing causing the window to jam mometarily.

Hope the above helps.

Regards
Anton
Click to expand...


Thanks - top tip

Although the fues blew this time when I was operating both windows at the same time, but will check as you suggest

cheers

Pete
 
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