Window Heater - Fuse Issue

[jptruck]

Just wanted to pass this along for posterity. Half my windshield defroster went kaput just in time for the recent ice storm. Apparently, it's a fuse issue, not a window issue. I went to replace the fuse myself, but the dealer advised against it. I took it to them and it was fixed in 20 minutes.

So, if your front defroster goes, try this fix first.

 

[Spoonito]

There is a SSM for this. SSM62417... I had the passenger side go out. They swapped both fuses for a 40amp fuse.

 

[jptruck]

Thanks.

 

[NASdiesel]

I've had the same issues.

 

[umbertob]

Posting the SSM for posterity...

Reference SSM62417
Models Range Rover Sport / L320
LR4 / L319
Title Heated Front Screen does not demist/ clear
Category Electrical
Last modified 23-Jan-2013 00:00:00
Symptom 205000 Electrical Accessories
Content

Issue: A customer may report that the Heated Front Screen does not demist/ clear when selected on 12/13MY only LR4/Discovery 4/ Range Rover Sport

Cause: The Heated Front Screen fuses located in the engine compartment fuse box may be inoperative. The fuse value will shortly be increased to a 40amp rating for both Heated Front Screen fuses.

Action: If any of the Heated Front Screen fuses are found to be inoperative and following circuit tests there does not appear to be an issue with the electrical wiring, fit 2 new 40amp rated fuses and re-check the operation of the Heated Front Screen. If it now operates correctly leave the 40Amp fuses in place otherwise continue with diagnosis as guided by Symptom Driven Diagnostics.

A Technical Service Bulletin will be launched shortly, detailing a service kit containing 2x 40amp and associated fuse box label. In the meantime fit the fuses only part number LR030046.

As far as I know, a TSB was never launched. Perhaps the problem was not as extensive as Land Rover initially feared.

 

[Ratatat]

This maybe an old thread, but it just helped me with my issue.

 

[ktm525]

My passenger side keeps blowing 40 fuses and there was some melting (fuse) and it was hard to remove so for now I am leaving well enough alone until the glass is pulled again. Obviously there is a serious short in there somewhere.