Heated front windscreen not working on my car.

[TimNorwich]

Fiesta Mark 5 1.25

I press the button to turn it on and the light comes on, however it doesn't do anything (both sides of the screen not working) and the mist stays on the windscreen.

I don't think it could be the fuse as the light wouldn't be coming on?

Any help is much appreciated.

EDIT: I have looked in the owners manual and cannot find a fuse for the windscreen and believe it is on a relay instead?.

Thankyou very much,

Tim.
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Speedshite 50cc > Honda XR125L > Kawasaki GPZ 500 S > 02 Honda Hornet > 05 Honda CG125 winter hack > 04 Kawasaki ER-5 > 99 Honda Hornet 600 > Kawasaki GPZ 500 S > 99 Honda Hornet 600 > 05 Honda CBR600F > 01 Honda Hornet

[lukamon]

no such thing as an unfused electrics in a modern car. the switch is on a different circuit to the actual window as yes, it will have a relay
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killa wrote: Im an ass man myself

[blurredman]

Just be lucky you had one.


I don't have such luxuries as your car seems to have.
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CBT: 12/06/10, Theory: 22/09/10, Module 1: 09/11/10, Module 2: 19/01/11
Past: 1991 Honda CG125BR-J, 1992 (1980) Honda XL125S, 1996 Kawasaki GPZ500S, 1979 MZ TS150.
Current: 1973 MZ ES250/2 - 18k, 1979 Suzuki TS185ER - 10k, 1981 Honda CX500B - 91k, 1987 MZ ETZ250 (295cc) - 40k, 1989 MZ ETZ251 - 51k.

[Kickstart]

Hi

Would suspect there is a feed for the switch to power the on / off light and trigger the heated window (probably taken from the fused circuit for the dash lights). However it probably triggers a relay, and likely the relay has its own fused feed (or possibly has a fuse on the relay).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Chalky.]

It's not supposed to clear mist. It's designed to melt ice.

[TimNorwich]

https://i206.photobucket.com/albums/bb106/timmyboynorwich/IMG00416-20101022-1326.jpg

In the manual under the "Relays in the central fuse box" it has the heated front screen down as "Relay II" - Green. But looking under the bonnet nothing is clear.

I went through all the fuses in the Central fuse box and they are all fine.
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Speedshite 50cc > Honda XR125L > Kawasaki GPZ 500 S > 02 Honda Hornet > 05 Honda CG125 winter hack > 04 Kawasaki ER-5 > 99 Honda Hornet 600 > Kawasaki GPZ 500 S > 99 Honda Hornet 600 > 05 Honda CBR600F > 01 Honda Hornet

[Chalky.]

[The Artist]

Mist is cleared by putting fans on with heat...

Those tiny little wires running through the windscreen melt ice...

[Kickstart]

Hi

Your car mists up because warmer moist air (and breathing generates plenty of that) condenses on the cold windscreen. Warming the windscreen prevents it condensing, so warming it up using either the heater fan or a heated screen should stop it steaming up.

Air conditioning demists the screen by drying the air, removing the moisture.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[D O G]

I bloody hate these things. Every so often I realise the wires are there and focus on them, which is rather annoying. Thankfully I very rarely drive a Ford so don't have the problem. Shame, as I'm a Ford man. Can't see me owning any Ford built afer 2000 or whenever it was they brought them in.

[TimNorwich]

I don't even notice the wires
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Speedshite 50cc > Honda XR125L > Kawasaki GPZ 500 S > 02 Honda Hornet > 05 Honda CG125 winter hack > 04 Kawasaki ER-5 > 99 Honda Hornet 600 > Kawasaki GPZ 500 S > 99 Honda Hornet 600 > 05 Honda CBR600F > 01 Honda Hornet

[carvell]

[lukamon]

_used_ to have one in a fiesta st im gonna miss it this winter and btw, it does both, great for frosty mornings gone in 30 secs!
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killa wrote: Im an ass man myself

[carlosthejack...]

I love Mondeo. Had a Focus prior to the Megane I had last. Missed the heated screen sooooo much in the Renault. Glad I'm back with Ford, that screen's invaluable on a winter morning...
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