Typical. I've had my car for almost two years and hardly ever needed to use my fron heated screen, and a few days ago I tried it and nothing happened. The light didn't come on, on the button, and neither did the light for the back screen. I did press them a few times, so I wasn't sure if they were on or off and it was the lights not working, but I assume it was the while thing.

I've just checked fuse 9 under the bonnet, and 26 and 27 behind the glove box. All looked okay.

I noticed there is a relay R2 under the bonnet, but I didn't know if that can cause this, or how to check if it's broken. Would a multi-meter help?

I've seen people mention similar thing here (half working, only front, etc), but this looks like all screen heating is off, and LEDs.

Any ideas?

It's a March 2013 model.

Take it to ford dealer to fix, still under warranty.

Yep, I've booked it in. I'd thought of that yesterday, but I also thought there may be a very easy known fix for it.

Getting it checked properly is the best way.

Afternoon Paul.

I've got the same issue in my works Fiesta Van 62 plate. Only noticed it the other week when there was a bit of condensation on the rear screen.

Did you find out what the issue was?

You know my windscreen heaters only work when the windows are misted or frosted, when the windows are clear they turn off by themselves.

If I try to turn them on again the switches don't light up.

Unsure if this a add on on the Titanium version though!

54 minutes ago, Ian Lanc said:

You know my windscreen heaters only work when the windows are misted or frosted, when the windows are clear they turn off by themselves.

If I try to turn them on again the switches don't light up.

Unsure if this a add on on the Titanium version though!

Hmm that's strange, the only thing I know of is the front heated screen will auto shut off after 4 minutes of use but I've been able to turn it back on after that with no issues.

3 minutes ago, Pullock said:

Hmm that's strange, the only thing I know of is the front heated screen will auto shut off after 4 minutes of use but I've been able to turn it back on after that with no issues.

True mate, never been able to turn them back on, but if the windows mist up again, they will work again, if the windows are all clear the buttons do naff all.

23 minutes ago, Ian Lanc said:

True mate, never been able to turn them back on, but if the windows mist up again, they will work again, if the windows are all clear the buttons do naff all.

Maybe some sort of sensor to avoid using it by accident/wasting fuel on the titanium? 

7 minutes ago, Pullock said:

Maybe some sort of sensor to avoid using it by accident/wasting fuel on the titanium? 

Possible!

4 minutes ago, Ian Lanc said:

Possible!

I could do with that after I tried to use mine to demist the windscreen and it wasn't working, I was getting pretty worried until I realized it was just the rain coming down so heavy it looked like mist! 

Hi,

Did you ever get anywhere with this, mine is a 2013 Titanium and displaying exact same fault. Would love to know if you got a resolution.

Got mine booked in at the garage on the 24th but would be great if you had any info on yours.

Tony.

Its a Ford design fault, the wiper box/rods smack against the thin ribbons that power the window heater.

 

Explained here:

 

Hi,

I can see how that would effect the front screen and potentially stop one side of the screen from operating, however both my front and rear screens are not even switching on at the switch, the little lights on the switches do not light up at all.

Tony.

On 02/09/2016 at 3:50 PM, Heydude said:

Hi,

Did you ever get anywhere with this, mine is a 2013 Titanium and displaying exact same fault. Would love to know if you got a resolution.

Got mine booked in at the garage on the 24th but would be great if you had any info on yours.

Tony.

 

Just bought a titanium fiesta and the screens won’t work ! 

Found out I haven’t been using the master key and the screens don’t work with the spare one ! 

Why wouldn't the screens work with a spare key?  

On 02/09/2016 at 5:10 PM, m1tch said:

Its a Ford design fault, the wiper box/rods smack against the thin ribbons that power the window heater.

 

Explained here:

 

With my mk6.5 fiesta I'd say I only see one strip work to heat the front windscreen. I might look into this and see the condition of those ribbons. 

10 hours ago, TomsFocus said:

Why wouldn't the screens work with a spare key?  

Can’t answer that one I’ve just bought a 3 yr old fiesta and had the problem one key is the master key and the spare works everything apart from the heated windows ! It’s a mystery but there is s way of programming them apparently 

so your saying you press either the front or rear heated windscreen buttons and they dont iluminate?

Same issue with my fiesta has anyone found a fix ? Thanks.

On 01/11/2017 at 8:42 PM, AndyH69 said:

Can’t answer that one I’ve just bought a 3 yr old fiesta and had the problem one key is the master key and the spare works everything apart from the heated windows ! It’s a mystery but there is s way of programming them apparently 

Take it back to the dealer if it doesn't work with the spare. Shouldn't be up to you to fix it. I have a 3 year old zetec and both my keys (both flip keys, exactly the same if they still make a standard one) work the same.

After all that the problem is the car battery

the first thing that the ecu stops is the screens as the power voyage is high

 

On 11/10/2017 at 1:25 PM, AndyH69 said:

After all that the problem is the car battery

the first thing that the ecu stops is the screens as the power voyage is high

 

So this is a battery problem, what is the solution replace the battery ?

Is it because the battery has worn out or certain batteries cannot take the load ?

Batteries tend to die around 5 years old some sooner depends on the load modern cars have so much technology this buts a strain on the battery 

I've just had a garage report on the same issue. They told me it was a failure of the HVAC Module , and to replace it would cost £419.91. Since I use the heated screens only very few times in the year, I feel that I cannot justify this high cost, and will therefore do without heated screens.