faulty wipers and heater control panel

[platty]

Hello, I'm hoping someone can help,
we recently purchased our bongo and after a while first thing in the morning the windscreen wipers dont work, the heater/air con control panel doesnt light up and the electric windows dont work either, after driving for about 5 minutes, the heater/air con control panel lights up and everything works, could anyone please shed some light on my annoying little problem. thankyou

[g8dhe]

Some extra info needed;
Which version of the vehicle do you have ?
Which type of air con controls Manual or Electronic ?
Do you have a L/B fitted ?
Does the Demister or Cig lighters work during the first few minutes ?

[platty]

Hello, my bongo is a sgl3, 2.5 td 4x4, i dont have a leisure battery fitted and the heater controls are digital, im not sure if the cigarette lighter works when the fault is occuring, ill test it tomorrow, thanks a lot

[g8dhe]

Well the only "common" electrical aspect is that Wipers, Heater controls, Windows and Demister are all fed via the Ignition switch on what is referred to as the IG2 circuit - this is powered in the ON position but not in the ACC or ST positions, it could be a dirty/faulty ignition switch. If the radio and cig lighters work OK all the time then that would suggest just that one circuit is affected. Try spraying some switch cleaner onto the contacts if possible and then work the switch several times.

The Ignition switch is top centre in the diagram above fed by the 60 Amp fuse IG KEY.

[Velocette]

Well the only "common" electrical aspect is that Wipers, Heater controls, Windows and Demister are all fed via the Ignition switch on what is referred to as the IG2 circuit - this is powered in the ON position but not in the ACC or ST positions, it could be a dirty/faulty ignition switch. If the radio and cig lighters work OK all the time then that would suggest just that one circuit is affected. Try spraying some switch cleaner onto the contacts if possible and then work the switch several times.

The Ignition switch is top centre in the diagram above fed by the 60 Amp fuse IG KEY.

Could it be a bad connection to the back of the fusebox?

[Poohbear]

It could also just be a battery / alternator issue. When our alternator was failing and the battery voltage dropped one of the first things to stop working was the wipers, along with various other dashboard functions.