September 12, 2011, 1:27 pm
[quote name='mintalkin' timestamp='1315850091' post='143872']
it could be the switch in the fluid bottle stuck or faulty or defected wiring to the switch shorting across putting the light on.
Welcome to the forum mate,
Generally this type of sensor for the water level operates by two prongs submerged in the water
One being Positive + and the other being negative -
when they are both surrounded by water the small electrical current flows through the water linking the circuit thus sending a signal to the gem/Control unit indicating it is at a specific level and ok,
[font="Calibri"][size="3"]Then when the water drops below the level of one of the prongs the electrical current cannot flow and[/size][/font]
[size="3"][font="Calibri"]The signal is not received to the control unit which then raises an alarm on your dash.
my guess is that one or both of the prongs are caked with lime or gunk,
the step to cleaning this is not to use anything as abrasive as a Calgon dishwasher tablet as this could damage your paint work on the surface of the car when run through the system,[/font][/size]
[size="3"][font="Calibri"]try running out the contents of the bottle through the system,
do this in short runs, not all at once as you will strain the pump, its only designed to work for short periods so take your time emptying the contents.
Then try inserting a mix of vinegar (yes the stuff you put on your chips) and full strength washer fluid from Halfords or Tesco. Half fill the tank with this mix and leave it to sit overnight in the tank the vinegar will break down any lime in the bottle.
In the morning top up to full with hot water and again run the contents through the system this should solve the problem mate.
If not then it's something to do with the wiring. Well worth a try though[/font][/size]
[font="Calibri"][size="3"]also if working on the inside of the bottle or opening the system please be aware that it is known that the water content in your washer bottle can contain traces of malaria due to the stagnate levels continuously lying in the tank. So gloves and plenty of soap recommended