Can the above electrical switch on top of the units be changed without the loss of fluid. Is it a case of just changing a switch not disturbing the brake fluid line.
Pressure Differential Warning Light.
Sep 18, 2003
1 Replies
You can just reset the switch as I recall, just remove it and put it back in. Very often, after a pressure imbalance occurs, the whole junction box needs to be replaced since the O rings on the pistons get mauled by travelling into normally unused cylinder territory (which has become abrasive and corroded from disuse) when an imbalance occurs. The symptom is frequent relights of the warning light after resetting the switch.
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