hello, I have a problem with my heckwischer… since the beginning of feb 2010, he always suspends, but then worked again and again. but since yesterday he doesn’t move anymore. have read the threat on the topic of january 2010, but he doesn’t understand it, or could not filter out any solution from it: what is a cem? and how can I find out what is broken: the relay or the motor itself? or even the contact on the switch lever? can it also be the security that is through (which I haven’t yet checked)? is there any single fuse only for the heckwischer? what measurements must arrive at the rear of the plug so that I know enough current arrives? I know questions about asking and no answer. sorry, I don’t understand much. am more the screwdriver…. and above all what can I do to make the thing wipe again? for tips I’m grateful.