Another irritating problem....but this one is a little odd. The wipers work perfectly at normal speed and fast speed, but are useless when on 'intermittant wipe'. They go up - stop - down - stop - up - stop.... etc instead of the usual up - down - stop - up - down -stop.
This seemed to start happening out of nowhere, which makes it even more baffling.
Am I needing a new wiper motor maybe?
Any help would be great.
Marc
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Switch is usualy first to go.But could be wrong?
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Steve
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I've got the same problem with my Rover 25, not sure whether this will apply to the 414 but from searching usenet and mg-rover forums I've gleaned the following:
When you use the wipers on slow/fast they're powered continuously by a circuit from the wiper stalk, on intermittant wipe they are powered for a second or two in order to get them started but they rely on a parking switch within the motor unit to complete a circuit to keep them running until they finish the wipe.
If the parking switch breaks then the motor stops as soon as power is removed. So what you're probably seeing is the intermittant controller pulsing the motor to get it started but as soon as soon as the pulse ends the wipers stop, stuck until the next pulse.
If it is the parking switch them you'd expect the wipers to fail to park in other situations - so stopping as soon as you switch them off or failing to park after a single wipe.
Do they park correctly on single wipe or after continuous use?
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superb reply thanks! Just double checked, and they don't park at all in normal/fast. They stop as soon as you switch them off.
Is the switch replaceable, or am I needing a new wiper motor unit?
cheers
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New motor is around £150 from rovers.Scrap yard 35,but make sure its tested before you buy.I did try repairing one but it was so full of corrosion and crud it wasnt repairable.They do suffer from water ingress which corrodes the insides
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Steve
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my local scrappy is pretty reasonable and guarantees his parts (if it's faulty he replaces).
cheers for the advice
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