Troubleshooting - Exalto MD1 223BDS Manual

MANUAL WIPER SYSTEMS

6. Troubleshooting

In this chapter, several malfunctions are mentioned combined with possible causes
and solutions. Please leave servicing to qualifi ed mechanics.
6.1 Wiper does not work a er switching on
• Possible causes:
1. Wiper switch is not working properly.
Solution: Test and replace it. Check if the current is (and keeps being) too high.
2. Burned or incorrectly sized fuse.
Solution: Test and replace it. Check if the current is (and keeps being) too high.
3. Electrical connections are wired incorrectly or might be damaged.
Solution: Measure the voltage across the motor and check all connections are correct.
4. The wiper motor has failed.
Solution: Replace the motor and check for excessive drag or high current.
6.2 Wiped area or park position is not correct
• Possible causes:
1. The wiper arm was placed without parking the motor fi rst.
Solution: Remove the wiper arm. Run the motor to the park position and re-install the
arm.
2. The wipe arc is set wrong or has changed due to high loads (e.g. spring pressure of
arms too high, excessive drag).
Solution: Determine the wiping arc if needed (see paragraph 5.4) and set the wiping arc
again (see paragraph 5.3).
3. The wires are connected incorrectly.
Solution: Check and reconnect the wiring (see the scheme in paragraph 3.3).
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