SMA SUNNY ISLAND 6.0H - Cleaning the Fans

SMA Solar Technology AG 10 Cleaning and Maintenance
Operating Manual SI60H-80H-BE-en-20 75
10.7 Cleaning the Fans
If the Sunny Remote Control shows the warning W137 Derate exceptionally often, one of the fans is probably defective
or blocked.
Procedure:
2. Wait for the fans to stop rotating.
3. Check whether the fan guard is dusty or badly clogged.
If the fan guard is dusty, clean the fan guard with a vacuum cleaner or a soft brush.
If the fan guard is badly clogged, remove and clean the fan guard:
• Use a screwdriver to push the two locking tabs at the right-hand
edge of the fan guard to the right and remove them from the
retainer.
• Carefully remove the fan guard.
• Clean the fan guard with a soft brush, a paint brush, a cloth or compressed air.
4. Check whether the fan is soiled.
If the fan is soiled, remove the fan:
• Use a screwdriver to push the two locking tabs at the right-hand
edge of the fan guard to the right and remove them from the
retainer.
• Carefully remove the fan guard.
1.
:$51,1*
Danger to life from electric shock due to live voltage
High voltages are present inside the Sunny Island. When the enclosure lid is removed, live components can be
touched which can result in death or serious injury due to electric shock.
• Disconnect the Sunny Island from voltage sources (see Section8, page39).