![SolarEdge SE3K-N4 Installation Manual Download Page 76](http://html1.mh-extra.com/html/solaredge/se3k-n4/se3k-n4_installation-manual_1313739076.webp)
Appendix D: External Fan Maintenance and
Replacement
The Primary and Secondary Units have two fans each: one is internal and the other is accessible from the
outside of the unit. This appendix describes external fan replacement.
A fan replacement kit is available from SolarEdge.
Figure 40: Primary Unit (left) and Secondary Unit (right) external fans
Fan Maintenance
At least once a year, open the fan screen and clean the accumulated dust using a brush.
If you receive a
Not Working
Fan Status notification via the SetApp replace the fan as described in the
following section.
External Fan Replacement
1. Turn OFF the inverter ON/OFF switch, and wait until the green LED is blinking , indicating that the DC
voltage is safe (<50V), or wait five minutes before continuing to the next step.
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel.
3. Use a standard screwdriver to unfasten the single screw of the fan cover and open the fan door.
Figure 41: Fan door open
4. Disconnect the fan connector and remove the fan.
Figure 42: Fan connector
Appendix D: External Fan Maintenance and Replacement
Three Phase Inverter with synergy technology Guide MAN-01-00402-1.1
75