编号：
GR-UM-C -00
49
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57
to 9.1.2.
9.1.2 Fan Maintenance
DANGER
●It must be carried out by qualified, trained personnel and comply
with all prevailing local code and regulations.
●Please disconnect the DC switch and AC switch before any
operation, and wait for at least 5 minutes until the internal bus
capacitance discharge completely.
WARNING
●
Do not use the air pump cleaning fan, which may cause fan damage.
When the Growatt Max series inverter work in high temperature environment, good ventilation and heat dissipation can
effectively reduce the chance of load derating . Inverter equipped with internal cooling fans, when the internal temperature
is too high, the fans work in to reduce the internal temperature. When the inverter is derating because of the internal
temperature is too high, the following are the possible reasons or solutions;
1
）
Fan is blocked or the heat sink gathers too much dust, it needs to clean the fan, fan cover or heat sink.
2
）
Fan is damaged, it need to replace the fan.
3
）
Poor ventilation of the installation location, it needs to select the appropriate installation location according to the basic
installation requirements.
Fan cleaning and replacement procedure;
1.Please ensure that the DC side and AC side of the inverter have been disconnected before cleaning or replacement of the
fan.
1
）
Turn off DC switch.
2
）
Disconnect DC terminals from inverter(
Users need tools to disconnect the DC connection terminals
）
3
）
Turn off AC switch
；
2. Remove the screws on the fan guards with a cross screwdriver. it is shown as below
