Installation and operation manual
9 Maintenance
CAUTION! Do not touch the heat sink when the inverter is in operation. Turn OFF the
inverter (see section 5.5) and allow for cooling down before cleaning.
CAUTION! Never use any solvents, abrasives or corrosive materials to clean the
inverter.
The OX series inverters require general maintenance to be performed once per year. Impurities
such as dust and dirt accumulation on the heat sink may negatively affect the inverter’s ability to
dissipate heat. Any dirt or dust can be removed with a cloth or soft brunch.
9.1 Fan Maintenance
If the fan does not work properly, the inverter will not be cooled effectively and inverter efficiency
may be reduced.
Broken fans should be cleaned or replaced following process below:
1. Turn off the ‘Grid ON/OFF’ switch on the inverter LCD (Advanced Settings).
2. Disconnect the AC power.
3. Turn the DC switch to "OFF" position.
4. Wait for 15 minutes at least.
5. Remove the 4 screws on the fan plate and pull out the fan assembly slowly.
6. Disconnect the fan connector carefully and take out the fan.
7. Clean or replace the fan. Assemble the fan on the rack.
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