REFUsol 20K-2T (853P020.200)
User manual
Note: the above table is our general fault ID list, all fault IDs of this inverter can be
found in the above table.
8.2. Maintenance
Inverters generally do not need any daily or routine maintenance. But ensure
heat sink should not be blocked by dust, dirt, or any other items. Before the
cleaning, make sure that the DC SWITCH is turned OFF and the circuit breaker
between inverter and electrical grid is turned OFF. Wait at least for 5 minutes
before the Cleaning.
Inverter cleaning
Please clean the inverter with an air blower, a dry & soft cloth, or a soft bristle
brush. Do NOT clean the inverter with water, corrosive chemicals, detergent, etc.
Heat sink cleaning
For the long-term proper operation of inverters, ensure there is enough space
around the heat sink for ventilation, check the heat sink for blockage (dust, snow,
etc.) and clean them if they exist. Please clean the heat sink with an air blower, a
dry & soft cloth, or a soft bristle brush. Do NOT clean the heat sink with water,
corrosive chemicals, detergent, etc.
Fan cleaning
For inverter REFUSOL 20K-2T (853P020.200) with fans, please check if inverter
have abnormal sound when inverter is operating. Check if fan on cracks, replace a
new fan when necessary. Refers to below section.
8.3. Fan Maintenance
For REFUSOL 20K-2T (853P020.200) series inverter with fans, if fan is broken or not
working properly may cause inverter heat dissipation issue and effect the working
efficiency of inverter. Thus, fans need to be regularly cleaned and maintained,
details operating as below:
Step 1: Closed inverter, check the wiring side to ensure all electrical connection of
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