Main Circuit Diagram; Maintenance; Clean Fan; Dc Switch Check - Goodwe GW250K-HT User Manual

7.2 Main Circuit Diagram

The main circuit diagram is shown as below:
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8 Product Maintenance
Regular maintenance will ensure service life and the best efficiency of the inverter.
Note: Before maintenance, turn off the AC circuit breaker, then the DC circuit breaker, and wait
for 5 minutes until the residual voltage is released.

8.1 Clean Fan

The external fan of the HT series inverter needs to be cleaned with a vacuum cleaner every year.
Remove the fan and give it a thorough clean.
1. Turn off the AC circuit breaker first, and then turn off the DC switch;
2. Wait for 5 minutes until the residual voltage is released and the fan stops running;
3. Remove the fan net;
Use a screwdriver to loosen the fan bracket
Carefully disassemble the fan net and fan as shown below. Do not pull out a single fan since
the internal circuit of the fan is still connected.
4. Clean with a soft brush, cloth, or compressed air; tighten the screws.

8.2 DC Switch Check

The DC switch requires no maintenance if it' s in regular use.
Although it' s not necessary, we still recommend you to:
• check the DC switch regularly:
• Turn the DC switch on and off 10 times continually once a year.
Turn the switch regularly can clean up the device and extend its service life.
Note: Turn off the AC circuit breaker first, and then turn off the DC switch.
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