Product Maintenance; Clean Fan; Dc Switch Check - Goodwe HT Series User Manual

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.
Startup sequence
1. Turn the circuit breaker on the AC side to "ON".
2. Turn the DC switch of the inverter to "ON".
Shutdown sequence
1. Turn the circuit breaker on the AC side to "OFF".
2. Turn the DC switch of the inverter to "OFF".
The inverter may be damaged if you do not follow the sequences above strictly.
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