8.Limitation of Liability
In addition to the product warranty described above, the state and local laws and regulations
provide financial compensation for the product's power connection (including violation of
implied terms and warranties). The company hereby declares that the terms and conditions
of the product and the policy cannot and can only legally exclude all liability within a limited
scope.
Under the guidance of our company, customers return our products so that our company
can provide service of maintenance or replacement of products of the same value.
Customers need to pay the necessary freight and other related costs.
Any replacement or repair of the product will cover the remaining warranty period of the
product. If any part of the product or product is replaced by the company itself during the
warranty period, all rights and interests of the replacement product or component belong
to Ningbo Deye Inverter Technology Co., Ltd.
Factory warranty does not include damage due to the following reasons:
· Damage during transportation of equipment；
· Damage caused by incorrect installation or commissioning；
· Damage caused by failure to comply with operation instructions, installation instructions
or maintenance instructions；
· Damage caused by attempts to modify, alter or repair products；
· Damage caused by incorrect use or operation；
· Damage caused by insufficient ventilation of equipment；
· Damage caused by failure to comply with applicable safety standards or regulations；
· Damage caused by natural disasters or force majeure (e.g. floods, lightning, overvoltage,
storms, fires, etc.)
In addition, normal wear or any other failure will not affect the basic operation of the
product. Any external scratches, stains or natural mechanical wear does not represent a
defect in the product.
- 33 - - 34 -
Error code Description Solutions
F13 Working mode change
F18 AC over current fault
of hardware
F20
DC over current fault of
the hardware
F23
AC leakage current is
transient over current
F24
DC insulation impedance
failure
F26
The DC busbar is
unbalanced
F35 No AC grid
F42 AC line low voltage
F47 AC over frequency
Inverter work mode changed
1. wait for a minute and check;
2. Seek help from us, if can't go back to normal state.
AC side over current fault
1. Please check whether the backup load power and common
load power are within the range;
2. Restart and check whether it is in normal;
3. Seek help from us, if can not go back to normal state.
DC side over current fault
1. Check PV module connect and battery connect;
2. Turn off the DC switch and AC switch and then wait one
minute,then turn on the DC/AC switch again;
3. Seek help from us, if can not go back to normal state.
Leakage current fault
1. Check the cable of PV module and inverter;
2. Restart inverter;
3. Seek help from us, if can not go back to normal state.
PV isolation resistance is too low
1. Check the connection of PV panels and inverter is firmly and
correctly;
2. Check whether the PE cable of inverter is connected to ground;
3. Seek help from us, if can not go back to normal state.
1. Please wait for a while and check whether it is normal;
2. If still same, and turn off the DC switch and AC switch and
wait for one minute and then turn on the DC/AC switch;
3. Seek help from us, if can not go back to normal state.
No Utility
1. Please confirm grid is lost or not;
2. Check the grid connection is good or not;
3. Check the switch between inverter and grid is on or not;
4. Seek help from us, if can not go back to normal state.
Grid voltage fault
1. Check the AC voltage is in the range of standard voltage in
specification;
2. Check whether grid AC cables are firmly and correctly
connected;
3. Seek help from us, if can not go back to normal state.
Grid frequency out of range
1. Check the frequency is in the range of specification or not;
2. Check whether AC cables are firmly and correctly connected;
3. Seek help from us, if can not go back to normal state.
F48 AC lower frequency
Grid frequency out of range
1. Check the frequency is in the range of specification or not;
2. Check whether AC cables are firmly and correctly connected;
3. Seek help from us, if can not go back to normal state.
Chart 6-1 Fault information
F56
DC busbar voltage is
too low
F63 ARC fault
F64
Heat sink high temperature
failure
Battery voltage low
1. Check whether battery voltage is too low;
2. If the battery voltage is too low, using PV or grid to charge the
battery;
3. Seek help from us, if can not go back to normal state.
1. ARC fault detection is only for US market;
2. Check PV module cable connection and clear the fault;
3. Seek help from us, if can not go back to normal state.
Heat sink temperature is too high
1. Check whether the work environment temperature is too high;
2. Turn off the inverter for 10mins and restart;
3. Seek help from us, if can not go back to normal state.
Error code Description Solutions
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