{"id":2253,"date":"2026-01-13T07:37:01","date_gmt":"2026-01-13T07:37:01","guid":{"rendered":"https:\/\/wiki.solars.co.za\/?page_id=2253"},"modified":"2026-07-14T13:38:08","modified_gmt":"2026-07-14T11:38:08","slug":"deye-fault-codes-2","status":"publish","type":"page","link":"https:\/\/wiki.solars.co.za\/?page_id=2253","title":{"rendered":"Deye Fault Codes"},"content":{"rendered":"\t\t
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Deye Fault Codes <\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Inverters<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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GFDI _Relay_Failure<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. When inverter is in Split phase(120\/240Vac) or three-phase
system (120\/208Vac) system, the backup load port N line
needs to connect ground;
2. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F13 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Working mode change<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. When the grid type and frequency changed it will report F13;
2. When the battery mode was changed to \u201cNo battery\u201d mode,
it will report F13;
3. For some old FW version, it will report F13 when the system
work mode changed;
4, Generally, it will disappear automatically when shows F13;
5. 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;
6. Seek help from us, if can not go back to normal state.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F18 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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AC over current fault of hardware<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F20 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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DC over current fault of
the hardware<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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DC side over current fault
1. Check PV module connect and battery connect;
2. When in the off-grid mode, the inverter startup with big power
load, it may report F20. Please reduce the load power connected;
3. Turn off the DC switch and AC switch and then wait one
minute,then turn on the DC\/AC switch again;
4. Seek help from us, if can not go back to normal state.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Tz_EmergStop_Fault<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Please contact your installer for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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AC leakage current is
transient over current<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Leakage current fault
1. Check PV side cable ground connection.
2. Restart the system 2~3 times.
3. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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DC insulation impedance
failure<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The DC busbar is
unbalanced<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. Please wait for a while and check whether it is normal;
2. When the hybrid in split phase mode, and the load of L1 and
load of L2 is big different, it will report the F26.
3. Restart the system 2~3 times.
4. Seek help from us, if can not go back to normal state.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F29 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Parallel CANBus fault<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. When in parallel mode, check the parallel communication cable
connection and hybrid inverter communication address setting;
2. During the parallel system startup period, inverters will report F29.
when all inverters are in ON status, it will disappear automatically;
3. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F34 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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ACOvercurrent fault<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. Check the backup load connected, make sure it is in allowed
power range;
2. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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No AC grid<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F41 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Parallel system stop<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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1. Check the hybrid inverter working status. If there’s 1 pcs
hybrid inverter is in OFF status, the other hybrid inverters
may report F41 fault in parallel system.
2. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F42 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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AC line low voltage<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F47 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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AC over frequency<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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F48 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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AC lower frequency<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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DC busbar voltage is
too low<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

BMS communication fault<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t
\n\t\t\t\t\t

Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

1. it tells the communication between hybrid inverter and battery
BMS disconnected when”BMS_Err-Stop” is active;
2. if don\u2019t want to see this happen, you can disable
“BMS_Err-Stop” item on the LCD;
3. If the fault still exists, please contact us for help.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

\n\t\t\t\t\n\t\t\t\t\t
F63 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

ARC fault<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t
\n\t\t\t\t\t

Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

\n\t\t\t\t\n\t\t\t\t\t
F64 <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Heat sink high temperature
failure<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t
\n\t\t\t\t\t

Solution<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Deye Fault Codes Inverters F08 Description GFDI _Relay_Failure Solution 1. When inverter is in Split phase(120\/240Vac) or three-phasesystem (120\/208Vac) system, the backup load port N lineneeds to connect ground;2. If the fault still exists, please contact us for help. F13 Description Working mode change Solution 1. When the grid type and frequency changed it will […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2253","page","type-page","status-publish","hentry"],"yoast_head":"\nDeye Fault Codes - Central Solar Wiki<\/title>\n<meta name=\"description\" content=\"Find Deye fault codes, error descriptions, troubleshooting steps, and technical support to quickly diagnose inverter issues.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wiki.solars.co.za\/?page_id=2253\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deye Fault Codes - Central Solar Wiki\" \/>\n<meta property=\"og:description\" content=\"Find Deye fault codes, error descriptions, troubleshooting steps, and technical support to quickly diagnose inverter issues.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wiki.solars.co.za\/?page_id=2253\" \/>\n<meta property=\"og:site_name\" content=\"Central Solar Wiki\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-14T11:38:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/wiki.solars.co.za\/wp-content\/uploads\/2025\/11\/Logos-25-150x150.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/wiki.solars.co.za\\\/?page_id=2253\",\"url\":\"https:\\\/\\\/wiki.solars.co.za\\\/?page_id=2253\",\"name\":\"Deye Fault Codes - 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