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Error codes by brand

Deye error codes

137 codes documented in Deye's inverter and battery manuals. Pick yours to see what it means, what you can safely check, and when to call your installer.

WattMate is not affiliated with Deye. This page summarises Deye's own published documentation; your installer and Deye are the authority on your system. WattMate doesn't repair systems or make site visits.

Battery codes

  • BMS faultBMS fault detected
  • Charge low temperature protectionBattery temperature is too low for charging
  • Charge or discharge high temperature protectionBattery temperature exceeds safe levels
  • Discharge low temperature protectionBattery temperature is too low for discharging
  • Electrochemical cell faultCell voltage low or unbalanced
  • F001Excessive total pressure
  • F002The total pressure is too low
  • F003Charging temperature is too high
  • F004High discharge temperature
  • F005The charging temperature is too low
  • F006The discharge temperature is too low
  • F007Excessive differential pressure
  • F008Excessive temperature differentials
  • F08GFDI Relay Failure
  • F009Cell overvoltage
  • F010Cell undervoltage
  • F011The temperature of the precharge resistance is too high
  • F012The temperature of the BMS connector is too high
  • F013The BMU connector temperature is too high
  • F13Working mode change
  • F014Charging current fault
  • F015Discharge current fault
  • F016High SOC fault
  • F017Insulation fault
  • F018The heating film is too high
  • F18AC over current fault
  • F019The SOC is too low
  • F020The total voltage is too low
  • F20DC over current fault
  • F021Total positive relay bonding
  • F022The charging relay is glued
  • F22Tz Emerg Stop Fault
  • F023The heating relay is glued
  • F23AC leakage current is transient over current
  • F024Ultimate protection triggered
  • F24DC insulation impedance failure
  • F025Abnormal supply voltage
  • F026Blown fuse
  • F26The DC busbar is unbalanced
  • F027The BMU repeatedly fails
  • F028The BMS is faulty repeatedly
  • F029The internal CAN communication fails
  • F29Parallel CANBus fault
  • F030The PCS CAN communication fails
  • F031The PCS RS485 communication fails
  • F032The PCS RS485 communication is abnormal
  • F033The FUSE total pressure collection is abnormal
  • F34AC Overcurrent fault
  • F034Abnormal internal total pressure collection
  • F35No AC grid
  • F035The Mot total pressure collection is abnormal
  • F036The heating total pressure collection is abnormal
  • F037Voltage collection fault
  • F038Temperature acquisition fault
  • F039Current acquisition fault
  • F040Current module fault
  • F041Total positive relay drive failure
  • F41Parallel system stop
  • F042Charging relay drive failure
  • F42AC line low voltage
  • F043Discharge relay drive failure
  • F044Heating relay drive failure
  • F045The EEPROM storage is faulty
  • F046The precharge failed
  • F47AC over frequency
  • F047The charging voltage is too low
  • F048The BMU communication is faulty
  • F48AC lower frequency
  • F049The number of BMUs is abnormal
  • F050Temperature collection of the BMS connector is abnormal
  • F051The temperature collection of the BMU connector is abnormal
  • F052PACK thermal runaway fault
  • F053PACK fire failure
  • F054TCP connection failure
  • F055The W5500SPI communication fails
  • F056LC communication loss
  • F56DC busbar voltage is too low
  • F057BMU AFE communication fails
  • F58BMS communication fault
  • F058Bluetooth initialization failed
  • F059The battery type does not match
  • F63ARC fault
  • F64Heat sink high temperature failure
  • ISOInsulation failure
  • OCCharging overcurrent
  • OFOther faults
  • OTOvertemperature
  • OVOvervoltage
  • Overvoltage protectionBattery voltage exceeds safe levels
  • Under voltage protectionBattery voltage is too low
  • UVUndervoltage

Inverter codes

  • BMS faultBMS fault detected
  • Charge High Temperature ProtectionProtection activated due to excessive cell temperature during charging.
  • Charge low temperature protectionMin cell temperature below operational range
  • Charge or discharge high temperature protectionMax cell temperature exceeded
  • Discharge low temperature protectionMin cell temperature is too low
  • Electrochemical cell faultCell voltage is low or unbalanced
  • F01

Find the Deye manual for your model

When to call your installer or the warranty line

Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.

If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.

Deye warranty phone
(02) 8529 6809
Deye warranty email
service_au@deye.com.cn
Deye service network
Open the manufacturer's service page
  1. Try the free fixes first

    Most faults are an isolator, a WiFi drop or a known error code. Start with the lookup and guides above.

  2. Then call the people who are responsible for it

    Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware.

    Find the manufacturer's warranty line
  3. If it's near the end of its life, see what replacing it would do

    A free energy audit report sizes a new system for your actual bills and shows what a replacement would do. Your first results need no details; your details only reach installers if you ask for the full report.

    Get your free energy audit report
DC input polarity reverse fault
  • F02DC insulation impedance permanent fault
  • F03DC leakage current fault
  • F04Ground fault GFDI
  • F05Read the memory error
  • F06Write the memory error
  • F07DC_START_Failure
  • F08GFDI grounding touch failure
  • F09IGBT damaged by excessive drop voltage
  • F10Auxiliary switch power supply failure
  • F11AC main contactor errors
  • F12AC auxiliary contactor errors
  • F13Working mode changed/Grid mode changed
  • F14DC firmware over current
  • F15AC firmware over current
  • F16GFCI(RCD) AC leakage current fault
  • F17Three phase current, over-current fault
  • F18AC over current fault of hardware
  • F19All hardware failure synthesis
  • F20DC over current fault of the hardware
  • F21Tz_HV_Overcurr_fault
  • F22Crash stop (if there is a stop button)
  • F23Tz_GFCI_OC_current is transient over current
  • F24DC insulation impedance failure
  • F25DC feedback fault
  • F26The DC busbar is unbalanced
  • F27DC end insulation error
  • F28Inverter 1 DC high fault
  • F29Parallel CAN Bus fault
  • F30AC main contactor failure
  • F31DC boost soft start
  • F32Inverter 2 dc high fault
  • F33AC over current
  • F34AC Overcurrent fault
  • F35No AC grid
  • F36AC grid phase error
  • F37AC three-phase voltage unbalance failure
  • F38AC three-phase current unbalance failure
  • F39AC over current(one cycle)
  • F40DC over current
  • F41AC Line W,U over voltage
  • F42AC Line W,U low voltage
  • F43AC Line V,W over voltage
  • F44AC Line V,W low voltage
  • F45AC Line U,V over voltage
  • F46AC Line U,V low voltage
  • F47AC Over frequency
  • F48AC lower frequency
  • F49U phase grid current DC component over current
  • F50V phase grid current DC component over current
  • F51W phase grid current DC component over current
  • F52AC inductor A,phase current DC current high
  • F53AC inductor B,phase current DC current high
  • F54AC inductor C,phase current DC current high
  • F55DC busbar voltage is too high
  • F56DC busbar voltage is too low
  • F57AC reverse irrigation
  • F58BMS communication fault
  • F59AC grid V over current
  • F60AC grid W over current
  • F61Reactor A phase over current
  • F62Reactor B phase over current
  • F63ARC fault
  • F64IGBT heat sink high temperature
  • Overvoltage protectionCell voltage exceeds safe limit
  • Under voltage protectionBattery voltage is too low