Huawei 2064 Device Fault | Faisalabad, Lahore

Huawei SUN2000 shows Device Fault (2064) or all three lights steady red

Short answer

Alarm 2064 means an unrecoverable fault on a circuit inside the Huawei inverter. Huawei's step is to switch the AC and DC off, wait five minutes and switch on; if it persists, contact support. On SUN2000-L1, all three LEDs steady red means hardware failure and the inverter needs replacing.

What you will see

2064 in FusionSolar
All LEDs steady red

Why it happens

An internal component has failed.

Diagram

Internal fault: one restart, then service

012064 or all LEDs steady red
02Switch AC and DC off, wait 5 minutes
03Switch on
04Comes back?
05Warranty case with serial number

Huawei SUN2000 inverters; read the alarm ID and cause ID in FusionSolar.

What you can check yourself

Restart once in the correct order
Note the cause ID

What not to do

Do not keep restarting
Do not open the inverter

When to call us

Read the alarm history
Raise a Huawei warranty case with serial number

Warranty cases

We collect logs and serial numbers and help raise Huawei warranty cases from Faisalabad and Lahore.

Send us

the alarm, cause ID and inverter serial number