SOFAR BMS Fault ID157 | Faisalabad, Lahore

SOFAR hybrid shows BMS Communication Fault (ID157) or BMS version error (ID183–ID185)

Short answer

ID157 means the SOFAR hybrid cannot talk to the lithium battery's BMS. ID183 to ID185 mean the battery and inverter software versions do not match. SOFAR says to make sure the battery is compatible with the inverter, recommends CAN communication, and asks you to contact support for software upgrades.

What you will see

Battery shows no data or percentage
ID157 or ID183–185
Battery not charging or discharging

Why it happens

Without BMS data the inverter cannot charge safely. A loose or wrong cable, a battery that is off, an unapproved battery model or mismatched firmware all break the link.

Diagram

Inverter and battery must talk

Linked

Battery BMSCAN data

→

HybridCharges safely

No link

Battery BMSSilent

→

HybridID157

Common causes:

Wrong cableBattery offNot approvedFirmware mismatch

SOFAR HYD and ESI hybrids with lithium batteries.

What you can check yourself

Check the battery is switched on and its lights look normal
Confirm the battery model is approved for your SOFAR inverter
Note whether it started after an update

What not to do

Do not open battery terminals
Do not assume a battery works because its voltage matches

When to call us

Check the communication cable and port
Update or match firmware with SOFAR support
Verify battery protocol settings

Battery pairing

We check SOFAR and battery pairing for homes in Faisalabad, Lahore and across Punjab.

Send us

inverter and battery model labels and the Event List