Solis inverter troubleshooting
This article covers common issues encountered during and after Solis inverter installations. Each issue includes likely causes and resolution steps. Problems are often inter-related — work through each cause systematically before escalating.
Battery communication failure (batt_comm_fail)
What it means: The Solis inverter cannot communicate with the battery over the CAN bus. This error appears in the Solis Cloud app as batt_comm_fail.
Likely causes and resolution steps:
Incorrect battery model set in the inverter
Incorrect inverter model set in the HV box
Battery error
Faulty CAN cable between HV box and inverter
No communication between KF1 and Solis inverter
What it means: The KF1 controller cannot communicate with the Solis inverter. This prevents remote control and monitoring of the inverter from the KanEL system.
Likely causes and resolution steps:
Old inverter firmware
Faulty or incorrectly specified cable between KF1 and inverter
Inverter range | Installation guide |
Solis 5–10K | support.kanel.se/kf1-solis-installation |
Solis 12–20K | support.kanel.se/kanel-kf1-to-solis-12-20k-installation |
Solis 30–50K | support.kanel.se/kanel-kf1-to-solis-30-50k-installation |
- Replace the cable if it does not meet the specified requirements or shows signs of damage