IVGM5-8K LP2G1 hybrid inverters (fault code list, solid fault LED)
Felicity 89 error code
Parallel CAN communication failure: the CAN link between parallel inverters failed.
Likely causes
- Parallel CAN cable loose or damaged
- Missing or incorrect 120 ohm termination
- Duplicate or wrong CAN address
- One inverter powered down
Checks to run, in order
- 1Check the parallel CAN cables at every unit
- 2Confirm the 120 ohm termination is fitted as the manual requires
- 3Check each inverter's CAN address is unique
- 4Confirm every unit in the group is powered
Fixes
- Reseat or replace the CAN cable
- Fit the correct termination
- Correct the addresses and restart the group
When to escalate
If the CAN wiring and termination are correct and code 89 persists, escalate for communication-board service.
Fix it with the right tools
Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.
Before you open the inverter
- Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
- Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
- If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.
Questions installers ask
What does Felicity 89 mean?
Parallel CAN communication failure: the CAN link between parallel inverters failed.
How do I fix Felicity 89?
Reseat or replace the CAN cable Fit the correct termination Correct the addresses and restart the group
When should I escalate Felicity 89?
If the CAN wiring and termination are correct and code 89 persists, escalate for communication-board service.
Can I reset Felicity 89 myself?
Only after isolating the AC and DC sides and running the checks above. If Felicity 89 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Felicity 89?
Felicity 89 is documented for IVGM5-8K LP2G1 hybrid inverters (fault code list, solid fault LED). Confirm the code on your own unit's display or manual before ordering parts.
More Felicity error codes
- Felicity 04Low cell voltage / over-discharge protection.
- Felicity 05PV over-current fault: the PV input current exceeded the inverter's PV input limit.
- Felicity 18PV short-circuit fault on the PV input; in the warning list the same number means battery under-voltage alarm.
- Felicity 19Battery open-circuit alarm: the inverter no longer detects a battery on its terminals.
- Felicity 20Battery SOC low alarm: the battery's state of charge has fallen to the low-SOC warning threshold.
- Felicity 21BMS communication alarm: abnormal communication between battery and inverter in non-SOC mode.
Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.
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