What you will see
- Backup drops when heavy loads start
- Code 17 immediately on backup
Why it happens
Overload, low battery or wiring short.
Diagram
Why backup voltage drops
Too much load
Reduce backup loads.
Low or hot/cold battery
Battery output is limited.
Short on backup wiring
Code 17: fix wiring.
What you can check yourself
- Reduce backup loads
- Let the battery recharge
What not to do
- Do not connect grid to the backup port
When to call us
- Fix backup wiring
- Review loads
Load division
We plan SAJ backup circuits.
Send us
list of backup loads and the alarm