What you will see
- F44 when one phase goes off
- F45 at busy hours
- F46 after new installation or rewiring
Why it happens
A blown phase fuse, an overloaded phase or swapped wiring at installation.
Diagram
Three-phase supply faults
F44 phase loss
One phase has dropped.
F45 imbalance
Phase voltages differ too much.
F46 sequence
Wired in the wrong phase order.
What you can check yourself
- Check whether all phases are on in the house
What not to do
- Do not swap wires yourself
When to call us
- Measure each phase
- Correct phase order
- Rebalance loads or raise a DISCO complaint
Three-phase supply
We measure each phase for GoodWe three-phase systems in Faisalabad and Lahore before deciding the fix.
Send us
alarm photos and meter phase readings