L4-Compressor Drive Module Ipm Fault - Toyotomi KURO Mini Service Manual

L4-Compressor drive module IPM fault

Error phenomenon
Explanation of error
Frequent
problematic part
Inspection procedure
and key points
Error code
LED light signal of
external panel
Cause: mainly because the compressor wire wrongly connected
Supply voltage, compressor wire, system pressure, external main
control panel, compressor
1. Check the ODU PCB board if there is any broken;
2. Check the compressor connecting wire if the wire is broken, or
not connect fasten.
3. Check the compressor if there is any broken.
After check mentioned 3 steps, if the L4 error is still occur, pls
check as the guidence of Error code "F1".
L0（Dc overvoltage error）
LED1
LED2
LED3
Flash
Flash
Light