Kaisai 06RY1, Service Manual

Page: 94 / 114

M thermal Mono
94 200208
Midea
M
ther
ma
l Mo
no
Se
rvice M
an
ual
Situation 2: L0 error appears immediately after the compressor starts up
L0
DC bus wire is not connected properly
1
Yes
Ensure DC bus wire is connected properly
No
Compressor has malfunctioned
2
Yes
Replace the compressor
No
Replace the main PCB
Notes:
1. The DC bus wire should run from the N terminal on the inverter module, through the current sensor (in the direction indicated by the arrow on the current
sensor), and end at the N terminal of capacitor. Refer to Figure 4-4.7.
Figure 4-4.7: DC bus wire connection
（
L1L2L3,PIN- POUT
）
L1
，
L2
，
L3 Pin
，
Pout
2. The normal resistances of the inverter compressor are 0.7- 1.5Ω among U V W and infinite between each of U V W and ground. If any of the resistances
differ from these specifications, the compressor has malfunctioned.
Midea CAC Confidential
Mono