L1" Faulty Outdoor Pc Board - Daikin SkyAir Service Manual

SiBE28-804

5.28 "L1" Faulty Outdoor PC Board

L1
Remote
Controller
Display
Applicable RZQ71~140C7V1B, RZQS71~140C7V1B
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Detect malfunctions by current value during waveform output before compressor startup.
Detect malfunctions by current sensor value during synchronized operation at the time of
startup.
Detect malfunctions using an MP-PAM series capacitor overvoltage sensor.
When over-current is detected at the time of waveform output before operating the
compressor
When the current sensor malfunctions during synchronized operation
When overvoltage occurs in MP-PAM
In case of IGBT malfunction
In case of faulty jumper setting
Faulty outdoor PC board (A1P)
•
IPM failure
•
Current sensor failure
•
MP-PAM failure
•
Failure of IGBT or drive circuit
Troubleshooting by Remote Controller Display / LED Display
197