Hitachi YUTAMPO Series Service Manual page 86

6 Troubleshooting
Troubleshooting by protection code (Outdoor unit)
Protection P114
code
• Outdoor unit LED301 blinks 14 times.
• This protection code is displayed 3 times before alarm 114 appears at the LCD controller.
Yes
LD301 blinks 14 times.
Abnormality of DC voltage
Protection P115
code
• Outdoor unit LED301 blinks 15 times.
• This protection code is displayed 3 times before alarm 115 appears at the LCD controller.
78 SMGB0135 rev.0 - 06/2020
Is a leakage breaker installed?
Yes
Failure of Q601
LD301 blinks 15 times.
Circuit abnormality
Overvoltage abnormality
Abnormal
Is the insulation of the
compressor normal?
Normal
Circuit abnormality
Replace the outdoor unit controller.
Replace the compressor and then
check the outdoor electrical parts.
Replace the outdoor electrical
parts.
Replace the outdoor electrical
parts (Due to Q601 failure).
Change the outdoor ele. unit.
Q601 abnormal.