Samsung AVMKH020EA0 Service Manual page 182

8-2. Self-diagnosis by the outdoor unit error display
I Specification 1
Error display
Compressor starting delay control at the initial stage of
flickering
power on (under operation of CCH)
System down due to the high temperature of discharge sensor
System down due to the high temperature of Cond
SUMP COMP DOWN
System down due to the lower temperature switch detection
System start down due to reverse phase of the 3 phase
System down due to frozen heat exchanger
Error of momentary power failure (disappears when the unit is off/on)
Compressor down due to protection control of high pressure sensor
Compressor down due to protection control of low pressure sensor
In removing frost
Compressor down due to protection control of condensation ratio
Error of OUT TEMP sensor (OPEN/SHORT)
Error level: Over 4.9V(-50°C), below 0.4V(93°C)
Error of COND TEMP sensor (OPEN/SHORT)
Error level: Over 4.9V(-50°C), below 0.4V(93°C)
Error of PWM Discharge TEMP sensor (OPEN/SHORT)
Detected when the outdoor temperature is over -10°C
Error level: Over 4.95V(-30°C), below 0.5V(151°C)
Error of liquid refrigerant pipe(cond out) TEMP (OPEN/SHORT)
Error level: Over 4.9V(-50°C), below 0.4V(93°C)
Error of OIL TEMP sensor (OPEN/SHORT)
Detected when the outdoor temperature is over -10°C
Error level: Over 4.95V(-30°C), below 0.5V(151°C)
Error of SUCTION TEMP sensor (OPEN/SHORT)
Error level: Over 4.9V(-50°C), below 0.4V(93°C)
Error of high pressure sensor (OPEN/SHORT)
Detected when the compressor is on
SHORT error when below 0.4V, OPEN error when over 4.2V
Error of low pressure sensor (OPEN/SHORT)
Detected when the compressor is on
SHORT error when below 0.4V, OPEN error when over 4.7V
Error of fixed compressor discharge sensor (OPEN/SHORT)
Detected when the outdoor temperature is over -10°C
Error level: Over 4.95V(-30°C), below 0.5V(151°C)
✳ Priority of duplicated error display : E1 → E2 → E4 → E5 → P0 → P1 → P2 → P3 → P5 → P4 → P7 → P8 → P9 → P6 → PA → G2 →
In case that the same error displays from multi-indoor units, the one having the faster address has the priority.
Contents
t1 → t2 → t3 → t4 → t5 → t6 → t7 → t8 → t9 → tu → to → G3 → G4 → G5 → G6 → G7 → G8 →
G9 → E3 → Cx → Dx → Bx → Ax → Fx → qx → rx → sx → vx → Ch
- 181 -
Troubleshooting
Remark
No error
Error about protection
control of outdoor unit
Outdoor unit errors