45
9.2.4 EEPROM parameter error diagnosis and solution
9.2.5 Zero crossing detection error
When such failure occurs, the main control board must have fault.
Replace indoor PCB
S
hut off the power supply and turn on it 5s later
The problem comes out again
Is the EEPROM chip plugged in indoor PCB well?
No
Correct the connection
Replace the main PCB of indoor unit
Summary of Contents for R ON-OFF series
Page 1: ...SPLIT WALL MOUNTED TYPE R ON OFF SERIES...
Page 8: ...6 2 Function...
Page 11: ...9 3 Dimension 3 1 Indoor Units Figure 1 Figure 2...
Page 14: ...12 4 Refrigerant Cycle Diagram For heat pump models...
Page 15: ...13 5 Wiring Diagram 5 1 Indoor Units KSR1 07HRN1 QC2 A KSR1 09HRN1 QC2 A KSR1 18HRN1 QB8...
Page 16: ...14 KSR1 21HRN1 QB8W KSR1 21CR QB6W KSR1 21HR QB6W KSR1 24HRN1 QB8W...
Page 17: ...15 5 2 Outdoor Units KOK1 07HN1 QC2 KOA1 09HN1 QC2...
Page 18: ...16 KOE 18HN1 QB8...
Page 19: ...17 KOF 21HN1 QB8W K0F2 21C QB6W KOP 21H QB6W...
Page 20: ...18 KOF2 24HN1 QB8W...