37
10.4.3 Zero crossing detection error diagnosis and solution(E2)
Error Code
E2
Malfunction decision
conditions
When PCB does not receive zero crossing signal feedback for 4
minutes or the zero crossing signal time interval is abnormal.
Supposed causes
●
Connection mistake
●
PCB faulty
Trouble shooting:
Check if the connections and
power supply is normal?
Correct the connections. Turn on the
unit when the power supply is good.
No
Yes
Indoor main PCB is
defective. Replace indoor
main PCB.
Summary of Contents for PIN413C2V31
Page 7: ...5 2 2 Part names of Indoor Outdoor units ...
Page 14: ...12 6 Wiring Diagram 6 1 Indoor Unit PIN413C2V31 I PIN519C2V31 I ...
Page 15: ...13 PIN624C2V31 IW ...
Page 16: ...14 6 2 Outdoor Unit PIN413C2V31 O PIN519C2V31 O ...
Page 17: ...15 PIN624C2V31 O For PIN413C2V31 O ...
Page 18: ...16 For PIN519C2V31 O For PIN624C2V31 O ...
Page 46: ...44 P U P V ...
Page 47: ...45 P W P N ...