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5. Trouble Shooting
6.14 Check code Trouble shooting CH24
Is the wire connection
normal ?
Is the SVC Valve
opened ?
Check the leakage of
refrigerant.
Check Pressure of
suction pipe
Check Pressure of
discharge pipe
Is the soldering
state of connector is
normal?
Yes
Yes
No
Correct connection
No
Re-soldering component
Yes
No
Open SVC Valve
Is it normal ?
Change main PCB
Yes
No
Re-vaccuming system
& Re-charging
Check Flow Chart
CN_PRESS
Switch Low pressure switch High pressure switch
Spec 0.03 Mpa 4.3 Mpa
Model AUUW126C AUUW246D
AUUW186C AUUW306D
AUUW366D
AUUW426D
AUUW486D
AUUW606D
AUUW368D
AUUW428D
AUUW488D
AUUW608D
❊ Pressure switch table
24
Press S/W Open
• Low / High press
S/W open.
• Check the connection of “CN_PRESS”
• Check the SVC V/V open.
• Check the leakage of refrigerant.
Display
code
Title Cause of error Check point & Normal condition