Troubleshooting
Electrical Control System
247
2.4.3.9. P1 malfunction
(For 36K~60K models)
P1 display
High pressure protection
Judge 1: Whether the wiring
between the high pressure
switch and main control
board is connected well or
correctly
Method: Short connect the
high pressure protector
socket, check whether the
system can run normally
Yes
No
Connect it well
Replace outdoor main board
No
Replace high pressure protector
Yes
Judge 2: Whether
the high pressure
protector is broken
Check whether
the refrigerant
system is ok
Judge 3: Check whether the
outdoor ambient
temperature is higher than
50
℃
No
Stop the unit
Yes
Judge 4: Check whether the
outdoor unit is bad
ventilation
No
Make the outdoor unit ventilate well
Yes
Judge 5: Check whether the
heat exchanger is dirty
Clean the heat exchanger
Yes
Judge 6: Check whether the
refrigerant pipe is blocked
Let the refrigerant out, then use the
high pressure nitrogen or refrigerant to
blow pipe, vacuumize and charge the
refrigerant again
Yes
Summary of Contents for AWAU-YLD012-H11
Page 14: ...Dimensions Console Type 135 2 Dimensions AWSI XAD012 N11 AWSI XAD018 N11 ...
Page 15: ...Service Space 136 Console Type 3 Service Space ...
Page 16: ...Wiring Diagrams Console Type 137 4 Wiring Diagrams AWSI XAD012 N11 AWSI XAD018 N11 ...
Page 21: ...Field Wiring 142 Console Type 10 Field Wiring AWSI XAD012 N11 AWSI XAD018 N11 ...
Page 31: ...Wiring Diagrams 152 Outdoor Units 4 Wiring Diagrams AWAU YLD012 H11 ...
Page 33: ...Wiring Diagrams 154 Outdoor Units AWAU YLD036 H13 AWAU YLD048 H13 ...
Page 34: ...Wiring Diagrams Outdoor Units 155 AWAU YLD060 H13 ...
