Landmark L3015UI1 Series, Руководство по обслуживанию

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29
TROUBLESHOOTING
Single zone
Display error code “E1”
（
Single zone
）
The air sensor is open circuit failed. Connection main control
PCB is with white color wires. Check the circuit, if it is normal,
the sensor need to be replaced.
Display error code “E2”
（
Single zone
）
The air sensor is short circuit failed. Connection main control
PCB is with white color wires. Check the circuit, if it is normal,
the sensor need to be replaced.
Display error code “E3”.
（
Single zone
）
The defrost sensor is open circuit failed. Connection main
control PCB is with red color wires. Check the circuit, if it is
normal, the sensor need to be replaced.
Display error code “E4”.
（
Single zone
）
The defrost sensor is short circuit failed. Connection main
control PCB is with red color wires. Check the circuit, if it is
normal, the sensor need to be replaced.
Dual zone
Display error code “E1”
（
Dual zone
）
Upper zone the air sensor is open circuit failed. Connection
main control PCB is with red color wires. Check the circuit, if it
is normal, the sensor need to be replaced.
Display error code “E2”
（
Dual zone
）
Upper zone the air sensor is short circuit failed. Connection
main control PCB is with red color wires. Check the circuit, if it
is normal, the sensor need to be replaced.
Display error code “E3”.
（
Dual zone
）
Lower zone the air sensor is open circuit failed. Connection
main control PCB is with
yellow
color wires. Check the
circuit, if it is normal, the sensor need to be replaced.
Display error code “E4”.
（
Dual zone
）
Lower zone the air sensor is short circuit failed. Connection
main control PCB is with yellow color wires. Check the
circuit, if it is normal, the sensor need to be replaced.