Low Pressure (Psi) 1 4; Compressor Damage Alarm - Daikin RXYQ-TA Series Service Manual

Troubleshooting by Error Code

3.32 Compressor Damage Alarm

E6
Error Code
Applicable
All outdoor unit models
Models
Method of Error
Determine the symptom to be error by detecting the revolutions of the compressor and pressure
Detection values detected by the high and low pressure sensors, and further making a comparison between a
theoretical current value of the compressor calculated from parameters detected and an actual
current value detected by the power transistor.
Error Decision
When a state in which the actual current value of the compressor is abnormally high (by 130% or
Conditions more) compared to the theoretical current value continues for a period of 30 minutes.
∗ In case of a system with multi outdoor units, the system will return an alarm if there is any
Supposed
Causes
Troubleshooting
221
operational unit other than that applicable to E6 or determine to be error if not.
Defective compressor
Defective high pressure sensor
Defective low pressure sensor
Defective outdoor unit main PCB
Defective inverter PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
(1)Mount a pressure gauge on the high and low pressure
service ports.
(2)Reset the power supply, and then restart the operation.
characteristics
of the high pressure
sensor normal?
characteristics
of the low pressure
sensor normal?
Service Checker CHECK 12
Connect the service checker to compare the high
pressure and low pressure checked by the service
checker and the actual measured values of the high and
low pressure sensors. (∗1)
Are the
NO
(∗1)
YES
Are the
NO
(∗1)
YES
A
SiUS341615E
Replace the high pressure sensor
(S1NPH).
Replace the low pressure sensor
(S1NPL).
Service Diagnosis