E4" Outdoor Unit: Actuation Of Low Pressure Sensor - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

Troubleshooting by Indication on the Remote Controller
3.16 "E4 " Outdoor Unit: Actuation of Low Pressure Sensor
E4
Remote Control
Display
Applicable Models ER*Q 011~016*
Method of
Abnormality is detected by the pressure value with the low pressure sensor.
Malfunction
Detection
Malfunction Error is generated when the low pressure is dropped under specific pressure.
Operating pressure: 0.07MPa
Decision Conditions
 Abnormal drop of low pressure (Lower than 0.07MPa)
Supposed Causes
 Defect of low pressure sensor
 Defect of outdoor unit PC board (A1P)
 Stop valve is not opened.
162
ESIE09-08A
Troubleshooting