E3" Abnormal High Pressure (Detected By The Hps) - Daikin SkyAir Service Manual

SiBE28-804

5.19 "E3" Abnormal High Pressure (Detected by the HPS)

E3
Remote
Controller
Display
Method of The protection device circuit checks continuity in the high pressure switch.
Malfunction
Detection
Malfunction When the high pressure switch is actuated
Actuating pressure:
Decision
RZQ(S)71~140
Conditions
Supposed
Causes
HPS settings The table below contains the preset HPS values.
RZQ(S)71
RZQ(S)100
RZQ(S)125
RZQ(S)140
Troubleshooting
Faulty high pressure switch
Disconnection in high pressure switch harness
Faulty connection of high pressure switch connector
Clogged indoor unit suction filter (in heating operation)
Dirty outdoor unit heat exchanger
Faulty outdoor unit fan
Refrigerant overcharge
Stop valve is left in closed.
Open
4.0 Mpa +0/-0.15
Troubleshooting by Remote Controller Display / LED Display
High pressure switch
Close
3.0 +/-0.15
Fuse
6.3A/250V
179