Daikin RZQ125B7W1B [207/326] Abnormal high pressure detected by the hps e3

Daikin RZQ125B7W1B [207/326] Abnormal high pressure detected by the hps e3
ESIE05-03 Error Codes: Outdoor Units
Part 3 Troubleshooting 3–59
33
4
5
1
3.3 Abnormal High Pressure (Detected by the HPS) (E3)
Remote Controller
Display
E3
Method of
Malfunction
Detection
The protection device circuit checks continuity in the high pressure switch.
Malfunction
Decision
Conditions
When the high pressure switch is actuated
Actuating pressure:
RZQ71~140
Supposed Causes
P Faulty high pressure switch
P Disconnection in high pressure switch harness
P Faulty connection of high pressure switch connector
P Clogged indoor unit suction filter (in heating operation)
P Dirty outdoor unit heat exchanger
P Faulty outdoor unit fan
P Refrigerant overcharge
P Stop valve is left in closed.
HPS settings The table below contains the preset HPS values.
High pressure switch Fuse
Open Close
RZQ71 4.0 Mpa +0/-0.15 3.0 +/-0.15 6.3A/250V
RZQ100
RZQ125
RZQ140
ESIE05-03.book Page 59 Wednesday, April 6, 2005 4:09 PM

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