Daikin RZQ125B7W1B [211/326] Actuation of low pressure switch rzq100 140 e4

Daikin RZQ100B7W1B [211/326] Actuation of low pressure switch rzq100 140 e4
ESIE05-03 Error Codes: Outdoor Units
Part 3 Troubleshooting 3–63
33
4
5
1
3.5 Actuation of Low Pressure Switch: RZQ100~140 (E4)
Error code E4
Method of
Malfunction
Detection
The protection device circuit checks continuity in the low pressure switch.
Error generation The error is generated when the low-pressure switch is activated during compressor operation.
Causes The possible causes are:
P Malfunctioning refrigerant piping circuit
P Malfunctioning low-pressure switch
P Disconnected or broken low-pressure switch harness
P Malfunctioning low-pressure switch connector connection
P Malfunctioning outdoor unit PCB
P Stop valve is not opened.
LPS settings The table below contains the preset LPS values.
See page page 2-48 for details
Applicable units Abnormal Reset
RZQ100~140 < 1.2 bar > 2 bar
ESIE05-03.book Page 63 Wednesday, April 6, 2005 4:09 PM

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