Daikin VRV IV+, Руководство по обслуживанию

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2 | Troubleshooting
Service manual
187
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Possible cause: Faulty ambient air thermistor.
2 Perform refrigerant leak check when the outdoor temperature is above 20°C.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.201 E-4 – Refrigerant leak check is interrupted - too low pressure is detected
Trigger Effect Reset
Too low pressure is
detected during
refrigerant leak check
mode. Refrigerant leak check
function CANNOT be
performed. Restart leak detection
operation.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the refrigerant high pressure sensor. See "3.17 Refrigerant
high pressure sensor" [
4
330].
Possible cause: Faulty refrigerant high pressure sensor.
2 Perform a check of the refrigerant low pressure sensor. See "3.18 Refrigerant
low pressure sensor" [
4
333]
Possible cause: Faulty refrigerant low pressure sensor.
3 Restart leak detection operation.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.202 E-5 – Refrigerant leak check cannot be performed - a unit which is not compatible with
leak detection function is installed
Trigger Effect Reset
Leak detection is NOT
supported for some of the
installed indoor units (e.g.
Hydrobox, …). Refrigerant leak check
function CANNOT be
performed. No reset required.
To solve the error code
1 No corrective action needed, unless there is an indoor unit in the system
which is refrigerant leak function incompatible.