U0-00 - Outdoor Unit: Shortage Of Refrigerant - Daikin altherma 3 M Service Manual
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- Installer's reference manual (280 pages) ,
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2.3.68 U0-00 – Outdoor unit: Shortage of refrigerant
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Refrigerant shortage
detected.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform
a
check
"3.20 Thermistors" [
Possible cause: Faulty refrigerant side thermistor(s).
2 Perform a check of the refrigerant pressure sensor. See
pressure
sensor" [
4
Possible cause: Faulty refrigerant pressure sensor.
3 Check that all stop valves of the refrigerant circuit are open. See
"4.2 Refrigerant
circuit" [
Possible cause: Closed stop valve in the refrigerant circuit.
4 Check if the refrigerant circuit is clogged. See
Possible cause: Clogged refrigerant circuit.
5 Check if the refrigerant circuit is correctly charged. See
4
circuit" [
286].
Possible cause: Refrigerant shortage.
6 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
7 Perform a check of the compressor. See "3.7 Compressor" [
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
8 Perform a check of all expansion valves. See
Possible cause: Faulty expansion valve.
9 Check for leaks in the refrigerant circuit. Look for oil traces on the unit(s).
Check the brazing points on the field piping. Perform a pressure test, see
"4.2 Refrigerant
circuit" [
Possible cause: Leak in the refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Effect
Unit will stop operating.
of
all
refrigerant
4
248].
244].
4
286].
"4.2 Refrigerant
circuit" [
4
286].
2
Troubleshooting
|
Reset
Automatic reset.
Power reset via outdoor
unit.
side
thermistors.
"3.19 Refrigerant
"4.2 Refrigerant
circuit" [
"4.2 Refrigerant
4
286].
4
134].
4
"3.9 Expansion
valve" [
See
4
286].
149].
Service manual
57
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