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11 Troubleshooting
11.2
Running diagnostics on errors on the outdoor unit
Fig.74
2
Tab.30
Outdoor unit parameters
Parameter No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
72
SPC Split
4
MW-4000189-2
Description of the parameter
Normal display
Mode
Fan speed
Evaporation temperature (T3)
Air temperature (T4)
Water temperature (T5L)
Intake temperature (Th)
Discharge temperature (Tp)
Electrical current required:
to the electrical back-up,
to the compressor
Degree to which the electronic pressure release
valve is open
Setpoint temperature (Ts)
Trip temperature of the electrical back-up (Td)
Hysteresis (Tr)
Last error code
Software version
End of parameters
To run diagnostics on certain errors shown by the control panel, it may be
necessary to refer to the parameters directly on the outdoor unit.
Important
Only qualified persons may carry out diagnostics of the outdoor
unit as the process is carried out directly on the outdoor unit.
1. Switch the thermodynamic water heater off.
2. Remove the top panel on the outdoor unit.
3. Switch the thermodynamic water heater back on.
Danger
Electrified bare parts are then accessible.
4. Scroll through the parameters by pressing the QUERY button.
See
Outdoor unit list of parameters.
5. Once diagnostics are complete, refit the top panel on the outdoor unit.
11.2.1
Outdoor unit list of parameters
Values displayed
Open = value displayed x 8
"__"
Water temperature T5L
dF : Defrosting phase
dC : Refrigerant fluid recovery mode
0: Holiday mode
2: In residence
8: Holiday
F0: Shut-down
F1: Low speed
F2: High speed
7740321 - v04 - 03122019
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