Carrier SmartVu - Page 49

51
the last 24 hours,
otherwise
manual.
28
P-06
Circuit B Low Suction
Temperature
As above
As above
As above
29
P-07
Circuit THR Low Suction
Temperature
As above
As above
As above
30
P-16
Compressor A1 Not Started or
Pressure Increase not
established
Manual
Connection problem
Compressor is shut
down
31
P-17
Compressor A2 Not Started or
Pressure Increase not
established
As above
As above
As above
32
P-20
Compressor B1 Not Started or
Pressure Increase not
established
As above
As above
As above
33
P-21
Compressor B2 Not Started or
Pressure Increase not
established
As above
As above
As above
34
P-22
Compressor THR1 Not Started or
Pressure Increase not
established
As above
As above
As above
35
P-23
Compressor THR2 Not Started or
Pressure Increase not
established (RESERVED)
As above
As above
As above
36
P-31
Unit is in CCN emergency stop
Manual
Network command
Unit is shut down
37
P-37
Circuit A - Repeated high
discharge gas overrides
Automatic
Transducer defective
or fan circuit
fault
None
38
P-38
Circuit B – Repeated high
discharge gas overrides
Automatic
As above
As above
39
P-39
Circuit THR – Repeated high
discharge gas overrides
As above
As above
As above
40
P-40
Circuit A – Repeated low suction
temp overrides
Manual
Pressure sensor
defective or
refrigerant charge too
low
Circuit is shut down
41
P-41
Circuit B – Repeated low suction
temp overrides
Manual
As above
As above
42
P-42
Circuit THR – Repeated low suction
temp overrides
As above
As above
As above
43
P-99
Refrigerant Leakage Detection
Manual
The refrigerant leak
sensor contact is
open
Unit is shut down
44
P-202
Energy Recovery Wheel
Automatic
Wheel is not rotating
ERM option is off
45
P-203
Return Fan Status Failure
Manual
Air flow fault
Unit is shut down
46
P-204
Supply Fan Status Failure
Manual
Air flow fault
Unit is shut down
47
P-205
Pre-heater Failure
Manual
The pre-heater
overheat feedback is
open
Turn off the pre-heaters
immediately, disable
pre-heater function.
Other parts of machine
like compressor and fan
remain running
48
P-209
Fire
As above
The anti-fire contact
is open
Unit is shut down
49
P-210
Heat Stage Failure
As above
the heating stage
fault contact
is open
Turn off the pre-heaters
immediately, disable
pre-heater function.
Other parts of machine
like compressor and fan
remain running
50
P-211
Thermostat Failure
Manual
The unit is controlled
by an external
thermostat and this
simultaneously sends
a heating or cooling
command
The indoor fan shuts
down.
All functions are
deactivated.
51
Sr-nn
Service maintenance alert, call
your maintenance company
Manual
The preventive
maintenance
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