Chiltrix CX34 - Page 56

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P2
low pressure protection
(1) less refrigerant; (2) throttle failure; (3) low
-
voltage
switch failure
P3
compressor overheat protection
(1) less refrigerant; (2) throttle mechanism failure
P4
over current protection Verify that
P88 = 4
(1) too much refrigerant; (2) throttle mechanism
failure; (3) current sensor failure
P5
indoor unit water flow error
(1) water flow is too small; (2) water switch failure
P6
outdoor water flow error
(1) water flow side is too small; (2) water source side
of the water flow switch failure
P7
miss phase
Power failure
P8
wrong phase
Power failure
P9
communication error
The communication line is broken or the control board
is damaged
P10
water source anti
-freeze
(1) the water source side of the heat transfer or water
temperature is too low; (2) water side of the water
flow is insufficient
P11
water source water flow not enough
(1) water side of the water flow is low
P12
EPPRON initializes the fault
P13
Control board and inverter communication
fault
(1) The inverter and the circuit board communication
line is loose (2) inverter fault
P14
The temperature difference between inlet
and outlet is too large
(1) water flow is too small; (2) water switch failure
P15
Current limit frequency fault
Caused by current limitation at lubricant oil return
operation. Set P33=6
°C
F1
voltage protection
Power voltage is too high or too low, the voltage is
normal after the machine to resume operation
(motherboard detection)
F2
IPM Fault
IPM module is damaged
F3
Compressor Drive Fault
The compressor cannot start normally
F4
Compressor over current protection 1
IPM detects that the compressor current is excessive
(IPM or compressor or wiring is faulty)
F5
Compressor over current protection 2
The motherboard detects that the compressor current
is excessive
F6
IPM Overheat
IPM temperature exceeds the set value
F7
PFC Fault
PFC damage
F8
DC bus over voltage
DC voltage exceeds 410V
F9
DC bus under voltage
DC voltage less than 200V
F10
AC input over or under voltage
Power voltage is too high or too low, the voltage is
normal after the machine to resume operation (IPM
detection) (175V ~ 255V)
F11
AC input overcurrent
IPM detected AC current exceeded
F12
Temperature sensor Fault
temp sensor is open or shorted
F13
DSP and motherboard communication Fault
Communication break or control board failure
F14
EC fan failure 1
EC fan 1 not connected or fan failure
F15
EC fan failure 2
EC fan 2 not connected or fan failure
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