
Troubleshooting
82
When a malfunction of the unit is detected, immediately switch off the main power supply before proceeding
with the following troubleshooting procedures.
The following are common fault conditions and simple troubleshooting tips. If any other fault conditions that
are not listed occur, contact your nearest local dealer. DO NOT attempt to troubleshoot the unit by yourself.
Error Code
CONTROL MEASURE
PUMP SYSTEM1 SYSTEM
2
ERROR DISPLAY
ERROR DESCRIPTION
RESET
(default)
COMP FAN COMP FAN
Phase Missing
Phase missing
Manual
OFF OFF OFF OFF OFF
Phase Seq Error
Wrong phase sequencing
Manual
OFF OFF OFF OFF OFF
Memory Error
EEPROM read/write error
Auto
OFF
OFF
OFF
OFF
OFF
Entering Water sensor
Open/Short
BPHE water in sensor error
Auto
OFF
OFF
OFF
OFF
OFF
Leaving water sensor
Open/Short
BPHE water out sensor error
Auto
OFF
OFF
OFF
OFF
OFF
Outdoor Air sensor
Open/Short
Ambient temp sensor error
Auto
OFF
OFF
OFF
OFF
OFF
Water Flow Error
Cv contact opened
Manual
OFF
OFF
OFF
OFF
OFF
Cool Mode Antifreeze
Leaving water temp too low
Auto
OFF
OFF
OFF
OFF
OFF
OV/UN Voltage
Comp High Voltage (>490V) <460V, Auto
OFF
OFF
OFF
OFF
OFF
OV/UN Voltage
Comp Low Voltage (<310V) >340V, Auto
OFF
OFF
OFF
OFF
OFF
Pump Overload
Pump OLP closed
Auto
OFF
OFF
OFF
OFF
OFF
IPM Error
IPM over-current or overheat
Auto
-
OFF
OFF
-
-
Comp 1 Overload
Comp 1 overload
Auto
-
OFF
OFF
-
-
Comp 1 Discharge
Overheat
Comp 1 discharge overheat
Auto
-
OFF
OFF
-
-
High Pressure 1
System 1 high pressure
Auto
-
OFF
OFF
-
-
Low Pressure 1
System 1 low pressure
Auto
-
OFF
OFF
-
-
Comp 1 Defrost
sensor Open/Short
Coil out system 1 sensor
error
Auto -
OFF
OFF
-
-
Comp 1 Suct sensor
Open/Short
Suction comp system 1
sensor error
Auto -
OFF
OFF
-
-
Comp 1 Discharge
sensor Open/Short
Discharge comp system 1
sensor error
Auto -
OFF
OFF
-
-
Coil 1 Inlet Temp
Open/Short
Coil In system 1 sensor error
Auto
-
OFF
OFF
-
-
V-Hx Inlet Temp
sensor Open/Short
BPHE refrigerant in sensor
error
Auto -
OFF
OFF
-
-
V-Hx Outlet Temp
Open/Short
BPHE refrigerant out sensor
error
Auto -
OFF
OFF
-
-
Comp 2 Overload
Comp 2 overload
Auto
-
-
-
OFF
OFF
High Pressure 2
System 2 high pressure
Auto
-
-
-
OFF
OFF
Low Pressure 2
System 2 low pressure
Auto
-
-
-
OFF
OFF
Comp 2 Defrost
sensor Open/Short
Coil out system 2 sensor
error
Auto - -
-
OFF
OFF
Comp 2 Discharge
sensor
Open/Short/Overheat
Discharge comp system 2
sensor error
Auto - -
-
OFF
OFF
Содержание M5ACV 030 CR
Страница 43: ...Installation M5ACV 030 055 075CR 41 ...
Страница 44: ...M5ACV 030CR M5ACV 055CR 075CR 42 ...
Страница 78: ...Wiring Diagrams PA R T NO 50 13 9 026086 Model M5ACV 030CR 76 ...
Страница 79: ...77 Model M5ACV 055CR ...
Страница 80: ...Model M5ACV 075CR PA R T NO 50 13 4 083602 78 ...