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[7-1 Error Code and Preliminary Error Code Lists ]
7-1
Error Code and Preliminary Error Code Lists
7 Troubleshooting Using Error Codes
Error
Prelimi-
(prelim-
Error
nary
inary)
Code
error
detail
code
code
1
4300
0403
5
4305
(Note)
1102
1202
-
1301
-
-
1302
1402
-
1500
1600
-
-
1605
-
2500
-
-
2502
-
-
2503
-
-
2600
-
-
2601
-
-
2602
-
-
3121
-
-
4102
4152
-
4106
-
-
4109
-
-
4115
-
-
4116
-
-
4121
4171
−
[0]
[108]
4220
4320
[109]
4225
4325
[110]
(Note)
(Note)
[111]
[131]
4230
4330
-
4240
4340
-
[0]
[101]
[103]
4250
4350
4255
4355
[104]
(Note)
(Note)
[105]
[106]
[107]
4260
-
-
HWE13080
Error code definition
Serial communication error/Panel communication
error
Discharge temperature fault
Low pressure fault
High pressure fault
Refrigerant overcharge
Preliminary suction pressure fault
Drain sensor submergence
Drain pump fault
Drain sensor (Thd) fault
Water leakage
Water supply cutoff
Function setting error
Out-of-range outside air temperature
Open phase
Transmission power supply fault
Fan operation status detection error
Power supply signal sync error
RPM error/Motor error
Function setting error
Backup operation
Abnormal bus voltage drop
Abnormal bus voltage rise
VDC error
Logic error
Low bus voltage at startup
Heatsink overheat protection
Overload protection
Backup operation
IPM error
DCCT overcurrent (H/W detection)
Short-circuited IPM/Ground fault
Overcurrent error due to short-circuited motor
Instantaneous overcurrent (S/W detection)
Overcurrent (effective value)(S/W detection)
Heatsink overheat protection at startup
- 175 -
Searched unit
Notes
O
O
(page 179)
O
(page 180)
O
(page 181)
O
(page 182)
O
(page 183)
O
O
(page 184)
O
O
(page 186)
O
O
(page 188)
O
(page 189)
O
(page 189)
O
(page 190)
O
(page 191)
O
(page 192)
O
(page 194)
O
(page 194)
O
(page 195)
O
O
(page 196)
O
(page 196)
O
O
(page 197)
O
(page 199)
O
(page 200)
O
(page 200)
O
(page 201)
O
(page 202)
O
(page 203)
O
O
(page 204)
O
(page 206)
O
(page 207)
O
(page 208)
O
(page 206)
O
(page 206)
O
(page 209)
GB
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Troubleshooting
Need help?
Do you have a question about the PURY-HP72 and is the answer not in the manual?
Questions and answers
what is the set up mode for recovery, and charging of sys?
Why can control my indoor unit with centralize control
You may not be able to control your Mitsubishi Electric PURY-HP72 indoor unit with centralized control for the following reasons:
1. The power jumper connector on the outdoor unit may not be correctly set. It should be connected to CN40 on only one outdoor unit.
2. The central control switch (SW5-1) on the control board of all outdoor units must be set to "ON."
3. Address settings may not be correctly configured. The main indoor unit should be assigned the smallest address (e.g., IC00), and correct port number settings are required.
4. If using a remote controller alone, an interlock setting from the remote controller is needed.
5. Both ME and MA remote controllers cannot be connected to the same indoor unit group.
6. System controller power issues may occur if the outdoor unit fan rotates due to external forces, causing the system controller to detect an error.
7. Improper wiring or incorrect voltage at TB7 may also prevent operation.
Check each of these conditions to ensure proper centralized control.
This answer is automatically generated
Why can’t control indoor unit with centralize control and stay the MA control set up can’t. Control the mode
The Mitsubishi Electric PURY-HP72 indoor unit cannot be controlled with centralized control and the mode control setup does not function due to the following reasons:
1. Central control is not possible if the indoor/outdoor transmission line is used, even if TB7 terminals are daisy-chained.
2. Shielded cables must be used, and the connection must only be made after confirming the voltage is below 20 VDC.
3. Improper connection of the transmission line for centralized control, such as not correctly daisy-chaining terminals M1 and M2 or not short-circuiting the earth and S terminals on TB7.
4. If a power supply unit is not connected to the centralized control line, the power jumper connector must be moved from CN41 to CN40 on one outdoor unit—if this is not done, mode control will not function.
5. Overlapped indoor unit addresses or noise interference on the remote controller lines can also prevent proper control.
6. Failure to set one MA remote controller to MAIN or exceeding its capacity can result in control failure.
All these factors must be correctly configured for centralized and mode control to function properly.
This answer is automatically generated