Diagnosis And Solution - Carrier 40MAHB Series Service Manual
High wall ductless system
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Also See for 40MAHB Series:
- Installation instructions manual (22 pages) ,
- Owner's manual (14 pages)
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40MAHB: Service Manual
DIAGNOSIS AND SOLUTION
Outdoor Unit Error Display
After the power is on, LED1 (blue color) flashes slowly (once per second) when the unit is in standby. The LED flashes quickly (twice per second) if
the unit has an issue.
NO.
1
IPM malfunction or IGBT over - strong current protection
2
Over voltage or too low voltage protection
3
EEPROM parameter error
4
Inverter compressor drive error
5
Inverter compressor drive error
6
Inverter compressor drive error
NO.
1
IPM malfunction or IGBT over - strong current protection
2
Over voltage or too low voltage protection
3
EEPROM parameter error
4
Inverter compressor drive error
5
Inverter compressor drive error
6
Inverter compressor drive error
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 6 — Diagnostic Table Sizes 9K-18K
PROBLEMS
O (light)
Table 7 — Diagnostic Table Sizes 24K- 36K
PROBLEMS
LED3 (GREEN)
LED2 (RED)
O
O
X
X (off)
(2.5 Hz flash)
LED2 (GREEN)
LED3 (RED)
O
O
X
15
IU DISPLAY
X
P0
O
P1
E5
P4
O
P4
P4
IU DISPLAY
X
P0
O
P1
E5
P4
O
P4
P4
SOLUTION
Page 28
Page 31
Page 16
Page 35
Page 35
Page 35
SOLUTION
Page 28
Page 31
Page 16
Page 35
Page 35
Page 35
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