3-30
SM-16007
TROUBLESHOOTING
(A) Protection Control Code
The control information during operation are displayed.
The protection control code is different from the code displayed during unit operation stoppage.
P06
P05
P03
P01
P02
Code
Protection Control
Pressure Ratio Control
Discharge Gas Temp. on Top of Comp. Increase Protection
High Pressure Increase Protection
Low Pressure Decrease Protection
High Pressure Decrease Protection
P09
P04
Inverter Fin Temp. Increase Protection
Inverter Current Protection
P0A
Demand Current Control
Protection Control
Code
P15
P16
P17
P18
P13
P14
P12
P11
Pressure Ratio Decrease Retry
Low Pressure Increase Retry
High Pressure Increase Retry
Vacuum/Discharge Gas Temp. Increase Retry
Discharge Gas SUPER HEAT Decrease Retry
Overcurrent Retry of Constant Speed Comp.
Inverter Trip Retry
P26
High Pressure Decrease Retry
P0d
Low Pressure Increase Protection
Retry Related to Inverter
NOTE: If the degeneration control is activated, the indications PC1 to PC5
are indicated instead of P01 to P05.
(B) Alarm Code Table
Code
Category
Content of Abnormality
Leading Cause
01
Indoor Unit
Activation of Protection Device (Float Switch)
Activation of Float Switch (High Water Level in
Condensation Drainage Pan, Problem with Drain Piping,
Float Switch, or Condensation Drainage Pan)
02
Outdoor Unit
Activation of Protection Device
(High Pressure Cut)
Activation of PSH (Pipe Clogging, Excessive
Refrigerant, Inert Gas Mixing)
03
Communication
Operational Irregularities between
Indoor and Outdoor
Incorrect Wiring, Loose Terminals, Disconnect Wire,
Blowout of Fuse, Outdoor Unit Power OFF
04
04.
Problem between Inverter PCB and
Outdoor PCB
Problem between Fan Controller and
Outdoor PCB
Inverter PCB - Outdoor PCB Communication Failure
(Loose Connector, Wire Breaking, Blown of Fuse)
Fan Controller - Outdoor PCB Communication Failure
(Loose Connector, Wire Breaking, Blown of Fuse)
05
Supply Phase Problem of Power Source Phases
Incorrect Power Source, Connection to
Reversed Phase, Open-Phase
06
Voltage
Abnormal Inverter Voltage
Outdoor Voltage Drop, Insufficient Power Capacity
06.
Abnormal Fan Controller Voltage
Outdoor Voltage Drop, Insufficient Power Capacity
07
Cycle
Decrease in Superheated Discharge Gas
Excessive Refrigerant Charge, Failure of Thermistor,
Incorrect Wiring, Incorrect Piping Connection,
Expansion Valve Locking at Opened Position
(Disconnect Connector)
08
Increase in Discharge Gas Temperature
Insufficient Refrigerant Charge, Pipe Clogging,
Failure of Thermistor, Incorrect Wiring,
Incorrect Piping Connection, Expansion Valve
Locking at Closed Position (Disconnect Connector)
0A
Communication Problem between Outdoor and Outdoor
Incorrect Wiring, Breaking Wire, Loose Terminals
0b
Outdoor Unit
Incorrect Outdoor Unit Address Setting
Duplication of Address Setting for Outdoor Units
(Sub Units) in Same Refrigerant Cycle System
0C
Incorrect Outdoor Unit Main Unit Setting
Two (or more) Outdoor Units Set as “Main Unit”
Exist in Same Refrigerant Cycle System
11
Sensor on
Indoor Unit
Inlet Air Thermistor
Incorrect Wiring, Disconnecting Wiring
Breaking Wire, Short Circuit
Incorrect Wiring, Severed or Disconnecting Wiring,
Short Circuit
12
Outlet Air Thermistor
13
Freeze Protection Thermistor
14
Gas Piping Thermistor
Outdoor Air Thermistor (ECONO)
Remote Sensor (DOAS)
Thermistor Built-in Remote Controller (DOAS)
19
Fan Motor
Activation of Protection Device for Indoor Fan
Fan Motor Overheat, Lockup
21
Sensor on
Outdoor Unit
High Pressure Sensor
22
Outdoor Air Thermistor
23
Discharge Gas Thermistor on Top of Compressor
24
Heat Exchanger Liquid Pipe Thermistor
25
Heat Exchanger Gas Pipe Thermistor
29
Low Pressure Sensor
15
16
17
Summary of Contents for YVAHP0721CW Series
Page 2: ......
Page 10: ...viii SM 16007 ...
Page 14: ......
Page 15: ...SM 16007 1 1 INSTALLATION 1 Installation ...
Page 163: ...SM 16007 2 1 OPERATION 2 Operation ...
Page 164: ...2 2 SM 16007 OPERATION Ɣ 5HIHU WR WKH 6HUYLFH 0DQXDO IRU QGRRU 8QLW RU RQWUROOHU ...
Page 165: ...SM 16007 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 284: ......
Page 285: ...SM 16007 4 1 MAINTENANCE 4 Maintenance ...
Page 360: ......
Page 390: ......
Page 391: ...SM 16007 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 400: ...6 10 SM 16007 FIELD WORK INSTRUCTIONS 0ROOLHU KDUW IRU 5 ft 3 l b ...
Page 401: ...SERVICE PARTS LIST SM 16007 7 1 7 Service Parts List ...
Page 416: ... 2016 Johnson Controls Inc SM 16007 Code No LIT 12012400 Issued November 2016 ...