Panasonic WH-SDC12C9E8 User Manual (English)

Other manuals for Panasonic WH-SDC12C9E8

Operating Instructions92 pages

Service Manual141 pages

Questions and Answers:

J
Jason VangAug 22, 2025
Why is my Panasonic WH-SDC12C9E8 Heat Pump showing Indoor/Outdoor Abnormal Communication (H90)?
- N
  nnelsonAug 22, 2025
  An Indoor/Outdoor Abnormal Communication (H90) error on your Panasonic Heat Pump may be due to several reasons: * A faulty outdoor or indoor unit PCB (main). * Indoor-outdoor signal transmission error due to wrong wiring. * A break in the connection wires between the indoor and outdoor units. * A disturbed power supply waveform. The system checks the data received from the outdoor unit during indoor unit signal transmission to ensure it is normal.
P
Paul SimonAug 23, 2025
What causes a Compressor Overheating (F20) error in my Panasonic Heat Pump?
- C
  Cindy YoungAug 23, 2025
  A Compressor Overheating (F20) error in your Panasonic Heat Pump can be triggered by: * A faulty compressor tank temperature sensor. * Closed 2/3 way valve. * Refrigerant shortage (refrigerant leakage). * Clogged expansion valve or strainer. * Faulty outdoor unit PCB (main). * Faulty compressor. This error occurs during cooling and heating when the compressor tank temperature sensor detects a temperature above 112°C.
C
cheyennehansonAug 25, 2025
What does it mean when my Panasonic Heat Pump displays Outdoor High Pressure Abnormality (H64)?
- M
  Melinda ColeAug 26, 2025
  An Outdoor High Pressure Abnormality (H64) on your Panasonic Heat Pump indicates a problem with the outdoor high pressure sensor. This can be due to: * A faulty connector connection. * A faulty sensor. * A faulty outdoor unit PCB (main). The system detects this abnormality during cooling and heating when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc.
K
Krista WheelerAug 26, 2025
Why am I getting an Outdoor High Pressure Switch Activate (F12) error on my Panasonic WH-SDC12C9E8 Heat Pump?
- R
  Robert AllenAug 27, 2025
  An Outdoor High Pressure Switch Activate (F12) error on your Panasonic Heat Pump indicates that the outdoor high pressure switch has been activated. This can be due to: * Dust accumulation on the outdoor unit heat exchanger. * Air short circuit at the outdoor unit. * A faulty water pump. * Insufficient water flow rate in the system. * Water leak in the system. * A closed 2/3 way valve. * A clogged expansion valve or strainer. * Excessive refrigerant. * A faulty outdoor high pressure sensor and switch. * A faulty outdoor unit PCB. This occurs during cooling and heating operation when the outdoor high pressure switch detects pressure at 4.5MPa and above.
Z
Zachary PorterAug 27, 2025
What does Input Over Current Detection (F16) mean on my Panasonic WH-SDC12C9E8 Heat Pump?
- B
  Brian RussellAug 27, 2025
  Input Over Current Detection (F16) on your Panasonic Heat Pump means that the outdoor current is too high. This can be caused by: * Excessive refrigerant. * Faulty outdoor unit PCB (main). During cooling and heating operation, this error is triggered when the current transformer (CT) in the outdoor unit PCB detects outdoor current above 10.6A.
T
Thomas TurnerAug 29, 2025
Why is my Panasonic Heat Pump showing an IPM Overheating (F22) error?
- O
  othompsonAug 29, 2025
  An IPM Overheating (F22) error on your Panasonic Heat Pump suggests that the IPM (Intelligent Power Module) is overheating. This can be due to: * A faulty outdoor unit fan motor. * A faulty outdoor unit PCB (main). This error is detected during cooling and heating operation when the outdoor IPM temperature sensor detects a temperature of 95°C.
J
James DiazAug 30, 2025
What causes a Connection Capability Rank Abnormality (H12) in a Panasonic WH-SDC12C9E8?
- T
  theresa73Aug 30, 2025
  A Connection Capability Rank Abnormality (H12) in your Panasonic Heat Pump can be caused by: * Wrong model interconnected. * Wrong indoor unit or outdoor unit PCB (main) used. * Faulty indoor unit or outdoor unit PCB (main). This is determined during the startup operation of cooling and heating, where the capability rank of the indoor unit, checked by the outdoor unit, is used.
S
steven99Sep 1, 2025
What does Outdoor High Pressure Protection (H98) mean for a Panasonic WH-SDC12C9E8 Heat Pump?
- R
  Robert BennettSep 1, 2025
  Outdoor High Pressure Protection (H98) in your Panasonic Heat Pump indicates that the pressure is too high. This can be caused by: * A faulty water pump. * Insufficient water flow rate in the system. * Water leak in the system. * 2/3 way closed. * Clogged expansion valve or strainer. * Excessive refrigerant. * Faulty outdoor high pressure sensor. * Faulty outdoor unit PCB (main). During heating operation, this protection is triggered when the outdoor high pressure sensor detects pressure at 4.0MPa and above.
A
Adrian SpencerSep 2, 2025
What causes an Indoor Freeze-up Protection (H99) error on a Panasonic WH-SDC12C9E8 Heat Pump?
- J
  Joshua CardenasSep 2, 2025
  An Indoor Freeze-up Protection (H99) error on your Panasonic Heat Pump can occur due to: * A faulty water pump. * Insufficient water flow rate in the system. * Water leak in the system. * A 2 way valve partially closed. * A clogged expansion valve or strainer. * Refrigerant shortage (refrigerant leakage). * A faulty indoor refrigerant liquid temperature sensor. * A faulty indoor unit PCB (main). This protection activates during anti-freezing control in cooling operation when the indoor refrigerant liquid temperature is less than 0°C.
M
Mark WalkerSep 3, 2025
Why is my Panasonic Heat Pump showing Unspecified Voltage between Indoor and Outdoor (H95)?
- A
  Antonio OsborneSep 3, 2025
  An Unspecified Voltage between Indoor and Outdoor (H95) error on your Panasonic Heat Pump may be due to: * Insufficient power supply. * Faulty outdoor unit PCB (noise filter/main). The supply power is detected for its requirement by the indoor/outdoor transmission.

Panasonic WH-SDC12C9E8 Specifications

General

Energy Efficiency Class (Heating)	A++
Energy Efficiency Class (Cooling)	A++
Refrigerant	R32
Type	Air to Water Heat Pump
Heating Capacity	12.0 kW
Power Supply	230 V
Dimensions (Outdoor Unit) (HxWxD)	1410 x 1283 x 320 mm
Operating Temperature Range (Heating)	-20°C to 35°C
Operating Temperature Range (Cooling)	+10 to +46 °C