Brand: Panasonic
Category: Air Conditioner
Document Type: Manual
Language: EN
Manual for CS-TZ20WKew
Uploaded: Nov. 21, 2025, 9:21 p.m.
Warranty Information
The manual does not contain specific warranty period details.
This manual provides detailed information on the operation and servicing of Panasonic Air Conditioners, specifically the CS-TZ20WKew model. It covers safety precautions, specifications, features, controls, dimensions, refrigeration cycle diagrams, block diagrams, wiring and electronic circuit diagrams, installation instructions, refrigerant handling (R32), operation control, protection control, servicing mode, and troubleshooting guide. Detailed procedures for disassembly and assembly are also included, along with technical data and exploded views with replacement parts lists. The manual emphasizes safety during installation and servicing, particularly when working with R32 refrigerant.
Troubleshooting and error codes
| Error Code | Description |
|---|---|
| F90 | P.C.B. Error (Outdoor) |
| F91 | P.C.B. Error (Outdoor) |
| F93 | P.C.B. Error (Outdoor) |
| F95 | P.C.B. Error (Outdoor) |
| F96 | P.C.B. Error (Outdoor) |
| F97 | P.C.B. Error (Outdoor) |
| F99 | P.C.B. Error (Outdoor) |
| E00 | Outdoor Unit PCB Error |
| E01 | Outdoor Unit Fan Motor Error |
| E02 | Indoor Unit Fan Motor Error |
| E03 | Communication Error (Indoor/Outdoor) |
| E04 | Voltage Error |
| E05 | Compressor Overcurrent Error |
| E06 | Outdoor Unit Temperature Sensor Error |
| E07 | Indoor Unit Temperature Sensor Error |
| E08 | Refrigerant Leakage Detected |
| E09 | Outdoor Unit PCB Error |
| E10 | Compressor Start Error |
| E14 | Compressor Overload Error |
| E15 | Compressor High Pressure Error |
| E16 | Compressor Low Pressure Error |
| E18 | Outdoor Unit Temperature Sensor Error (High Temp) |
| E19 | Outdoor Unit Temperature Sensor Error (Low Temp) |
| E21 | Indoor Unit Temperature Sensor Error (High Temp) |
| E22 | Indoor Unit Temperature Sensor Error (Low Temp) |
| E23 | Indoor Unit Air Temperature Sensor Error |
| E24 | Indoor Unit Pipe Temperature Sensor Error |
| E25 | Outdoor Unit Air Temperature Sensor Error |
| E26 | Outdoor Unit Pipe Temperature Sensor Error |
| E30 | Power Factor Correction Error |
| E33 | Compressor 2 Overcurrent Error |
| E34 | Compressor 2 Start Error |
| E35 | Compressor 2 High Pressure Error |
| E36 | Compressor 2 Low Pressure Error |
| E37 | Compressor 2 Overload Error |
| E38 | Outdoor Unit Discharge Pipe Temperature Sensor Error |
| E39 | Outdoor Unit Suction Pipe Temperature Sensor Error |
| E40 | Indoor Unit Discharge Pipe Temperature Sensor Error |
| E41 | Indoor Unit Suction Pipe Temperature Sensor Error |
| E43 | Outdoor Unit Ambient Temperature Sensor Error |
| E44 | Indoor Unit Ambient Temperature Sensor Error |
| E47 | Outdoor Unit Fan Motor Lock Error |
| E48 | Indoor Unit Fan Motor Lock Error |
| E51 | External Device Communication Error |
| E52 | Water Level Error (for specific models) |
| E53 | Main PCB Error |
| E54 | Sub PCB Error |
| E56 | Current Sensor Error |
| E57 | Communication Error (Indoor/Outdoor) |
| E58 | Refrigerant Overcharge Error |
| E59 | Refrigerant Undercharge Error |
| E60 | Refrigerant Leakage Detected (Advanced) |
| E61 | Compressor Phase Sequence Error |
| E62 | Outdoor Unit Discharge Pipe Overheat Error |
| E64 | Outdoor Unit Suction Pipe Overheat Error |
| E71 | Power Supply Phase Error |
| E72 | Power Supply Voltage Error |
| E73 | Power Supply Frequency Error |
| E74 | Power Supply Sequence Error |
| E75 | Power Factor Correction Error (Advanced) |
| E76 | Compressor Temperature Sensor Error |
| E77 | Compressor DC Current Sensor Error |
| E78 | Compressor AC Current Sensor Error |
| E79 | Compressor Voltage Sensor Error |
| E81 | Outdoor Unit Fan Motor Speed Error |
| E82 | Indoor Unit Fan Motor Speed Error |
| E83 | Communication Error (Outdoor PCB to Fan Motor) |
| E84 | Communication Error (Indoor PCB to Fan Motor) |
| E90 | Remote Control Error |
| E91 | Indoor Unit Communication Error |
| E92 | Outdoor Unit Communication Error |
| E93 | Outdoor Unit Temperature Sensor Error (High Temp) |
| E94 | Outdoor Unit Temperature Sensor Error (Low Temp) |
| E95 | Indoor Unit Temperature Sensor Error (High Temp) |
| E96 | Indoor Unit Temperature Sensor Error (Low Temp) |
| E97 | Indoor Unit Air Temperature Sensor Error |
| E98 | Indoor Unit Pipe Temperature Sensor Error |
| E99 | Outdoor Unit Air Temperature Sensor Error |