F01·02·03·10·11 Indoor Unit Temperature Sensor Error - Panasonic 2WAY Multi Technical & Service Manual

F01·02·03·10·11 Indoor Unit Temperature Sensor Error
Error detection method
An indoor unit temperature sensor error constantly detects any broken wires or short circuits, and an error is
determined when error conditions are met once.
Error conditions are given below.
1) With indoor unit connected
Display
Indoor heat exchanger inlet temperature sensor
F01
(E1)
Indoor heat exchanger outlet temperature
F03
sensor (E3)
F10 Indoor unit intake temperature sensor
F11 Indoor unit discharge temperature sensor
2) With water heat exchanger unit connected
Display
Water heat exchanger refrigerant inlet
F01
temperature sensor (E1)
F02 Water heat exchanger anti-freeze sensor (E2)
Water heat exchanger refrigerant outlet
F03
temperature sensor (E3)
F10 Hot and cold water inlet sensor
F11 Hot and cold water outlet sensor
Troubleshooting
1) When the indoor unit is connected
1
Poor connection/contact/crimping or broken wire or pinched
Check 1-1
wire in sensor connector and wiring?
wiring
2
Check
Disconnect the sensor connector and measure the resistance
temperature
2-1 value. Is the resistance between the broken wire detection
sensor
value and the short-circuit detection value?
● See instructions packaged with servicing indoor board for procedure on replacing indoor control board.
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6
Sensor name
Sensor name
IV–58
Broken wire detection Short-circuit detection
resistance
330kΩ or more
330kΩ or more
270kΩ or more
270kΩ or more
Broken wire detection Short-circuit detection
resistance
330kΩ or more
330kΩ or more
330kΩ or more
270kΩ or more
270kΩ or more
Yes Repair wiring
No 2-1
Replace indoor (water
Yes heat exchanger unit)
control board
Replace temperature
No
sensor
resistance
Less than 30Ω
Less than 30Ω
Less than 24Ω
Less than 24Ω
resistance
Less than 30Ω
Less than 30Ω
Less than 30Ω
Less than 24Ω
Less than 24Ω