Trouble Diagnosis; Contents Of Remote Controller Switch Alarm Display - Panasonic U-10MF1E8 Service Manual

1. Contents of Remote Controller
Switch Alarm Display
Serial Remote controller is detecting
communication error signal from indoor unit.
errors
Mis-setting
Indoor unit is detecting error signal from remote controller and system controller.
Indoor unit is detecting error
signal from outdoor unit.
Outdoor unit is detecting error
signal from indoor unit.
Improper setting
Improper setting
Indoor unit communication
error of group control wiring.
During auto. address setting,
number of connected units
does not correspond to number
set.
Improper setting
5
Thermistor Indoor unit
fault
Possible cause of malfunction
Error in receiving serial communication signal. (Signal from
main indoor unit in case of group control) Outdoor system
address, indoor unit address, or indoor unit address
independent/main/sub unit setting has not been made.
(Auto address is not completed.)
Error in transmitting serial communication signal.
• Error in receiving serial communication signal.
• When turning on the power supply, the number of
connected indoor units does not correspond to the number
set. (Except R.C. address is "0.")
• Group wiring failure of indoor units in the refrigerant system
(occurring when remote controller is operated immediately
after automatic address setting)
• Error in receiving serial communication signal.
• There is an indoor unit which does not send signals when
the power is ON.
• Indoor unit address setting is duplicated.
• Duplicated remote controller "main" setting.
Automatic address setting start is prohibited.
AP pin was short-circuited at time when automatic address
setting was started.
Error of main indoor unit in receiving serial communication
signal from sub indoor units.
Number of connected indoor units is less than the number set.
Number of connected indoor units is more than the number set.
No indoor unit is connected during auto. address setting.
Main outdoor unit is detecting error signal from sub outdoor unit.
Duplicated outdoor unit address.
Mismatch in "No. of outdoor units" setting.
Error of sub outdoor unit in receiving serial communication
signal from main outdoor unit.
Connected indoor unit is not a multi unit.
Duplication of main indoor unit address setting in group control.
Group control wiring is connected to individual control indoor unit.
Indoor unit address is not set.
Capacity code of indoor unit is not set.
Incorrect wiring of remote group control wiring (in case of
shared solenoid valve kit)
Mismatch of outdoor unit type.
Duplication of outdoor R.C. address setting.
Capacity code of outdoor unit is not set.
Indoor coil temp. sensor (E1)
Indoor coil temp. sensor (E3)
Indoor suction air (room) temp. sensor
Indoor discharge air temp. sensor
5 - 2
3-WAY SYSTEM

Trouble Diagnosis

ON: Blinking: OFF:
Wired
Wireless
remote
remote controller
control
receiver display
display
Operating lamp
<E01>
blinking
<E02>
<<E03>>
E04
Heating ready lamp
blinking
E06
<<E08>>
<<E09>>
Operating lamp
blinking
E12
E18
E15
E16
E20
Heating ready lamp
blinking
E24
E25
E26
E29
<<L02>>
<L03>
Operating and heating
L07
ready lamps blinking
L08
simultaneously
<<L09>>
L11
L17
Operating and heating
L04
ready lamps blinking
simultaneously
L10
<<F01>>
Operating and
timer lamps blinking
<<F03>>
alternately
<<F10>>
<<F11>>
Continued