Copa Multi Naya 12, User Manual

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57
USER'S MANUAL
Fault description
Fault
Code
F5
Causes of possible failure
Temperature protection of
compressor top cover • Damage of compressor top cover switch
• System blockage
F6
Fault with the Enviromental
temperature sensor on the
outdoor unit
• Damage of the Enviromental temperature sensor on the outdoor unit
• Poor contact of the Enviromental temperature sensor on the outdoor unit
• Damage of wiring of the Enviromental temperature sensor on the
outdoor unit
• Damage of the main PCB on the outdoor unit
F7
Fault with the over-voltage or
low voltage protection • Excessive in put voltage
• Lower in put voltage
• Damage of the driver PCB on the outdoor unit
• Damage of the main PCB on the outdoor unit
• Poor wiring
F8
Communication error
between the driver PCB and
main PCB of the outdoor unit
• Chip damage
FA
F9
Fault with the suction
temperature sensor
Fault with the outdoor unit
EEPROM
• Damage of the suction temperature sensor on the outdoor unit
• Poor contact of the suction temperature sensor on the outdoor unit
• Damage of wiring of the suction temperature sensor on the outdoor unit
• Damage of the main PCB on the outdoor unit
H1
Fault with the drainage on N#
lndoor unit
• Float switch disconnected or poor wiring
• Error setting of model paramerers
• Drain plug
• Damage of the pump
H2
H3
Communication error between
the wired controler and main
PCB of the N# indoor unit
Fault of temperature sen sor
at N # evaporator inlet
• Poor wiring
• Damage of the wired controler
• Damage of the main PCB on the indoor unit
• Damage of temperature sensor at N # evaporator inlet
• Poor conta et of temperature sensor at N # evaporator inlet
• Damage of wiring of temperature sensor at N # evaporator inlet
• Damage of the main PCB on the outdoor unit
H4
Fault of temperature sen sor
at N# evaporator outlet
• Damage of temperature sensor at N# evaporator outlet
• Poor conta et of temperature sensor at N# evaporator outlet
• Damage of wiring of temperature sensor at N# evaporator outlet
• Damage of the main PCB on the outdoor unit
H5
Protection lower temperature
discharge • Temperature sensor shedding
• Damage of the main PCB on the outdoor unit
H6
H7
Low pressure switch
protection • Lack of the refrigerant
• Stop valve unopened
• Damage of low pressure switch
Low pressure protection • Lack of the refrigerant
• Heat exchanger viscera