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30
ERROR CODES
DESCRIPTION
RECOVERY OR
NOT
PROBLEM POSSIBLE
REASONS
H4
Low pressure switch
“LPS” failure
YES
System pressure lower
than low pressure switch
limit
Low pressure switch failure
Instantaneous power-off
Stop valve closed
In cooling mode indoor unit
EXV close or block
In heating mode outdoor
unit EXV close or block
In heating mode outdoor
unit fan stop
In heating mode outdoor
unit air outlet block
E1
4 way valve protection
YES
4 way valve block
Outdoor unit PCB failure
E3
DC inverter discharge
temperature “Td” too
high shutdown
protection
NO
System less refrigerant
DC inverter compressor
failure
Compressor air return filtre
block
EXV open degree is samall
or EXV block
Gas pipe stop valve closed
Liquid pipe stop valve
closed
System exhaust sensor
failure
Outdoor unit PCB failure
E8
Coil Center temperature
sensor “Tcm” too
high
shutdown protection
YES
System over refrigerant
EXV open degree is small
or EXV block
System exhaust sensor
failure
Outdoor unit PCB failure
J2
The communication
between outdoor unit
and indoor unit failure
YES
The communication wire
between indoor and
outdoor units
disconnected, short circuit
or Connected incorrectly
Indoor unit power main
PCB failure
J3
The communication
between PCB and INV
module failure
YES
The connection between
driving module and main
PCB failure
The communication part of
outdoor unit control PCB
failure
Frequency driving board
failure
Compressor failure
Содержание RZNC100
Страница 6: ...6 CURVAS DE CAUDAL PRESIÓN DISPONIBLE UNIDADES CONDUCTO ...
Страница 80: ...16 Localização dos ganchos de suspensão Modelo 50 Modelo 70 Modelo 100 120 140 160 ...
Страница 129: ...7 Fan characteristics ...
Страница 130: ...8 N B Turbo speed can be only selected with remote control Not available for wired control ...