Specifications

by johnson controls
20
Troubleshooting
17
Mode conict Mode conict
Shown
as Table
16
Flash 7
times
/ / E7 E7
Overload
protection
Overload
protection
E8
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Anti cold blow
protection
/
E9
/ / / / /
/
Indoor unit water
overow error
/ Flash Flash E9 E9
Trial run/trial
operation
Trial run/trial
operation
dd
Quick
ash
Quick
ash
Quick
ash
dd dd
Refrigerant
recovery mode
Refrigerant
recovery mode
Fo
Quick
ash
Quick
ash
/ Fo Fo
Drive module
resetting
(
for the
commercial unit)
IPM Drive
module resetting
P0
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Min. cooling/
heating
(capability
test code)
Cooling
IPLV test
P0
/
Quick
ash
/ P0
P0
Cooling
IPLV test
/ /
Quick
ash
P0
Mid. Cooling/
heating
(capability
test code)
Cooling level AA
performance test
P3
/
Quick
ash
/ P3
P3
Level AA cooling
performance test
/ /
Quick
ash
P3
Phase over-
current
protection
Compressor
over-current
protection
P5
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Drive board
communication
error(for the
commercial unit)
Communication
error between
the inverter
driver to the
main controller
P6
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Short/open
circuit of the
of the module
temperature
sensor
Short/open
circuit of the
of the module
temperature
sensor
P7
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Module
temperature
protection
Module
temperature
protection
P8
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
AC contact
protection (for
the commercial
unit)
AC contact
protection
P9
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Circuit sensor
error
Circuit sensor
error
Pc
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Transducer
connection
protection (for
the commercial
unit)
Transducer
connection
protection
Pd
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
AC current
protection(input
side)
AC current
protection(input
side)
PA
Flash 3
times
Flash 3
times
Flash 3
times
oE oE
Temperature
drift protection
(for the
commercial unit)
Temperature
drift protection
PE
Flash 3
times
Flash 3
times
Flash 3
times
oE oE