EMERGENCY OPERATION
62
• Main PCB assembly (Indoor)
Error
Code
Description Main Reasons
01* Problem in Remote Room Air sensor
Remote air temperature sensor of
Main PCB(indoor) is open or short.
02**
Problem in Refrigerant (Inlet side)
sensor
Refrigerant inlet pipe temperature
sensor of indoor unit is open or short..
03****
Communication error between indoor
unit and wired remote controller
Communication between wired
remote controller and indoor unit is
not possible.
05**
Communication error between Main
PCB(Indoor) and Main PCB(Outdoor
Cycle)
There is no communication between
the Main PCB(Indoor) and the Main
PCB(Outdoor cycle).
06**
Problem in Refrigerant pipe sensor
(Outlet side)
Refrigerant outlet pipe temperature
sensor of indoor unit is open or short.
08*** Problem in Water Tank sensor
Domestic hot water tank temperature
sensor of indoor unit is open or short.
09**** PCB Program (EEPROM) Fault
The optional EEPROM is loosely
inserted in or disconnected from the
Main PCB(Indoor)
13*** Problem in Solar-thermal sensor
Solar pipe temperature sensor of
indoor unit is open or short.
14**** Problem in Flow rate
Low flow detection during pump
operation
15**** Overheating of water pipe
The temperature of the water pipe has
exceeded a certain temperature.
16**** Problems in sensors
An error code 17,18,19 error has
occurred at the same time.
17* Problem in Water-inlet sensor
Water inlet pipe temperature sensor
of indoor unit is open or short.
18* Problem in Water-outlet sensor
Water outlet pipe temperature sensor
of indoor unit is open or short.
19*
Problem in Elec/Heater Water-outlet
sensor
Electric backup heater outlet
temperature sensor of indoor unit is
open or short.
20**** Electric heater overheated
Fuse of electric heater is blown due to
overheat.
231* Problem in Water Pressure Sensor
Water Pressure Sensor of indoor unit
is damaged.
232**** Problem in Flow Sensor
Flow Sensor of indoor unit is
damaged.
• Notice of error code
− Slight Trouble : *
− Heavy Trouble : **
− Other Trouble(O-Trouble) : ***
− Critical Trouble / Error : ****
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