– 59 –
Hydro Unit
Installation Manual
Defect mode detected by the Outdoor Unit
F23
Low pressure sensor error
O
O
1. Check the connection (body or connection wiring) of
the low pressure sensor.
2. Check the resistance value of the low pressure
sensor.
F29
EEROM error
×
×
1. Replace the P.C. board. (Hydro unit)
F30
Extended IC error
×
×
1. Replace the P.C. board. (Hydro unit)
L02
Combination error
Model name of the outdoor unit is
different.
×
×
1. Check the model name of the outdoor unit.
L03
Duplicate main Hydro unit during
Group control
×
×
1. Set the address No. of the Rotary switch "SW01"
correctly for each Hydro unit.
L07
Communication error
×
×
1. Replace the P.C. board. (Hydro unit)
L09
Communication error
The capability code for the hydro unit
has not been set.
×
×
1. Check the setting of the FC01 capability
specifications.
HWS-455, 805xx-E = 0012
HWS-1405xx-E = 0017
L16
Setting error
When ZONE1 has not been set, while
ZONE2 has been set.
×
×
1. Check the body DP-SW12_2,3.
P31
Slave Hydro unit error which occurs
when error occurs in master Hydro
unit
×
O
1. Check the remote controller connection.
2. Defect in the remote controller.
3. Set the address No. of the Rotary switch "SW01"
correctly for each Hydro unit.
Check
code
Diagnostic functional operation
Determination and action
Operational cause
Backup
operation
Automatic
reset
F04
TD sensor error
O
×
1. Check the resistance value and connection of the
discharge sensor (TD).
F06
TE sensor error
O
×
1. Check the resistance value and connection of the
heat exchange temperature sensor (TE).
F07
TL sensor error
O
×
1. Check the resistance value and connection of the
heat exchange temperature sensor (TL).
F08
TO sensor error
O
×
1. Check the resistance value and connection of the
outdoor temperature sensor (TO).
F12
TS sensor error
O
×
1. Check the resistance value and connection of the
suction temperature sensor (TS).
F13
TH sensor error
O
×
1. Check the resistance value and connection of the
heat-sink temperature sensor (TH).
F15
TE, TS sensors error
O
×
1. Check for any wrong installation of the heat exchange
temperature sensor (TE) and the suction temperature
sensor (TS).
F31
EEPROM error
O
×
H01
Compressor breakdown
O
×
1. Check the power supply voltage.
2. Over-loaded condition of the refrigeration cycle.
3. Check that the service valve is fully open.
O ... Possible
× .... Not possible
Check
code
Diagnostic functional operation
Determination and action
Operational cause
Backup
operation
Automatic
reset
59-EN
Summary of Contents for HWS-1405XWHM3-E
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