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INSPECTION DISPLAY, STANDBY, ROOM TEMPERATURE AND BACK UP DISPLAY
< WIRED REMOTE CONTROL (RC-EX3H) >
WHEN THE UNIT PROTECTION STOP IS INDICATED
CONTACT COMPANY & ERROR DISPLAY
If any error occurs on the hydro module unit, the "Unit protection stop" is indicated on the message display. Take the following measures,
stop the operation and consult your dealer.
1
The "Unit protection stop" is displayed on the message
Menu
6:57PM (Wed)
Menu
display.
Direction
Cooling
Set temp
Tap the
Normal display
Error display
Timer
When the
Error display
Prot.stp.ON E09 Touch here for contact.
History can be checked from Menu.
Back
Select the item.
F1: High power
F2: Energy-saving
2
Contents of error are displayed.
Error display
After checking the error contents (Code), tap the
Code
IU
OU
E07
000
IU000
Or tap the
Normal display
button on the previous screen and select the "Contact company" on the menu
E08
001
IU001
E09
002
IU002
screen and tap it.
E40
003
IU003
00
R/C :
Normal
Contact
Next
Back
Select the item.
3
Company information (Name and phone No. of contact) is displayed.
Contact company
This is displayed when it has been preset by your dealer.
Company
MHI
Phone No.
000-000-0000
Back
ROOM TEMPERATURE DISPLAY
If room temperature display setting is activated, room temperature is displayed on the remote control display.
Set temp
Room
The room temperature
display
STANDBY WAIT A WHILE DISPLAY
The message "Standby. Wait a while." may be displayed (maximum of 30 minutes) on the R/C during the first
Menu
operation following a breaker power on or power loss.
0:33 (Sat)
Direction
This does not indicate a failure; it is caused by the cooling machine oil protect control that is activated in order
Auto
Set temp
to protect the compressor.
Timer
Please wait until the message "Standby. Wait a while." disappears.
Standby. Wait a while.
F1: High power
F2: Energy-saving
BACK UP DISPLAY
When any error occurs on the OU but its operation is continued as an emergency measure, the message of
MEETING1
Menu
"Back-up" will be displayed.
16:41 (Mon)
When the "Back-up" is displayed, contact dealer/company shown as the Contact company immediately for
Direction
Cooling
Set temp
checking.
Timer
If the operation is continued without checking, it could result in breakdown.
Back-up
F1: High power
F2: Energy-saving
12
Menu
button.
Normal display
and
Error display
button is displayed, tap the
button.
Contact
button.
TROUBLE SHOOTING
Check the following items before requiring service.
THE UNIT DOES NOT WORK AT ALL
Is the power supply switch
Is there a blackout or is
turned off?
the fuse blown?
ON
OFF
If, after checking the items above, the hydro module unit still does not operate normally or in the next cases, stop operating and contact your dealer.
• If the fuse and breaker blow frequently.
• If water drips at cooling/dehumidifying operation.
• If the "unit protection stop" is indicated.
The phenomena mentioned below is not malfunction.
The hydro module unit system
Sounds of rustling or gurgling may be heard when the operation is started, when the compressor is
sounds as if water is draining
activated/deactivated during operation, or when the operation is stopped. These are the sounds of the
from it.
refrigerant flowing through the system.
Sounds of rustling or gurgling
These sounds can be heard when the hydro module unit system is performing automatic control.
may be heard from a stopped
indoor unit.
The indoor pump does not stop
The indoor unit pump may continue operating for 5 minutes in order to remove remaining heat in the
even when the operation is
indoor unit.
stopped in heating mode.
Do not turn off the power supply until the pump stops.
CAUTION
The hydro module unit system
During the first 3 minutes after stopping operation, it is not possible to perform cooling or heating
cannot start operating again
operation even if the ON/OFF button is pressed to indicate "operation." This is because a circuit for
immediately after stopping.
protecting the compressor is activated (the pump is operating during this period).
The outdoor unit discharges
Water or steam is discharged during defrosting operation which removes frost built up on the surface
water or steam during heating
of the heat exchanger in the outdoor unit in heating mode.
operation.
The outdoor unit fan is not
The fan speed is automatically controlled according to the ambient temperature. It may be stopped in
running even when the system
high ambient temperature in case of heating, and in low ambient temperature in case of cooling. Also,
is in operation.
the fan is stopped during defrosting operation.
The fan will suddenly begin to operate even if it is stopped. Do not insert finger and/or stick.
CAUTION
Slapping sounds are heard.
These sounds are generated when plastic components are expanded or shrunk by the heat and
rubbed with each other.
Hissing sounds are heard when
These sounds are generated when the refrigerant valve inside the hydro module unit is activated.
the operation is stopped or
during defrost operation.
The hydro module unit starts
In case the automatic restart function is enabled, and when the power supply recovers, the system
operation automatically as soon
restarts the operation automatically as same condition as before power supply is cut.
as the power supply is turned
on.
The setting temperature cannot
If changing the set temperature is prohibited on the remote control, it is not possible to change the
be changed.
temperature setting even ▼ or ▲ is pressed.
Even if the wired remote control
Is not "central controlling" or "center" displayed?
is operated, "central control"
If controlled with a separately purchased center console etc., the unit cannot be operated by the
light only flashes and doesn't
remote control.
operate.
POOR COOLING
Is the leakage breaker
• Is the direct daylight
activated?
coming into the room?
• Are there any
unexpected heat
Dangerous. Immediately
sources in the room?
turn off the power supply
• Are there too many
switch, and contact your
people in the room?
dealer.
• If the operation or operation noise is abnormal.
See page 13
See page 7
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