42 WHC/AQUASMART
GB - 16
Troubleshooting, guide for the owner and accessories
Table IV: Accessories
Description
Part number
42WHC016
42WHC020
42WHC028
Activated carbon filter
42HWX 900---102-40
Passive electrostatic filter
42HWX 900---103-40
Troubleshooting
The air conditioner will not start:
• The main switch is switched off, place the switch in the ON position.
• The fuses on the main switch are burnt out; replace the fuses.
• The selected temperature is higher than the room temperature in
the cooling mode or lower in the heating mode (the thermostat
does not allow the unit to start).
The Room Controller display does not work:
• Incorrect connection of 12V - GND SIGNAL supply cables.
• Verify that the connections to +12V and to GND are correct at the Room
Controller and at the unit terminal board (refer to the wiring diagram).
• After having checked the supply, correct the problem at the wiring
and switch the supply on again.
The Room Controller display does not work:
• No power supply.
• Check if this is the main unit power supply. The HY-NEC board
must operate normally (red LED on).
• After having checked the Room Controller wiring, switch the
supply on again.
The unit does not work, even though the supply cables are
correctly connected:
• The Room Controller is damaged.
• Replace the Room Controller.
The air conditioner does not supply enough cooling (or heating):
• The air cannot circulate freely.
• The filter is dirty and reduces the air quantity circulating.
• Doors and/or windows are open.
• Fan speed has been set to “low”.
• The air flow direction is not correct for optimal cooling.
• The selected temperature is not correct.
• The water flow rate is insufficient.
• Air is present in the hydronic circuit.
• The solenoid valve does not open.
The unit will not start:
• No supply, the window contact is not connected or incorrectly
configured.
• Check the supply, connect or configure the window contact correctly.
After inserting the batteries in the remote control, the display
does not illuminate:
• The batteries are exhausted or the polarity is incorrect; replace the
batteries or check polarity.
When pressing the start button, the unit does not acknowledge
the signal with a “beep”:
• The remote control batteries are exhausted; replace the batteries.
• The remote control has not been pointed correctly at the unit
receiver; turn the remote control off, and repeat the operation,
pointing the remote control in the correct direction.
• There are obstacles (curtains, partitions etc.) between the remote control
and the unit; repeat the operation after having removed the obstacles.
• The receiver on the unit or the remote control is exposed to
intense sun radiation; avoid direct sunlight on the unit, draw
curtains or shut shades, or move the remote control.
• Signal transmission is obstructed by severe electromagnetic field
interference; avoid sending signals when computers or household
appliances (food processors, coffee makers etc.) are operating close
by. Cellular or cordless telephones may also interfere with the control.
When pressing the stop button, the unit does not turn OFF and
does not acknowledge the signal with a “beep”:
• The remote control batteries are exhausted; replace the batteries.
• The remote control has not been pointed correctly at the unit
receiver; turn the remote control on, and repeat the operation,
pointing the remote control in the correct direction.
• There are obstacles (curtains, partitions etc.) between the remote
control and the unit; repeat the operation after having removed the
obstacles.
• The receiver on the unit or the remote control is exposed to
intense sun radiation; avoid direct sunlight on the unit, draw
curtains or shut shades, or move the remote control.
• Signal transmission is obstructed by severe electromagnetic field
interference; avoid sending signals when computers or household
appliances (food processors, coffee makers etc.) are operating
close by. Cellular or cordless telephones may also interfere with
the control.
When pressing any function button, the remote control shows
the function requested on the display, but the unit does not
acknowledge the signal with a “beep” and does not carry out
the function:
• The remote control batteries are exhausted; replace the batteries.
• The remote control has not been pointed correctly at the unit
receiver; turn the remote control off, and repeat the operation,
pointing the remote control in the correct direction and check that
the unit emits a “beep”.
• There are obstacles (curtains, partitions etc.) between the remote
control and the unit; removed the obstacles, re-select the function
repeat the operation, pointing the remote control in the correct
direction and check that the unit emits a “beep”.
• The receiver on the unit or the remote control is exposed to
intense sun radiation; avoid direct sunlight on the unit, draw
curtains or shut shades, or move the remote control.
• Signal transmission is obstructed by severe electromagnetic field
interference; avoid sending signals when computers or household
appliances (food processors, coffee makers etc.) are operating
close by. Cellular or cordless telephones may also interfere with
the control.
The remote control display does not change when any button
is pressed:
• The triangle symbol
is ON, whilst another signal is being transmitted;
wait for the signal
to disappear and then repeat the operation.
A slight mist is emitted from the unit:
• This can occur during cooling operation and is due to the cool air
coming into contact with the room air.
A slight noise after unit start up or immediately after shut down:
• This is the water beginning to circulate.
The unit emits unpleasant smells:
• This can be caused by substances accumulated on the unit air filters.
Switch the unit off, remove, clean and reinstall the filters. Restart the
unit in fan only mode and open the windows to change the room air.
The unit emits strange noises:
• Occasionally the unit makes strange noises at start-up, during
operation or after it has stopped. These are generally due to the
effect of temperature changes on the plastic components.
After having corrected possible faults, restart the air conditioner.
CAUTION: (units with electric heater):
• If the manually reset thermostat cuts out, contact your authorised
local dealer.
Guide for the owner
Once installation is complete, use this manual to train the user how
to correctly run the air conditioner and about selecting functions,
such as:
• Turning the unit on and off.
• Control functions.
Give this manual to the user for later reference.
