LG THERMA V AHBW076A0, Руководство по обслуживанию, Страница: 51 / 98

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1.4 Remote Controller
To solve various troubles while using control panel, please read following FAQ (Frequently Asked Questions).
For your convenience, all questions are classified according to topics.
No Topic Question Answer
1
2
3
Power button does
not bright
Some icons are dis-
played automatically
Water tank heating
or related features
are not permitted
System installation is fin-
ished. Also, all wirings in-
cluding power connection
is all right. But when the
power button in front of the
control panel is pushed, it
does not bright.
Although nobody touched
control panel, someties it
displays specific icons and
the system operates auto-
matically.
Setting water tank temper-
ature is not permitted al-
though the water tank is
installed.
• There can be a problem in wiring between PCB
and control panel. Open control box and find
‘CN_REMO’ connector at the PCB. If the connector
is empty or nothing is connected, please connect it
with end of wire which is from control panel then
restart the system.
• Check if external controller is connected like ther-
mostat. If thermostat is connected to the system
and it is configured exactly, you can see ‘Thermo-
stat Icon ( )’ at the display of the control panel.
It is normal condition that power button of control
panel does not work when thermostat is installed.
• It is normal condition. Basically, two features can
be operated without user’s decision – one is sys-
tem protective operation, the other is ‘background
water tank heating operation’, which is heating in-
side the water tank while space heating is not used
or the system is not working. System protective op-
eration is, as letter says, for the purpose of secur-
ing the system from worse condition. Anti-freezing
operation, for example, is one of the protective op-
eration. It is essential to start protective operation
to prevent potential malfunction and to keep possi-
ble accidents. On the other hand, background
water tank heating operation is not protective oper-
ation but to supply warm water to end-user. The
background water tank heating operation is only
started when the water tank temperature is under
the specific temperature.
Following two conditions should be satisfied.
• Check if ‘Water tank enable/disable’ button is cor-
rectly pushed or not. To use water tank, end-user
must push button and highlight icon.
Otherwise, water tank heating is disabled.
• Also, check if DIP switch setting is correct or not.
To identify the DIP switch setting, open the control
box inside the unit. Unless 2nd and 3rd pin of DIP
switch setting is 01(OFF-ON) or 10(ON-OFF), the
water tank heating will not be configured.