– 31 –
12
Maintenance
▼
Periodic Maintenance
• For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air
conditioner (including hot water module) in use be cleaned and maintained regularly to ensure efficient operation
of the air conditioner.
When the air conditioner (including hot water module) is operated for a long time, periodic maintenance (once a
year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof
treatment, if necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor
unit at least once every 3 months. Ask a professional for this cleaning / maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage,
and even compressor failure.
Inspection before maintenance
Following inspection must be carried out by a qualified installer or qualified service person.
▼
Maintenance List
It recommends that a pump and a strainer are maintained periodically.
Parts
Inspection method
Drain pan
Access from inspection opening and remove the front panel. Check if there is any clogging or drain
water is polluted.
Part
Unit
Check (visual / auditory)
Maintenance
Heat exchanger
Outdoor
Dust / dirt clogging, scratches
Wash the heat exchanger when it is
clogged.
Fan motor
Outdoor
Sound
Take appropriate measures when
abnormal sound is generated.
Air inlet / outlet grilles
Outdoor
Dust / dirt, scratches
Fix or replace them when they are
deformed or damaged.
Drain pan
Hot water module
Dust / dirt clogging, drain
contamination
Clean the drain pan and check the
downward slope for smooth drainage.
Exterior
Hot water module /
Outdoor
• Rust, peeling of insulator
• Peeling / lift of coat
Apply repair coating.
Water pipes
Hot water module
Rust, leakage
Evidence of leakage
Checking
Strainer
Hot water module
Dust / dirt clogging
Checking
Air vent valve
Hot water module
Air entrainment
Checking an air vent valve
13
Troubleshooting
<RBC-AMT32E>
Confirmation and check
When a trouble occurred in the hot water module, a
check code and indoor UNIT No. (including hot water
module) appear on the display part of the remote
controller.
The check code is only displayed during the operation.
If the display disappears, operate the hot water module
according to the following “Confirmation of trouble log”
for confirmation.
Confirmation of trouble log
When a trouble occurred on the hot water module, the
trouble log can be confirmed with the following
procedure. (The trouble log is stored in memory up to
4 trouble.)
The log can be confirmed from both operating status
and stop status.
1
When
and
buttons are pushed simultaneously
for 4 seconds or more, the following display appears.
If
is displayed, the mode enters in the trouble log
mode.
• [
01
: Order of trouble log] is displayed in CODE No..
• [Check code] is displayed in CHECK.
• [Indoor unit address in which a trouble occurred] is
displayed in Unit No..
2
Every pushing of
button used to set
temperature, the trouble log stored in memory is
displayed in order.
The numbers in CODE No. indicate CODE No. [
01
]
(latest)
→
[
04
] (oldest).
REQUIREMENT
Do not push
button because all the trouble log of the
indoor unit (including hot water module) will be deleted.
3
After confirmation, push
button to return to the
usual display.
Check code
Indoor UNIT No. (including hot
water module) in which a trouble
occurred
3
2
1
61-EN
62-EN
Содержание MMW-AP0481CHQ-E
Страница 38: ...EB99829001 ...
