IM 818
Page 23
Service and Maintenance
The unit is designed to give long life operation with mini-
mum maintenance required. However, it should be regularly
checked and the following items should be given due atten-
tion.
WARNING
Disconnect the main power supply before performing any
service, maintenance or troubleshooting.
Item
Maintenance Procedures
Frequency
Indoor Unit
Air Filters
1. Remove the filter before cleaning it.
2. Remove the dust adhering on the filter by using a vacuum cleaner or wash
with lukewarm water (below 40°C/104°F) with neutral detergent solution.
3. Rinse well and dry the filter before placing it back onto the unit.
Note. Do not use gasoline, volatile substances or chemicals to clean the
filter.
At least once a month.
Indoor Unit
Clean the grille and panel by wiping it using soft cloth soaked in lukewarm
water (below 40°C/104°F) with neutral detergent solution.
Note. Do not use gasoline, volatile substances or chemicals to clean the
unit.
Every year.
Condense Drain Pan and
Pipe
Check and clean if necessary.
Every year.
Indoor Fan
Check for abnormal noise.
Every year.
Indoor/Outdoor Coil
Clean the louvers and coil. Be careful not to bend or flatten the aluminium fins.
DO NOT use cleaning fluids that might corrode the coil.
Every year.
Power Supply
1. Check the running current and voltage for indoor and outdoor units.
2. Check the electrical wiring and tighten the terminals.
Every year.
Compressor
No maintenance needed if refrigerant circuit remains sealed. However, check
for refrigerant leaks at joints and fittings.
Every year.
Compressor Oil
Oil is factory charged. Not necessary to add oil if circuit remains sealed.
No maintenance required.
Fan Motor Oil
All motors are pre-lubricated and sealed at factory.
No maintenance required.
