Service And Maintenance; Troubleshooting - Daikin FDMRN20AV1K Installation Manual

Service Parts
Indoor Air Filter 1.
2.
3.
Indoor Unit 1.
2.
Indoor Fan 1.
Avoid direct contact of any coil treatment cleaners on plastic part. This may cause plastic part to deform as a result of
chemical reaction.
For any enquiries on spare part, please contact your authorized dealer. When any malfunction of the air conditioner
unit is noted, immediately switch off the power supply to the unit. Check the following fault conditions and causes for
some simple troubleshooting tips.
Fault
1. The compressor does not start operate after 3 minutes from
starting the air conditioner unit.
2. The air conditioner unit does not operate.
3. The air flow is too low.
4. Discharge air flow has bad odor.
5. Condensation on the front air grille of the indoor unit.
6. Water flowing out from the air conditioner unit.
If the fault persists, please call your local dealer / serviceman.

SERVICE AND MAINTENANCE

Maintenance Procedures
Remove any dust adhered on the filter by using a vacuum cleaner or
wash in lukewarm water (below 40°C) with neutral cleaning detergent.
Rinse well and dry the filter before placing it back onto the unit.
Do not use gasoline, volatile substances or chemical to clean the filter.
Clean any dirt or dust on the grille or panel by wiping it using soft
cloth soaked in lukewarm water (below 40°C) with neutral detergent
solution.
Do not use gasoline, volatile substances or chemical to clean the indoor
unit.
Check for any abnormal noise.
! CAUTION

TROUBLESHOOTING

Causes/Action
- Protection against frequent starting. Wait for 3 to 4 minutes
for the compressor to start operate.
- Power failure, or the fuse need to be replaced.
- The power plug is disconnected.
- It is possible that your delay timer has been set
incorrectly.
- The air filter is dirty.
- The air suction and discharge are clogged.
- The regulated temperature is not high enough.
(applicable for auto-fan mode only)
- Odors may be caused by cigarettes, smoke particles,
perfume etc. which might have adhered onto the coil.
- This is caused by air humidity after an extended long period
of operation.
- The set temperature is too low, increase the temperature
setting and operate the unit at high fan speed.
- Switch off unit and call local dealer / serviceman.
19
Period
At least once every
2 weeks.
More frequently
when necessary.
At least once every
2 weeks.
More frequently
when necessary.
When necessary.