Bad smell from indoor unit

[sachin230]

Daikin VRV III ,Indoor unit Model - FXFQ100PVE. Some times there is very bad smell comes from indoor unit & that time indoor unit make abnormal sound.(Bad smell not found continous).
please suggest the solution.

[james10]

disinfect evap coil, clean drains wash filters, check condensate pump
Basically give it a good service if all else fails
BRING OUT THE SMELLY JELLY

[brunstar]

how long has the unit been installed?
what kind of environment is it installed in?

[sachin230]

Hello brunstar,unit is installed & commissioned before one year. & unit is in closed room 216 sq feet

[Tesla]

After a real good clean as james mensioned above chuck in a biocide tablet in drain tray (you may have to break it into smaller pieces) it will help kill the bugs if they are causing smell.