
Fan rubbing on housing.
Fan out of balance due to dirt,
bent blade etc.
Air conditioner delivering more air
than required.
Belt "squelching".
Belt "squealing".
Inadequate sized ducts or grilles.
Loose water distribution
connections.
High mineral content in water
supply.
Air conditioner located near the
source of unpleasant odour.
New Pads fitted
Algae in tank.
Pad remains wet after shutdown.
Break in water distribution system.
Too much water to pads.
Reposition fan.
Clean fan, adjust blades if
possible: Replace fan.
Adjust any baffles or balance air to
reduce airflow.
Adjust alignment of motor and
pulleys.
Tighten belt by adjusting motor
platform: Replace belt.
Increase grille size.
Tighten all connections.
Increase the bleed rate.
Relocate the air conditioner or
remove the odour source.
Will go after short time.
Drain tank and clean thoroughly,
fill with clean water and install new
pads.
Allow fan to run for further 10
minutes after pump has been shut
off.
Replace any cracked or broken
tubing.
Ensure filter pads are correctly
installed.
Replace with new filter pads.
Check restrictor tap setting and
adjust if required.
Blocked Pads
Trouble Shooting.
PROBABLE CAUSE SUGGESTED REMEDY
Noisy Air
Conditioner.
Unpleasant
odour.
Water being thrown
into area being
cooled.
Formation of white
deposits in tank
and on pads.
RP INDUSTRIAL AIR CONDITIONERS
19
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