Instruction manual

12
MobileMAX
Section 7 - TROUBLESHOOTING
This is a list of some common service problems, with probable causes and suggested remedies.
PROBLEM
Inadequate cooling
PROBABLE CAUSE
Insufficient fresh air.
Insufficient air discharge openings
or inadequate exhaust from area
being cooled, causing high
humidity and discomfort.
Undersized cooler.
Clogged or dirty filter pads.
Dry pads or lack of water while
cooler is in operation.
Excessive Ambient Humidity (see
also item above re: inadequate
exhaust).
Fan turning backwards.
Fan running too slow.
Belt slipping.
Faulty water pump.
NOTE: This cooler is equipped
with an electronic safety system
which continuously monitors the
condition of the water pump. This
safety system will automatically
turn the isolating switch to OFF
position when a water pump defect
is detected.
SUGGESTED REMEDY
Ensure cooler is located adjacent
to a door or adequate fresh air
supply.
Make sure there is adequate
provision for exhausting air from
area being cooled (open windows
and/or doors).
Replace with larger cooler or
additional coolers.
Clean or replace pads.
Check water distribution system for
possible obstruction in tubing.
Check Pump.
On days during the summer when
the ambient humidity is high, the
cooler will not reduce temperature
as much as on drier days. There is
no remedy except to shut off the
pump.
Reconnect motor for correct
rotation.
Check motor amps. If below name
plate amperage, re-adjust motor
(sheave) pulley to increase fan
speed.
Tighten belt by re-adjusting
position of motor. Replace belt if
worn.
Replace the water pump and reset
the isolating switch to ON position.