Bonaire B Series Light Commercial - Manual (Page 26)

I NSTALLATION , O PERATION & M AINTENANCE
Service & Maintenance
PROBLEM PROBABLE CAUSE SUGGESTED REMEDY
•
Pump motor failure. • Replace complete pump.
• Loose electrical connections. • Tighten electrical connections.
Pump fails to
operate
• Pump control switch faulty. • Replace pump control switch.
•
Insufficient water in pan. • Adjust float level.
•
Pump strainer blocked. • Clean strainer.
• Blocked water in tubing. • Clean the tubing.
Pump runs but
does not
circulate water;
Pump runs but
pads lack water • Foreign matter lodge in the water
distribution piping. • Clean out foreign matter.
•
Fan rubbing on housing. • Re-position fan.
•
Fan out of balance due to dirt, etc. • Clean fan.
•
Air conditioner delivering more air
than needed. • Adjust ducting baffles to reduce airflow
or balance flow to outlets.
•
Belt ‘squealing’. • Tighten belt by adjusting motor. Apply
belt dressing to belt. In some cases it
may be necessary to replace belt.
Check the pulley alignment
Noisy air
conditioner
• Inadequately sized ducts or grilles. • Increase size or add additional ducts or
grilles.
Continuous
overflow of
water
•
Float valve adjustment incorrect. • Adjust float valve.
• Loose water tubing connections. • Tighten all connections.
•
•
Break in water tubing.
Too much water from the pump
•
•
Replace any cracked or broken tubing.
Adjust the dialflo outer knob to reduce
the flow of water to the filter pads.
Water into the
duct work
•
Air conditioner located near source
of unpleasant odour. • Remove source of odour or place a
barrier between air conditioner and
source of odour.
•
Algae in pan water. • Drain pan and clean thoroughly. Fill
with fresh water. Install new pads.
Unpleasant
odour
•
Pads remain wet after shut down. • Allow fan to run for about 10 minutes
after pump is shut off to dry out pads.
Rapid formation
of white
deposits
•
High mineral content of supply
water. • Increase the bleed rate. Fit a dump
valve and timer for cyclic dumping.
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