Troubleshooting Guide; Limited Warranty - Champion MasterCool AD1C51 Owner's Manual

Problem Possible Cause
Failure to 1. No electrical power
start or no air to unit
delivery/ No • Fuse blown
LCD display • Circuit breaker tripped
2. Motor overheated
• Belt too tight
• Blower bearings dry
• Motor pulley diameter
too large
3. Motor locked
4. Fuse blown in unit
control box
5. Incorrect wiring be-
tween wall thermostat
and cooler
6. Poor connection to
Fan motor terminals
7. Unit control board or
wall thermostat faulty
Inadequate 1. Insuffi cient air exhaust
air delivery
with cooler 2. Belt too loose
running
3. Pads plugged
4. Motor underloaded
Register your product online at www.championcooler.com/eac/onlineregistration-eac.htm
This warranty is extended to the original purchaser of an evaporative cooler installed and used under normal conditions. It does not cover damages in-
curred through accident, neglect, or abuse by the owner. We do not authorize any person or representative to assume for us any other or different liability
in connection with this product.
Terms And Conditions Of Warranty
Lifetime Limited Coverage on water reservoir against any leakage due to defects in material. From date of purchase, if any original component part
provided by Champion Cooler fails due to defect in material or factory workmanship only, we will provide the replacement part as follows:
One year on the cabinet components.
Five years on the evaporative media.
Two years on the original blower motor if furnished by Champion Cooler.
Exclusions From The Warranty
We are not responsible for any incidental or consequential damage resulting from any malfunction.
We are not responsible for any damage received from the use of water softeners, chemicals, descale material, plastic wrap, or if a motor of a higher
horsepower than what is shown on the serial plate is used in the unit.
We are not responsible for the cost of service calls to diagnose cause of trouble, or labor charge to repair and/or replace parts.
How To Obtain Service Under This Warranty
Contact the Dealer where you purchased the evaporative cooler. If for any reason you are not satisfi ed with the response from the dealer, contact the Customer
Service Department: Champion Cooler, 5800 Murray Street, Little Rock, Arkansas 72209. 1-800-643-8341. E-mail: info@championcooler.com.
This limited warranty applies to original purchaser only.
110498-3

Troubleshooting Guide

Remedy
1. Check power
• Replace fuse
• Re-set breaker
2. Determine cause
• Adjust belt tension
• Oil blower bearings
• Adjust pulley to correct
diameter
3. Replace motor
4. Replace Fuse
5. Check that wiring is correct
and secured to terminals
6. Check connections to termi-
nal
7. Supply power to control box
and check DC voltage at
wall thermostat
• If voltage between Black
& Red terminals is close to
3.5VDC and LCD is blank
- wall thermostat is faulty
• If voltage is much less than
3.5VDC, remove red wire
from terminal. If voltage
rises to 3.5VDC - thermostat
is faulty. If voltage remains
low - unit control board is
faulty.
1. Open windows or doors to
increase air fl ow
2. Adjust belt tension or
replace if needed
3. Clean pads
4. Adjust pulley

Limited Warranty

Problem Possible Cause
Water drain- 1. Float arm not adjusted
ing onto roof properly
2. Overfl ow assembly
leaking
Musty or 1. Stale or stagnate water
unpleasant in cooler
odor
Motor cycles 1. Low voltage
on and off 2. Excessive belt tension
3. Blower shaft tight or
locked
4. Bearings dry
5. Motor pulley diameter
too large causing motor
overload
Noisy 1. Bearings dry
2. Wheel rubbing blower
housing
3. Loose parts
Inadequate 1. Inadequate exhaust in
cooling house
2. Pads not wet
• Pads plugged
• Dist. tube holes clogged
• Pump not working prop-
erly
3. Poor connection to Pump
terminals on Control
Board
Excessive 1. Insuffi cient air exhaust
humidity in
house
Remedy
1. Adjust fl oat
2. Tighten nut and overfl ow
pipe
1. Drain pan and clean pads
1. Check voltage
2. Adjust belt tension
3. Oil or replace bearings
(Unplug unit)
4. Oil bearings
5. Adjust pulley so full load
ampere rating of motor is
not exceeded
1. Oil bearings
2. Inspect and realign (Un-
plug unit)
3. Tighten loose parts
1. Open windows or doors to
increase air fl ow
2. Check water distribution
system
• Clean pads
• Clean
• Replace or clean pump
(Unplug unit)
3. Check connections
1. Open doors or windows
5