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Problem
Failure to start or no air delivery
Inadequate air delivery with
cooler running
Inadequate cooling
Motor cycles on and off
Noisy
Excessive humidity in house
Musty or unpleasant odor
Water draining from cooler
SPECIFICATIONS: MMBT12
DIMENSIONS
H: 34-7/8"
AREA COOLED
MOTOR SPECS.
1/3 HP
ELECT. SPECS.
115 VOLTS
WEIGHT (LBS)
RESERVOIR
SPECIFICATIONS: MMBT14
H: 38-7/8"
DIMENSIONS
AREA COOLED
MOTOR SPECS.
1/2 HP
ELECT. SPECS.
115
WEIGHT (LBS)
RESERVOIR
TROUBLESHOOTING
Possible Cause
1. No electrical power to unit
• Fuse blown
• Circuit breaker tripped
• Electric cord unplugged or damaged
2. Belt too loose or tight
3. Motor overheated
•
Belt too tight
•
Blower bearings dry
4. Motor locked
1. Insuffi cient air exhaust
2. Belt too loose
3. Pads plugged
1. Inadequate exhaust in house
2. Pads not wet
•
Pads plugged
•
Open spots in pads
•
Trough holes clogged
•
Pump not working properly
1. Low voltage
2. Excessive belt tension
3. Blower shaft tight or locked
4. Bearings dry
1. Bearings dry
2. Wheel rubbing blower housing
3. Loose parts
1. Inadequate exhaust
1. Stale or stagnate water in cooler
2. Pads mildewed or clogged
3. Pads not wetting properly
•
Trough holes clogged
•
Pump not working properly
1. Float arm not adjusted properly
2. Drain assembly leaking
W: 32-5/8"
UP TO 600 SQ.FT.
2 SPEED
8.1 AMPS
DRY: 96
OPERATING:
8 GALLONS
W: 35-3/16"
UP TO 1100 SQ.
FT.80
2 SPEED
VOLTSTS
10.7 AMPS
DRY: 150
OPERATING:
11 GALLONS
D: 22-1/8"
1145 CFM
162H
BLOWER
MOTOR
D: 29-9/16"
PUMP
MOTOR
1600 CFM
242G
4
Remedy
1. Check power
• Replace fuse
• Reset breaker
• Plug in cords or replace if damaged
2. Adjust belt tension
3. Determine cause of overheating
• Adjust belt tension
• Oil blower bearings
4. Replace motor
1. Open windows or doors to increase air fl ow
2. Adjust belt tension or replace if needed
3. Replace pads
1. Open windows or doors to increase air fl ow
2. Check water distribution system
• Replace pads
• Repack pads
• Clean trough and unplug holes
• Replace or clean pump
1. Check voltage
2. Adjust belt tension
3. Oil or replace bearings
4. Oil bearings
1. Oil bearings
2. Inspect and realign
3. Tighten loose parts
1. Open doors or windows
1. Drain pan and clean pads
2. Replace pads
3. Check water distribution system
•
Clean
•
Replace or clean pump
1. Adjust fl oat
2. Tighten nut and drain cap.
ELECTRICAL SCHEMATIC
(FOR REFERENCE ONLY)
WHITE - COMMON
BLACK - HIGH
3
BLACK
1
RED - LOW
WHITE - COMMON
GREEN - GROUND
SWITCH
4
B
PLAIN
2
A
RIBBED - COMMON
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