SYMPTOMUnit fails to start or deliver air
| POSSIBLE CAUSES |
REMEDY |
- No electrical power to unit
- Fuse blown
- Circuit breaker tripped
- GFCI tripped
- Cord(s) unplugged or damaged
- Belt too loose or too tight
- Motor overheated and frozen
- Belt too tight or broken
- Blower wheel bearings dry
- Motor overloaded
- Faulty wiring or shorts
- Bad capacitor
|
- Check power
- Replace fuse*
- Reset breaker*
- Reset GFCI*
- Plug in cord(s) or replace if damaged
* If condition persists, call an electrician
- Adjust belt tension
- Replace motor
- Adjust belt tension or replace
- Lubricate blower bearings
- Using an ammeter, adjust motor to full load
nameplate amps
- Call electrician
- Replace capacitor
|
SYMPTOMUnit starts but air delivery inadequate
| POSSIBLE CAUSES |
REMEDY |
- Lack of sufficient air exhaust
- Motor underloaded (ducted units only)
- Belt too loose
|
- Open windows or doors to increase ventilation
- Using ammeter, adjust motor to full load
nameplate amps
- Adjust belt tension or replace if need
|
SYMPTOMInadequate cooling
| POSSIBLE CAUSES |
REMEDY |
- Inadequate exhaust in house
- Air registers improperly positioned
- Insufficient water / pad not wet
- Pad plugged
- Distribution holes clogged
- Pump not working
- Loose connection in water system
- Pump basket clogged
|
- Open windows or doors to increase ventilation
- Adjust to direct air as desired
- Check water distribution system
- Rinse or replace pad
- Clear holes
- Unplug pump. Clean impeller housing of foreign
matter
- Check for leaks and correct
- Clean basket
|
SYMPTOMMotor fails to operate
| POSSIBLE CAUSES |
REMEDY |
- Excessive belt tens
- Blower shaft tight or frozen
- Motor overloaded
- Incorrect sheave adjustment
- Pulleys misaligned
|
- Adjust belt tension
- Lubricate blower bearings
- Correct - do not excced motor nameplate amps
- Serviceman should correct
- Check and correct alignment
|
SYMPTOMWater draining from overflow standpipe
| POSSIBLE CAUSES |
REMEDY |
- Float arm improperly adjusted
- Seat in float valve leaking
- Standpipe not tight
|
- Adjust float
- Replace float valve
- Tighten standpipe
|
SYMPTOMKnocking or banging sound
| POSSIBLE CAUSES |
REMEDY |
- Bearings dry
- Wheel rubbing blower housing or A. Inspect blower shaft, collars, belt and pulley
rotating off-balance
|
- Lubricate blower bearings
- Inspect blower shaft, collars, belt and pulley
rotating off-balance alignment and motor mounting
|
SYMPTOMBlower shakes or rattles
| POSSIBLE CAUSES |
REMEDY |
|
- Inspect belt and adjust if needed. Adjust or replace pulley
|
SYMPTOMExcessive humidity in house
| POSSIBLE CAUSES |
REMEDY |
- Inadequate exhaust ventilation
|
- Open doors or windows to increase
|
SYMPTOMMusty or unpleasant odor
| POSSIBLE CAUSES |
REMEDY |
- Stale or stagnant water in sump
- Pads mildewed or clogged
- Pads not completely wet before
|
- Drain, flush and clean sump
- Replace pads
- Turn on pump before starting fan cooler is turned on
|
