58 PB
TROUBLESHOOTING
COMPLAINT CAUSE SOLUTION
Water “spitting” into room
Sublimation:
When unconditioned saturated,
outside air mixes with conditioned
air, condensation forms on the cooler
surfaces
Ensure that foam gaskets are installed in between window
panes & in between the unit & the sleeve. Also, ensure that
fresh
air/exhaust vents (on applicable models) are in the closed
position & are in tact
Downward pitch of installation is too
steep towards back of unit
Follow installation instructions to ensure that downward pitch
of installed unit is no less than 1/4” & no more than 3/8”
Restricted coil or dirty lter
Clean & advise customer of periodic cleaning & maintenance
needs of entire unit
Excessive moisture
Insufcient air circulation thru area to
be air conditioned
Adjust louvers for best possible air circulation
Inadequate vapor barrier in building
structure; particularly oors.
Advise customer
Unit short cycles
Defective thermistor Replace thermistor or electronic control board
Unit oversized See sizing chart. Correct as needed.
Chassis seal gasket not sealing or
absent causing unit to short cycle
Check gasket. Reposition or replace as needed
Restricted coil or dirty lter
Clean & advise customer of periodic cleaning & maintenance
needs of entire unit
Prolonged off cycles
Defective indoor ambient thermistor or
electronic control board
Check alarms. Replace thermistor or electronic control board
Outside water leaks
Evaporator drain pan cracked or
obstructed
Repair, clean or replace as required
Obstructed condenser coil Use pressure wash or biodegradable cleaning agent to clean
Fan blade/ slinger ring improperly
positioned
Adjust fan blade to 1/2” of condenser coil n pack
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