Friedrich KCL24A30B User Manual

48 PB
TROUBLESHOOTING
COMPLAINT CAUSE SOLUTION
Electronic control
board does not turn unit off
Compressor relay contacts stuck Replace electronic control board
Incorrect wiring Refer to appropriate wiring diagrams
Unit undersized for area to be cooled Refer to industry standard sizing chart
Defective thermistor Replace thermistor or electronic control board
Compressor runs for short
periods only.
Incorrect wiring Refer to appropriate wiring diagram
Shorted or incorrect capacitor Test capacitor and replace if needed.
Restricted or low air ow through
condenser coil or evaporator coil
Check for proper fan speed or blocked coils.
Correct as needed.
Compressor running abnormally hot
Check for kinked discharge line or restricted
condenser. Refrigerant overcharge. Check am-
perage, connections.
Unit does not turn on
No power
Check power supply. Check LCDI plug. Check
wire connections. Check if panel is locked.
Incorrect wiring Refer to appropriate wiring diagram
Defective thermistor Replace thermistor or electronic control board
Noisy operation
Poorly installed
Refer to Installation Manual for proper instal-
lation
Fan blade striking chassis Reposition - adjust motor mount
Compressor vibrating
Check that compressor grommets have not
deteriorated. Check that compressor mounting
parts are not missing
Improperly mounted or loose cabinet
parts refrigerant tubes
Check assembly & parts for looseness, rubbing
& rattling pipes, etc.
Water Leaks into Room
Evaporator drain pan overowing Clean obstructed drain trough
Condensation forming underneath
base pan
Evaporator drain pan broken or cracked. Reseal
or replace. No chassis gasket installed. Install
chassis gasket
Poor installation resulting in rain en-
tering the room
Check installation instructions. Reseal as re-
quired
Condensation on discharge grille
louvers
Dirty evaporator coil. Clean coils (See Routine
Maintenance) Environmental phenomena: point
supply louvers upward. Put on high fan.
Chassis gasket not installed Install gasket, per Installation manual
Downward slope of unit is too steep
inward
Refer to installation manual for proper instal-
lation
Tips continued

Friedrich KCL24A30B Specifications

General

Brand	Friedrich
Model	KCL24A30B
Category	Air Conditioner
Language	English