Friedrich SH20L30-A, SH20L50-A TROUBLESHOOTING Continued, Problem, Possible Cause, To Correct

TROUBLESHOOTING (Continued)

PROBLEM	POSSIBLE CAUSE	TO CORRECT
	Defective switch (On-Off).	Check continuity across terminals 2 and 3.
	Fan capacitor open.	Check by substituting a known good capacitor of the
		same rating.
FAN MOTOR DOES	Inoperative fan motor.	Direct test fan motor.
NOT RUN.	Incorrect wiring of fan circuit.	Connect per wiring diagram.
	Relay open.	Replace Relay.
	Check for seized motor bearings.	Rotate by hand, add oil, if noisy, replace.
	Bound fan blade or blower wheel.	Adjust for proper clearance.
SWITCH (ON-OFF)
DOES NOT CUT	Selector Switch Relay	Replace selector switch. Replace relay.
FAN MOTOR OFF.
	Poor installation.	Refer to Installation Instructions for proper installation.
	Fan blade striking chassis.	Adjust motor mount to attain proper fan blade and
		blower wheel clearance.
NOISY AND/OR	Compressor vibrating.	Check for deteriorated compressor grommets, or
VIBRATION.		missing mounting parts.
	Loose cabinet parts, improperly
	mounted components, tubing	Adjust and tighten as required.
	rubbing.
	Evaporator drain pan	Clean obstructed drain trough.
	overfl owing.
WATER LEAKS	Condensation forming on bottom	Evaporator drain pan broken or cracked. Reseal or
INTO ROOM.	of base pan.	replace.
	Water dripping from discharge	Dirty evaporator coil, or extremely high humidity
	air grilles.	conditions. Clean coil with steam or detergent.
	Evaporator drain pan cracked or	Repair and clean, or replace as required.
	obstructed.
	Water in center section of base	Remove condenser shroud, Clean and remove old
OUTSIDE WATER		sealer from base pan and shroud. Apply new sealer,
	pan (compressor area).
LEAKS.		reinstall and check.
	Dirty Condenser coil.	Clean with steam or detergent.
	Fan blade and slinger ring	Adjust fan blade to 1/2" clearance from condenser coil.
	improperly positioned.

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