Friedrich 920-087-09 (12/10) operation manual Basic Troubleshooting, Complaint Cause Solution

Basic Troubleshooting

	COMPLAINT		CAUSE		SOLUTION
		●●	Unit turned off.	●●	Turn unit on
		●●	Thermostat is satisfied.	●●	Raise/Lower temperature setting.
		●● LCDI power cord is unplugged.		●● Plug into a properly grounded 3 prong recep-
					tacle. See "Electrical Rating Tables" on page
					13 for the proper receptacle type for your unit.
	Unit does not operate.	●● LCDI power cord has tripped.		●● Press and release RESET (listen for click;
					Reset button latches and remains in) to
					resume operation.
		●● Circuit breaker has tripped.		●● Reset the circuit breaker.
		●● Supply circuit fuse has blown.		●●	Replace the fuse.
		●●	Local power failure.	●● Unit will resume normal operation once power
					has been restored.
		●● Other appliances being used on same		●● The unit requires a single outlet circuit, not
			circuit.		shared with other appliances.
	Unit trips circuit breaker or	●● An extension cord is being used.		●● Do NOT use an extension cord with this or
					any other air conditioner.
	blows fuses.	●● Circuit breaker or time-delay fuse isn't		●● Replace circuit breaker or time-delay fuse
			of the proper rating.		for the proper rating. See "Electrical Rating
					Tables” on page 13. If problem continues
					contact a licensed electrician.
	LCDI Power Cord Trips	●●	The LCDI Power cord can trip (Reset	●● Press and release RESET (listen for click;
	(Reset Button Pops Out)		button POPS out) due to disturbances		Reset button latches and remains in) to
NOTE:	A damaged power supply cord must be		on your power supply line.		resume normal operation.
		●●	Electrical overload, overheating or	●● Once the problem has been determined and
	replaced with a new power supply cord		cord pinching can trip (Reset button		corrected, press and release RESET (listen
	obtained from the product manufacturer		POPS out) the LCDI power cord.		for click; Reset button latches and remains in)
	and must not be repaired.				to resume normal operation.
		●● The return/discharge air grille is		●● Ensure that the return and/or discharge air
			blocked.		paths are not blocked by curtains, blinds,
					furniture, etc
		●● Windows or doors to the outside are		●● Ensure that all windows and door are closed.
			open.
		●● The temperature is not set at a cool		●● Adjust the temperature control to a cooler or
			enough/warm enough setting.		warmer setting as necessary.
		●● The filter is dirty or obstructed.		●● Clean the filter, (See Recommended Mainte-
					nance) or remove obstruction.
		●● The indoor coil or outdoor coil is dirty		●● Clean the coils, (See Recommended Mainte-
			or obstructed.		nance) or remove obstruction.
		●● The temperature of the room you are		●● Allow additional time too cool a very hot room
Unit does not cool/heat room sufficiently, or cycles			trying to cool is extremely hot.
		●●	The outside temperature is below	●● Do not try to operate your air conditioner in
	on and off too frequently
			60º F.		the cooling in the cooling mode when the
					outside temperature is below 60º F. The unit
					will not cool properly, and the unit may be
					damaged.
		●● The digital control is set to fan cycling		●● Since the fan does not circulate the room
			mode.		air continuously at this setting, the room air
					does not mix as well and hot (or cold) spots
					may result. Using the continuous fan setting
					is recommended to obtain optimum comfort
					levels.
		●● The air conditioner has insufficient		●● Check the cooling capacity of your unit to en-
			cooling capacity to match the heat		sure it is properly sized for the room in which
			gain of the room.		it is installed. Room air conditioners are not
					designed to cool multiple rooms.

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