Sanyo STW-2 owner manual Tips for Energy Saving, Troubleshooting

US STW PTAC 8/8/01 5:34 PM Page 5

Control Panel

The control panel is shipped with a protective plastic film. This film can be left on or removed. To clean, use a damp cloth and mild detergent.

Outdoor Coil

The coil on the outdoor side of the unit should be checked periodically and cleaned if clogged with dirt or soot from the atmosphere. If extremely dirty, it may need to be professionally steam cleaned.

Base Pan

In some installations, dirt or other foreign matter may be blown into the unit from the outside and settle in the base pan (the bottom of the unit). Check the base pan periodically and clean it out, if necessary.

Tips for Energy Saving

Do not

•Block the air intake and outlet of the unit. If they are obstructed, the unit will not work well, and may be damaged.

•Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.

Do

•Keep the air filter clean. (Refer to “Care and Cleaning.”)

A clogged filter will impair the performance of the unit.

•To prevent conditioned air from escaping, keep win- dows, doors and any other openings closed.

•Keep the ventilator closed for economy and maximum cooling.

Troubleshooting

PROBLEM	POSSIBLE CAUSE
AIR CONDITIONER	• The power cord is not plugged in or
DOES NOT	circuit breaker is tripped.
OPERATE
AIR CONDITIONER	• The unit is waiting for the compressor
“DOES NOT COOL	overload protector to reset.
OR HEAT AS IT	• Curtains, blinds or furniture blocking
SHOULD”
	the front of the air conditioner are
	restricting the air flow.
	• Thermostat control may not be set
	high/low enough. Turn the control to a
	lower or higher position. (NOTE: In
	some installations, the thermostat
	control cannot be turned all the way to
	the highest end or lowest end. This is
	normal. Do not attempt to force the
	control beyond its stopping points.)
	• A dirty air filter is blocking air flow.
	The filter should be cleaned at least
	once every 2 weeks. See the instruc-
	tions in the cleaning section.
	• The room may have been very hot or
	very cold when the air conditioner
	was first turned on. Allow time for it
	to cool down or warm up.
	• The ventilation control may be set to
	the OPEN position, allowing outside
	air to enter the room.
“BURNING” ODOR	• Dust on the surface of the electrical
AT START OF	heater can cause a “burning” odor at
HEATING	the beginning of the heating opera-
OPERATION	tion. This odor should quickly fade.
OPERATING	• Relay clicks may be heard when the
SOUNDS	compressor or fan cycles on and off.
	This is normal.
	• The fan runs continuously when the
	unit is operating unless the Fan Cycle
	Switch under the control panel is set
	to CYCLE. In this case, the fan cycles
	on and off with the electrical heater
	or compressor.
AIR IS NOT	• The Fan Cycle Switch may be set to
ALWAYS COOL	Fan Cont (continuous). This causes
DURING COOLING	the fan to blow room air even when
OPERATION	the compressor is off. The continuous
	air flow provides better overall tem-
	perature control.
AIR IS NOT	• The Fan Cycle Switch may be set to
ALWAYS HOT	Fan Cont (continuous). This causes
DURING HEATING	the fan to blow room air even when
OPERATION	the electrical heater is off. The contin-
	uous air flow provides better overall
	temperature control.

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