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Air conditioner power supply cord trips (Reset button pops out) 
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Disturbances in your electrical current can rip (Reset button will 
pop out) the power supply cord. 

Press and release RESET (listen 

for click; Reset button will latch and remain in) to resume operation. 
 

Electrical overloading, overheating, pinched cord can trip 
(Reset button will pop out) the power supply cord. 

After correcting the problem, press and release RESET (Listen for 
click; Reset button will latch and remain in) to resume operation. 
 

NOTE: 

A damaged power supply cord must be replaced with a new 

power supply cord obtained from the product manufacturer and must 
not be repaired. 
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Air conditioner seems to run too much 
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The current air conditioner replaced an older model. 

The use of 

more efficient components may cause the air conditioner to run 
longer than an older model, but the total energy consumption will be 
less. Newer air conditioners do not emit the blast of cold air you may 
be accustomed to from older units, but this is not an indication of 
lesser cooling capacity or efficiency. Refer to the efficiency rating 
(EER) and capacity rating (in BTU/hr.) marked on the air conditioner. 
 

The air conditioner is in a heavily occupied room, or heat-
producing appliances are in use in the room. 

Use exhaust vent 

fans while cooking or bathing and try not to use heat-producing 
appliances during the hottest part of the day. A higher capacity air 
conditioner may be required, depending on the size of the room 
being cooled. 
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Air conditioner cycles on and off too much, or does not 
cool/heat room in cooling/heating mode 
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The Mode or Fan control is set to Power Saver (on some 
models). 

Use power Saver only when you are asleep or away from 

home, since the fan does not circulate the room air continuously. 
Use Low Cool, High Cool or Turbo Cool for your best comfort. 
 

The air conditioner is not properly sized for your room. 

Check the cooling capabilities of your room air conditioner. Room air 
conditioners are not designed to cool multiple rooms. 
 

The filter is dirty or obstructed by debris. 

Clean the filter. 

 

The inside evaporator and outside condenser coils are dirty or 
obstructed by debris. 

See Annual Maintenance. 

 

 

There is excessive heat or moisture (open container cooking, 
showers, etc.) in the room. 

Use a fan to exhaust heat or moisture 

from the room. Try not to use heat producing appliances during the 
hottest part of the day. 
 

The louvers are blocked. 

Install the air conditioner in a location 

where the louvers are free from curtains, blinds, furniture, etc. 
 

The outside temperature is below 65ºF (18ºC). 

 Do not try to 

operate your air conditioner in the cooling mode when the outside 
temperature is below 65ºF (18ºC). 
 

The temperature of the room you are trying to cool is extremely 
hot. 

Allow extra time for the air conditioner to cool off a very hot 

room. 
 

Windows or doors to the outside are open. 

Close all windows and 

doors. 
 

The Vent control is set to OPEN (on some models). 

Push the 

Vent control to CLOSED for maximum cooling and/or heating. 
 

The temperature set point or Thermostat control is not at a cool 
enough setting. 

Adjust the temperature set point to a cooler setting 

by pressing the minus button to reduce the temperature or adjust the 
Thermostat control to a cooler setting by turning the knob clockwise. 
Turn the Fan control to Turbo Cool. 
 
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Temperature on display does not match room temperature 
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When the compressor and fan motor turn off during Power 
Saver mode, or after you turn off the unit, a lower temperature 
reading than the actual room temperature may be displayed for 
a short period of time. 

This lower temperature reading is caused by 

the temperature sensor being located close to the cold evaporator 
coil. The actual room temperature will display within a few minutes. 
 
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Water drips from cabinet into your house 
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The air conditioner is not properly leveled. 

The air conditioner 

should slope slightly downward toward the outside. Level the air 
conditioner to provide a downward slope to ensure proper drainage. 
See the Installation Instructions. 
 

NOTE:

 Do not drill a hole into the bottom of the metal base and 

condensate pan. 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for 420-0027

Page 1: ...Page 1 of 19 WINDOW AIR CONDITIONER INSTALLATION AND OPERATION 950 0071 revA 05 25 07 CATALOG NO PRODUCT CODE WAC12115RB 420 0028 CATALOG NO PRODUCT CODE WAC12230MB 420 0027 WAC12115MB 420 0029...

Page 2: ...y and the safety of others is very important We have provided many important safety messages in this manual and on your appliance Always read and follow all safety instructions This is the safety aler...

Page 3: ...evel Drill and 3 16 or smaller bit Through the wall installation In addition to the tools listed above the following tools are Needed for through the wall installations Saw 1 2 5cm or thicker lumber W...

Page 4: ...ings for your air conditioner are listed on the The wall opening measurements should be model and serial number label The model and serial number A Height 16 40 6cm plus twice the thickness of label i...

Page 5: ...rom the ones shown 1 Plug power supply cord into a grounded 3 prong outlet 2 Press RESET 3 Press TEST Listen for a click Reset button will trip and pop out 4 Press and release RESET Listen for a click...

Page 6: ...ure your air conditioner cabinet does not fall out of the channel to air conditioner cabinet opening during installation or removal The location where the power cord exits the air conditioner Should b...

Page 7: ...into guides as far as it will go 6 Repeat above steps for left hand curtain Attach Foam Adhesive Seal _______________________________________________________ Attach foam adhesive seal along the bottom...

Page 8: ...____________________________________ 1 Insert foam seal behind the top of the lower window sash and against the glass of the upper window 2 Place window lock bracket on top of lower window and against...

Page 9: ...3 Connect green ground wire to cabinet base with ground screw Position ground wire pointing straight up Put excess ground wire between coil and air conditioner cabinet 4 Remove the 2 front panel screw...

Page 10: ...eet of an appropriate electrical outlet When wall thickness exceeds 8 1 2 inches opening must be modified to allow air to enter side louvers on case see special instructions on back Do not install air...

Page 11: ...ted Do not attempt to install unit in walls thicker than 11 3 4 inches While operation of all units is similar controls very from model to model Operating Controls section shows control panel of unit...

Page 12: ...mode See Mode 4 Select fan speed See Fan Speed 5 Set temperature See Temperature ______________________________________________________ MODE ______________________________________________________ 1 P...

Page 13: ...previous settings 1 Turn off air conditioner 2 Press TIMER Timer indicator light will flash Display will show remaining hours before air conditioner will turn on 3 Press the plus or minus button to c...

Page 14: ...ir conditioner control panel will remain on To set Timer to turn on air conditioner keeping previous settings 1 Turn off air conditioner 2 Press TIMER Indicator light on air conditioner control panel...

Page 15: ...E _______________________________________________________ Turn the TEMPERATURE control to a mid setting Adjust the air conditioner s performance by turning the Temperature control clockwise for maximu...

Page 16: ...______________________________________________________ Annual Maintenance Your air conditioner needs annual maintenance to help ensure steady top performance throughout the year Call your local author...

Page 17: ...e cooling capabilities of your room air conditioner Room air conditioners are not designed to cool multiple rooms The filter is dirty or obstructed by debris Clean the filter The inside evaporator and...

Page 18: ...RCUIT BREAKER SIZE A 15 MIN CIRCUIT CAPACITY A 14 1 REFRIGERANT CHARGE lbs oz R22 1 34 21 5 1 34 21 5 1 34 21 5 SOUND dbA H M L 58 55 53 58 55 53 58 55 53 4 WAY AIR ADJUSTMENT Yes Yes Yes 2 WAY AIR SW...

Page 19: ...ion period This warranty provides free replacement of defective parts only Labor and replacement parts as a result of normal wear and tear are not covered under this warranty Additional claims are exc...

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