Troubleshooting tips
Won’t cool?
If your air conditioner operates, but won’t cool; check to see if the controls are properly set. Check the filter and clean thoroughly if needed. Check to see if the vent door is closed. Check to see if the chassis seal gasket is installed (refer to installation instructions).
Won’t run?
Make sure the power cord is plugged in all the way. Check for a bad fuse, tripped breaker or tripped LCDI Device. Refer to page 3 for LCDI reset instructions and to confirm proper fuse size.
This is a warm weather appliance
Your air conditioner is designed to cool in warm weather when the outside temperature is above 60°F (16°C) and below 115°F (46°C), so it won’t cool a room if it is already cool outside. If you want to cool a room in the winter, set the unit to Fan Only and set the Fresh Air/Exhaust control to Fresh Air. This will bring in a supply of outside air.
Condensation is normal
Air conditioners actually pump heat and humidity from your room to the outside air. Humidity becomes water, and your air conditioner will use most of the water to keep the outside coil cool. If there is excessive humidity, there may be excess water that will drip outside. This is normal operation.
Frosting
This usually occurs because of insufficient airflow across the coils, a dirty filter, cool, damp weather, or all of these. Set unit to Fan Only and the frost will disappear. Setting the thermostat a little warmer will probably prevent the frosting from recurring.
Noises
All air conditioners make some noise. Friedrich QuietMasters® operate as quietly as possible. An air con- ditioner mounted in a wall is quieter than one mounted in a window. If mounted in a window, the window mount kit provided with QuietMaster® models will reduce operating sound levels, when properly installed. It is important to en- sure that the chassis seal gasket is properly installed (refer to installation instructions).
Cleaning your air conditioner
The decorative front and the cabinet can be cleaned with warm water and a mild detergent. The indoor coil can be vacuumed with a dusting attachment if it appears to be dirty. The outdoor coil can be gently sprayed with a hose if you can get to it. If not, you might call your dealer for a more thorough cleaning when needed. The air filter should be inspected weekly and cleaned if needed by vacuuming with a dust attachment or by cleaning in the sink using warm water and a mild dishwashing detergent. Dry thoroughly before reinstalling the filter.
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