Fedders b6y12f2a Guida Al Funzionamento

SERVICE

TROUBLESHOOTING

• Wall plug disconnected.

✔ Push plug firmly into wall outlet.

• House fuse blown or circuit breaker tripped.

✔ Replace fuse with time delay type 

or reset circuit breaker.

• Power switch in OFF position.

✔ Turn power switch to ON position.

• Unit accidentally turned off by moving the 

✔ Wait approximately 3 minutes.

thermostat to a higher temperature and then

Listen for the compressor to start. 

immediately turned back to a colder position.

• Unit turned off and then on too quickly.

✔ If air conditioner is turned off, 

wait 3 minutes before restarting.

• Thermostat set too low for cooling.

✔ Adjust thermostat to higher setting for cooling.

• Selector in FAN position.

✔ Set selector to COOL position.

• Thermostat set too warm.

✔ Set thermostat to colder temperature.

• Room temperature below 70°F.

✔ Cooling may not occur until room 

temperature rises above 70°F.

• Outdoor temperature below 70°F.

✔ To defrost the coil, set selector to FAN position.

Then, set thermostat to warmer position.

• Dirty air filter — air restricted.

✔ Clean filter. See “Cleaning the Air Filter” section.

To defrost, set selector to FAN.

• Thermostat set too cold for nighttime cooling.

✔ To defrost the coil, set selector to FAN position.

Then, set thermostat to a normal position.

• Dirty air filter — air restricted.

✔ Clean air filter. 

Refer to “Cleaning Air Filter” section.

• Thermostat set too warm.

✔ Set thermostat to colder setting.

• Fan selector set on LOW.

✔ Set fan speed selector to HIGH 

for maximum cooling.

• Air movement sound.

✔ The sound of rushing air is normal. If too loud,

turn selector to lower fan setting.

• Sound of fan hitting water-moisture 

✔ This is normal when humidity is high. 

removal system.

Close doors, windows and registers.

• Window vibration — poor installation.

✔ Refer to installation instructions — 

check with installer.

• Improper installation.

✔ Tilt air conditioner slightly to the outside to  

allow water drainage. Refer to installation 
instructions — check with installer.

• Unit removing large quantity of moisture

✔ This is normal during excessively humid days. 

from humid room.

To save time and expense, check the following before calling an authorized service center. 

First, make the recommended checks. If it appears that

service or parts are still required, see your room air conditioner warranty “How to Obtain Warranty Service or Parts”.

For room air conditioners purchased for use outside North America, the

manufacturer does not extend any warranty either expressed or implied. Consult your local dealer for any warranty terms
extended by the importer in your country.

Visit www.fedders.com for obtaining service parts beyond your warranty period.