Samsung AC777MNADCH User Manual page 32

Troubleshooting
Problem
Cool/Warm air
does not come
out the air
conditioner or
performance is
reduced.
32 English
Check whether the set temperature is higher in
the Cool mode or lower in the Heat mode than
the current temperature. Press the Temperature
button on the remote control to change the set
temperature.
Check whether the air filter is blocked with
dirt. If the air filter is blocked, the cooling and
heating performance may decrease. Remove dirt
regularly.
Check if the outdoor unit is covered or installed
near the obstacle. Take the cover off and take
the obstacle away. When clearing the obstacle
(e.g. snow or ice), use suitable tools so as to be
careful not to damage the product nor injure
yourself during this process.
Check whether the air conditioner is running
the defrost function. When ice forms in winter
or the outdoor temperature is too low, the
air conditioner runs the defrost function
automatically. While this function is running, the
indoor fan stops and warm air does not come
out.
Check whether doors or windows are open. This
may cause poor cooling or heating performance.
Close the doors and windows.
Check whether the air conditioner is turned
on immediately after the cooling or heating
operation stops. In this case, only the fan runs to
protect the outdoor unit compressor.
Check whether the pipe length is too long. When
the pipe length exceeds the maximum pipe
length, the cooling and heating performance
may decrease.
Solution