22
Troubleshooting
PROBLEM CAUSE REMEDY
The unit does not
work
• there is no electricity
• it is not plugged in
• the function selector is in the “•” position
• the timer pointer is on STOP
• the timer pin is in the position and it is not
programmed to operate at that moment
• wait
• plug in
• move the selector to the desired
position
• set the timer pointer to the
manual position
• adjust the timer following the
instructions given on page 18.
The unit works for
only a short time
• the thermostat has cut in
• the external unit intake is obstructed
• the fan is blocked
• turn the thermostat counter
clockwise
• remove the obstructions
• contact the Service Centre
The unit works but
does not cool the
room
• windows open
• a heat source is operating in the room (bur-
ner, light,etc.) or there are a lot of people
• thermostat adjusted too high
• air filters clogged
• the output of the unit is insufficient for the
conditions or size of the room
• close the windows
• eliminate heat sources
• lower the thermostat
• clean/replace filters
The tank full light is
on
• condensate is not being drained externally
• remove the water through the
drain tube
