Troubleshooting - Carrier 40GRQ Owner's Manual

Troubleshooting

Please identify problems and possible solutions for requesting maintenance
assistance. If problem can not be resolved by following the steps described,
contact your dealer or a qualified professional.
Problem
Determine if interference has
occurred due to severe static
electricity or voltage surge.
Determine if the remote control
is within the signal receiving
range.
Determine if other obstacles
Indoor unit
are preventing signal receptivity.
can't receive
remote
Unit not responding to the
control's
remote control
signal or
remote
Determine if remote control is
control
working properly. Possible
has no
problems: low sensitivity,
action.
fuzzy display or no display.
remote controller?
unit is blocked?
temperature is reached to set
Air conditioner
temperature?
unit does not
release air.
Heating Mode not starting right
after setting it in the remote
control.
Possible cause
-19-
Solution
Remove the plug from the wall
outlet. Wait three minutes.
Reinsert the plug into the
outlet, then turn the unit on.
Make sure the remote control is
within the receiving range:
26.2ft(8m).
Eliminate possible obstacles that
can block signal reception.
Select proper angle and point
the remote controller at the re-
ceiving window on indoor unit.
Replace batteries if remote
control performs slowly or
poorly.
roller appears to be damaged.
If yes, replace it.
close to indoor unit.
and then try it again.
ature, indoor unit will stop bl-
owing out air.
out cold air, indoor unit will be
started after delaying for sev-
eral minutes, which is a nor-
mal phenomenon.