Carrier 40GRQ Owner's Manual

Also see for 38GRQ: Owner's manual Installation instruction

Contents

TroubleshootingPlease identify problems and possible solutions for requesting maintenanceassistance. If problem can not be resolved by following the steps described,contact your dealer or a qualified professional.Problem Possible cause SolutionIndoor unitcan’t receiveremotecontrol'ssignal orremotecontrolhas noaction.Determine if the remote controlis within the signal receivingrange.Determine if other obstaclesare preventing signal receptivity.Unit not responding to theremote controlDetermine if remote control isworking properly. Possibleproblems: low sensitivity,fuzzy display or no display.Determine if interference hasoccurred due to severe staticelectricity or voltage surge.remote controller?Remove the plug from the walloutlet. Wait three minutes.Reinsert the plug into theoutlet, then turn the unit on.Make sure the remote control iswithin the receiving range:26.2ft(8m).Eliminate possible obstacles thatcan block signal reception.Select proper angle and pointthe remote controller at the re-ceiving window on indoor unit.Replace batteries if remotecontrol performs slowly orpoorly.close to indoor unit.and then try it again.roller appears to be damaged.If yes, replace it.Air conditionerunit does notrelease air.unit is blocked?temperature is reached to settemperature?ature, indoor unit will stop bl-owing out air.Heating Mode not starting rightafter setting it in the remotecontrol.out cold air, indoor unit will bestarted after delaying for sev-eral minutes, which is a nor-mal phenomenon.-19-