Panasonic CZ-256ESMC2 Operation Manual

Also see for CZ-256ESMC2: Operation manual Operation manual

Contents

9113 TroubleshootingBefore requesting service, check the following items.Do not attempt to service the Intelligent Controller yourself. Doing so can be dangerous.Symptom CauseNothing appears on the screen when thecomputer is turned on.• Is the power cord connected?• Is the power switch set to on?Timer operation does not work. • Is timer operation set to the target unit? Operation of a selectedtimer does not start if the setting is not set the target unit.• Does the setting match the current date and time?If thedate and time do not match, operation can start at anunexpected time. (See “6.3.2 Setting the date, cut-off date,and distribution ratio calculation method”)The distribution ratio is always 100%. • Check the group settings and tenant settings.• Distribution rate calculations always result in 100% if thereis only one tenant registered in a distribution group, or ifthere is only one indoor unit in a tenant.The power goes off at odd times. • The screen may be blank because of the power-saving autooff function. The Intelligent Controller is still powered on.Touch the screen to restore the display.• Regardless of the selected auto off time, the screen may beturned off when the Intelligent Controller boots.There is an alarm message in thenotification bar at the bottom of the screenthat will not go away.• The message displays the unit where the alarm occurred,and the alarm number. Inform your dealer or serviceprovider about the content of the message.Backing up to a PC Card does not work. • Data can be backed up only to the special PC Cards (option)for the Intelligent Controller. Backup to other PC Card typesis not possible.It takes a long time after an operation forthe screen to be updated.• A certain amount of time may be required depending on thestate of communications with the connected air conditioners.Please wait until all of the information is received.LCD display • In rare cases there may be a dot on the screen whichis always on or always off. This is not a malfunction.Due to the nature of LCD displays, there may be somecolor bleeding in certain areas because of variations intemperature and so on.This is normal and not a malfunction.Nothing happens when an operation buttonis pressed.• Over extended use, the touch positions and displaypositions on the touch panel may get out of alignment.( “6.8.9.7. Calibrating touch panels”)When local remote control operation isprohibited on the Intelligent Controller,the Intelligent Controller is not able tostart/stop operation of a malfunctioning airconditioner.• Emergency operations until our service person arrives:Power off the Intelligent Controller and externally installedcommunication adaptor; re-power on the indoor unit. Operationwith the local remote control will be possible. However, thiscannot be done in a remote control free system.A power outage occurred. When itended, the equipment did not come onautomatically according to program timersettings.• The Intelligent Controller does not power on equipmentautomatically by program timer after a power outage. Thesetting for the next programmed time will be executed whenthe time arrives.The Intelligent Controller cannot detect asingle indoor unit. Or it cannot find all ofthem.• Try using the “Check configuration” button in the “Othersettings” screen ( Main Sub66 99 ).