Panasonic CS-E7LKEW Service Manual

Also see for CS-E12LKEW: Service manual Operating instructions

Contents

Panasonic CS-E7LKEW Service Manual Manual pdf 75 page image

75f. Power failure• During e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumesimmediately.• During combination operation, if power failure occurs, after power resumes, combination operation resume immediately.g. Error Detection ControlWhen e-ion indicator blink, it indicates error listed below:i. e-ion Air Purifying system main connector to PCB is open:Judgement Method• During e-ion operation (include during Patrol operation), e-ion Air Purifying system main connector to PCB is opened.Troubleshooting Methods• Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.ii. Abnormal DischargeJudgement Method• During e-ion operation, when feedback voltage is -Lo (at microcontroller) is detected, it is judged abnormal discharge andstops power supplies to the e-ion Air Purifying system.• The unit retries after 30 minutes and repeat for 24 times. (not applicable for e-ion Check Mode)Troubleshooting Method• Press “PATROL/e-ion” button or “OFF/ON” button to stop the operation and check the e-ion Air Purifying system mainconnector to PCB.• After that, press “e-ion” button again to confirm the e-ion indicator not blinking.• The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.Error Reset Method• Press “OFF/ON” button to OFF the operation.• Press AUTO OFF/ON button at indoor unit to OFF the operation.• OFF Timer activates.• Power supply reset.iii. e-ion breakdownJudgement Method• When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, due to PCB or filter’s high voltage powersupply damage.• Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.Troubleshooting Method• Press “PATROL/e-ion” button or “OFF/ON” button to stop the operation.• Change main circuit board or filter’s high voltage power supply.• When lo-feedback voltage supplied to e-ion Air Purifying system during e-ion operation, e-ion indicator and Timer indicatorstop blinking.12.13. Mild Dry Cooling Operation• This operation helps to prevent decreases in room humidity while maintaining the setting temperature.• During unit running at Cooling operation mode, if “Mild Dry Cooling” button is pressed, Mild Dry Cooling operation starts and MildDry Cooling indicators turns ON at remote control display.• Mild dry cooling operation is unavailable when the unit is operating Auto mode, Soft Dry mode, Patrol individual operation ore-ion individual operation.• Mild dry cooling operation is cancelled when the unit turned OFF, Mild Dry Cooling button is pressed again or when the operationmode changed from Cooling to other mode.• Eco Patrol, Powerful, Quiet and Mild Dry Cooling mode cannot function at the same time, the unit will follows the operationaccording to the last signal received.• During this operation, the compressor frequency changes according to operating condition to prevent room humidity decreasesand when AUTO AIR SWING is set, the vertical airflow direction fixed at lower limit position.