Daikin FTXR-T Series Service Manual

Also see for FTXR-T Series: Engineering data

Contents

Daikin FTXR-T Series Service Manual Manual pdf 88 page image

Troubleshooting SiUS041829E84 Part 6 Service Diagnosis4.10 Outdoor Unit PCB AbnormalityError Code E1Method of ErrorDetection The system checks if the microprocessor is working in order. The system checks if the zero-cross signal comes in properly.Error DecisionConditions The microprocessor program runs out of control. The zero-cross signal is not detected.SupposedCauses Defective outdoor unit PCB Noise Momentary drop of voltage Momentary power failureTroubleshootingCautionBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.Continuously ON or OFFBlinkYES(R21201)NOReplace the outdoor unitPCB (main PCB).Ground the system.Zero-cross signalabnormality.Replace the outdoor unitPCB (main PCB).Check if the outdoor unit isgrounded.Is LED A blinking?Grounded?Turn on the power again. ∗ Before you check the LED A,cancel the standby electricitysaving function by starting fanoperation with the remotecontroller.∗ Wait at least for 7 sec. afterturning on the power.