Panasonic CS-E12RB4UW Service Manual

Also see for CS-E12RB4UW: Operating instructions

Contents

Panasonic CS-E12RB4UW Service Manual Manual pdf 62 page image

6215.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched)Malfunction Decision Conditions During startup, error code appears when different types of indoor and outdoor units are interconnected.Malfunction Caused Wrong models interconnected. Wrong indoor unit or outdoor unit PCBs mounted. Indoor unit or outdoor unit PCBs defective. Indoor-outdoor unit signal transmission error due to wrong wiring. Indoor-outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoorand outdoor units.TroubleshootingWhen abnormality indication starts again.Is there any wiring error?YESMatched compatibility?Correct the indoor-outdoor units connection wires.Check the indoor and outdoor unit connection wires.Check the spare part numbers of the indoor and outdoor unitPCBs and compare with their Part Lists.Change for the specified indoor or outdoor unitPCB.Replace the indoor and outdoor unit PCBs.NOYESNOFor safety reason and to preventcomponent breakdown, always switchoff the power before remove andconnect the component.NOIs indoor unit and outdoor unit model numbers matched? Match the compatible model(s).YESCheck indoor and outdoor units model number.Caution