Nipon Coolair MB18 GA Installation And User Manual
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Contents
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8 Troubleshooting and Maintenance8.1 Troubleshootingfollowing points before repair:Table 10Failure Possible ReasonsThe unit cannot be started.. The power supply is not connected.. Electrical leakage of air-conditioning unit causes tripping of the leakageswitch.. The operating keys are locked.. The control loop has failure.The unit operates for awhile and then stops.. There is obstacle in front of the condenser.. The control loop is abnormal.. Cooling operation is selected when the outdoor ambient temperature isabove 48°C.Poor cooling effect... There is heat source or too many people inside the room.. The door or window is open.. There is obstacle at the air intake or outlet.. The set temperature is too high.. There is refrigerant leakage.. The performance of room temperature sensor becomes worsePoor heating effect... The set room temperature is too low.. .egakaeltnaregirfersierehT. The outdoor ambient temperature is lower than -5°C.. Control loop is abnormal.Note: After carrying out the check of the above items and taking relevant measures to solve theproblems but the air-conditioning unit still does not function well, please stop the operation of theunit immediately and contact the local service agency designated. Only ask professionalserviceman to check and repair the unit.Cassete - Multi-Split |
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