Dantherm CDF 40 Service Manual

Also see for CDF 40: Service manual Quick installation Manual Service Kit Instructions

Dantherm CDF 40 Service Manual Manual pdf 23 page image

23Maintenance and care: Trouble shootingLoc The message indicates that the unit is locked. If no buttons are pressed within 5seconds the display will return to previous fail state.Follow the steps below in order to unlock the unit.Step Action Description1 UnLo (unlock function) is displayed2 tESt (test function) is displayed3 test is activated. The test will detect if the error is fixed.• cccc indicates that the error has been fixed and the unit is un-locked successfully.• faIL indicates that the error is NOT fixed yet and the unit willstill be locked.If the dehumidifier is not functioning correctly, shut it down immediately!Use this table to localize and solve a possible problem or fault:Led Audible alarm Problem Possible cause(s) SolutionOFF-230V connectedbut no functionPower outlet in wall isdisconnectedRestore the power(Electrical)- Fuse F1 on main PCBare blown Replace the fuse- Defective power sup-ply on main PCB Replace main PCB-Disconnected/loose230V connectioninside the unitCheck 230V connec-tions according towiring diagramRED3 sec. InitiatingbeepHP fault - Can’tturn on /shutsdownDefective fan Replace fanDirty filter Clean the filterDirty condenser coil Clean coilDouble beepevery 1 min.LP fault - Can’tturn on /shutsdownLeaking refrigerant Find leak and repairleak + refill refrigerantMalfunction ofthermostatic valveReplace thermostaticvalveInsufficientrefrigerant Refill refrigerantSingle short beepevery 5 min.Sensor fail -check display Defective sensor Replace sensorIf you cannot find the reason for the fault, switch off the unit immediately in order to preventfurther damage. Contact a service technician or a Dantherm representative.Unlock SequenceOKOK! NOTICEFault findingen