Eaton PV240 User Manual

Eaton Corporation Page 59 Ver 1.19. Maintenance9.1 External cooling fan replacementFor PV240 and PV250 models, there is no cooling fan designed for theexternal housing, but an internal fan designed within PV inverter for thethermal management. Therefore, “FAN Lock” is the only failures messagethat user will retrieve from the LCD if the operation of internal cooling fan hasfailed. If this situation happens, please contact the Eaton service personnelfor further instructions.For PV260 and PV270 models, there is an external cooling fan and theinternal cooling fan designed within PV inverter for the thermal management.The external fan is located on the top-front side of PV Inverter as shown infigure 9.1.2. When the cooling fan is not working properly, user will be ableretrieved three different kinds of failure messages from the LCD. “FAN Lock”is the first failure message that user can retrieved from the LCD when bothexternal and internal cooling fan are not working properly. “FAN1 Lock” isthe second kind of failure message the user can be retrieved from the LCDwhen the internal cooling fan is not worked properly. “FAN2 Lock” is the lastkind of failure message the user can be retrieved from then LCD when theexternal cooling fan is not worked properly.If there is “FAN2 Lock” on the PV260 and PV270 model, please check ifthere is any obstacle which (stopped) blocked the external fan. When noobstacle can be found, user can follow the below procedures to change theexternal cooling fan to see if cooling fan problem can be fixed by changing toa new cooling fan. If the “FAN Lock” or “FAN1 Lock” happened on thePV260 and PV270 model, please contact the Eaton service personnel forfurther instructions since the internal cooling fan is not working properly.IMPORTANTIf the error code on the LCD display reads “FAN1 LOCK” with aPV260/PV270 model or “FAN LOCK” with a PV240/PV250model, then this means the interior cooling fan located inside themain housing of PV Inverter is defective and will needs to bereplaced. Please contact system installer or qualified servicepersonnel to make change the interior cooling fan.