Electrolux EDW7505HPS Service Manual - Page 84

Electrolux EFS - Dishwashing Systems Platform Electrolux Professional Electronic Dishwasher SERVICE MANUAL C.1 - Alarm codes for automatic hood type dishwashers When the alarm C9 appears, to facilitate fault-finding another parameter providing a more detailed indication has been introduced. The parameter is AL and is found in the DBG family. The possible cause of the anomaly can be found (see table below) according to the value of the parameter AL. With pot washers the cause that generated a b3 type alarm can also be found. E.g.: With an automatic hood type the alarm C 9 appears. Access the parameter AL in the DBG family. AL_8 ⇒ the top limit switch could be disconnected or interrupted. Hood Pot Washer S3: FC_DW (hood CLOSE) S5: FC_UP (hood OPEN) S1: DOOR_CLOSE AL_1 AL_2 AL_3 Appears with hood closed if the top limit switch (FC_UP) cuts in. Appears with hood closed, if: - the bottom limit switch (S3) returns to the rest position; - the top limit switch (S5) cuts in; - S3'' does not cut in. During lifting, the bottom limit switch (FC_DW) has not returned to the rest position. The limit switch must return to the rest position within a time given by the parameter t_5 : a) check that the motor works. b 3 During the initial lifting phase the bottom limit switch (S3) must return to the rest position within a time given by the parameter t_5 otherwise the alarm b 3 appears. - S3 could be stuck. - S5' could be disconnected. On installation this alarm can occur due to incorrect sequence of the phases: invert the two phases on the power supply terminal board. - Appears if during lifting S3'' does not return to the rest position within a time t 1. AL_4 Appears if the bottom limit switch (FC_DW) cuts in during lifting. b 3 DOC. NO. 5956.446.06 ©Copyright 2005 by Electrolux Professional P.84/88