A11 SERIES TROUBLE ANALYSIS CORRECTIVE SYMPTOM POSSIBLE CAUSE CHECK ACTION REMARKS 1 Shorted (1) Timer motor Replace as required See paragraphs I, II & III OPEN PRIMARY (AC) component(s) (2) Power trans in Trouble Shooting Guide FUSE(S) (3) Saturable reactor (4) Shorted lugs on fuse board See diode Trouble (5) Shorted diode Shooting Guide (bridge 6 30 units) (6) Incorrect AC line voltage 2 Shorted (1) Battery connector Repair/replace as See paragraph I & III in OPEN SECONDARY (DC) component(s) (2) Output leads required Trouble Shooting Guide FUSE(S) (3) Shorted diode (center tap rectifiers See also diode Trouble (4) Shooting Guide 3 Open AC fuse(s) (1) Check AC supply Repair/replace as See paragraph Ill in CHARGER OPERATES Open DC fuse(s) (2) Check fuses required Trouble Shooting Guide BUT WILL NOT AC contactor (3) Check fuses CHARGE BATTERY control XFMR (4) Check coil and contacts See also diode Trouble (480 VAC units) (5) Check for open PRI/SEC Shooting Guide Low DC (6) DC contact on relay output voltage (7) Open diode See paragraph III E in (8) Transistor control panel Trouble Shooting Guide (9) Open RC resistor 4 Control panel or Check control panel See paragraph IV & V in CHARGER NOT associated circuit or circuit Trouble Shooting Guide TAPERING TO REQUIRED FINISH RATE 5 (1) RV1 not set for See Adjustments CHARGER TAPERING correct finish rate BUT FINISH RATE (2) Control panel Shunt transistor not Replace with good transistor TOO HIGH conducting properly 6 Replace timer TIMER RUNS (1) BACKWARDS OR (1) Defective timer See Drawing WA1-1-1 & (2) CONTINUOUSLY (2) Timer wired incorrectly Trace timer wiring schematic for charger 7 (1) Defective timer Wiring error Replace timer CHARGER OPERATES (2) Timer wired incorrectly CORRECTLY BUT TIMER See schematic DOES NOT TIME OUT 8 (1) Improper number of cells (3) Set potentiometer(s) FLOAT/EOUALIZE (2) Front panel half scale, set float/ VOLTAGE potentiometer(s) set equalize voltages with TOO HIGH/LOW too high/low RV1/RV3 (3) RV1-RV3 set incorrectly 14