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CONTROLLER DIAGNOSTICS PROCEED WITH THE FOLLOWING DIAGNOSTIC STEPS AFTER REMOVING AC POWER FROM THE CONTROLLER, REMOVING THE BACKUP BATTERY, AND DISCONNECT THE COMMON WIRE. LET THE CONTROLLER SET FOR APPROXIMATELY ONE MINUTE, APPLY AC POWER, CONNECT THE COMMON WIRE AND RETEST THE CONTROLLER FUNCTIONS.
STEP 1: SNIFF AND VISUAL TEST. DOES THE CONTROLLER HAVE A BURNT SMELL OR PHYSICAL SIGNS OF DAMAGE? YES- SEND IN FOR REPAIR. NO-PROCEED TO STEP 2.
STEP 2: POWER UP THE CONTROLLER. DOES THE CONTROLLER HAVE A DISPLAY AND DOES IT DISPLAY ALL THE INFORMATION CORRECTLY? YES- PROCEED TO STEP 3. (IF YOUR CUSTOMERS COMPLAINT IS THAT THE CONTROLLER DID NOT HAVE A DISPLAY, ASK HIM IF HE CHECKED HIS TRANSFORMER FOR 24VAC AND/OR DID HE CHECK THE FUSE IF THE CONTROLLER HAS ONE? ) NO- PROCEED TO STEP 2A.
STEP 2A: IS THE DISPLAY COMPLETELY BLANK? YES- SEND IN FOR REPAIR NO- PROCEED TO STEP 2B.
STEP 2B. IS THE DISPLAY DISPLAYING UNLEDGEABLE GARBAGE? YES- SEND IN FOR REPAIR NO- PROCEED TO STEP 2C.
STEP 2C. IS THE DISPLAY DISPLAYING MOST OF WHAT IT SHOULD, BUT MISSING SOME OF IT SEGMENTS OR CHARACTERS? YES- WARRANTY REPAIR OR EXCHANGE. (SEND IN TO CONTROL TECH FOR WARRANTY REPAIR IF EXCHANGED)
STEP 3. TEST THE OUTPUTS. DO ALL THE OUTPUTS TURN A SOLENOID ON AND OFF? YES- PROCEED TO STEP 4. NO- SEND IN FOR REPAIR
STEP 4. CHECK SWITCHES, KEYPAD KEYS, AND FUNCTIONS. DO ALL THE SWITCHES, KEYPAD KEYS, AND FUNCTIONS OPERATE NORMALLY? YES- PROCEED TO STEP 5. NO- PROCEED TO STEP 4A.
STEP 4A. CHECK CONTROLLER FOR WATER DAMAGE (WHITE CRUSTY BUILD UP ON PRINTED CIRCUIT BOARD AND/OR COMPONENTS, DIRT, INSECT REMAINS, SPIDER WEBS, FOREIGN OBJECTS, OR BURN MARKS. IS ANY OF THE ABOVE MENTIONED PRESENT? YES- SEND IN FOR REPAIR NO- WARRANTY REPAIR OR EXCHANGE.
STEP 5. CHECK THE PROGRAM. DOES THE PROGRAM HAVE ANY ERRORS? YES- CORRECT THE ERRORS. NO- PROCEED TO STEP 6. PROCEED TO STEP 6.
STEP 6. SIMPLE PROGRAM TEST. SET DAY, SET CORRESPONDING DAY ON, SET START TIME, SET STATION 1 WATER TIME TO 1 MINUTE, SET TIME TO ONE MINUTE PRIOR TO START TIME, PUT SOLENOID ON ZONE 1, AND LET IT AUTOSTART AND TIME THE RUN TIME FOR ACCURACY. YES- RETURN TO CUSTOMER, NO TROUBLE FOUND NO- WARRANTY REPAIR OR EXCHANGE
THIS SIMPLE TEST WILL ALLOW YOU TO FIND 99% OF THE PROBLEMS WITH A CONTROLLER. DOING THIS WILL ALSO SHOW YOUR CUSTOMER YOU CARE ABOUT HIS SERVICE NEEDS! © Control Tech USA, Inc 2005 |