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TRANSFER SWITCH
SECTION 3.3
TROUBLESHOOTING FLOW CHARTS
PART 3
Page 71
Problem 8 – In Automatic Mode, Generator Starts When Loss of Utility Occurs, Generator
Shuts Down When Utility Returns But There Is No Retransfer To Utility Power
OR
Generator Transfers to Standby During Excercise or in Manual Mode
BAD
BAD
REPAIR OR REPLACE AS NEEDED
REPAIR OR REPLACE AS NEEDED
REPLACE
GOOD
GOOD
GOOD
TEST 27 – CHECK
MANUAL TRANSFER
SWITCH OPERATION
TEST 31 – CHECK
WIRE 23
BAD
TEST 32 – CHECK
UTILITY CONTROL
CIRCUIT
TEST 29 – TEST
TRANSFER
RELAY
BAD
REPAIR OR REPLACE MECHANISM
TEST 34 – CHECK
FUSE F1 & F2
TEST 35 – CHECK
N1 & N2 WIRING
GOOD
GOOD
BAD
BAD
REPAIR OR REPLACE
WIRING
INSPECT/REPLACE
PRINTED CIRCUIT BOARD
FINISH
Problem 9 – Blown F1 or F2 Fuse