Generac Power Systems 9 kW NG, 7 kW NG Troubleshooting flow charts, Problem 9 Blown F1 or F2 Fuse

Transfer switch

Part 3

Section 3.3

Troubleshooting flow charts

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

TEST 27 – CHECK

MANUAL TRANSFER SWITCH OPERATION

GOOD

TEST 31 – CHECK

WIRE 23

BAD REPAIR OR REPLACE MECHANISM

BAD REPAIR OR REPLACE AS NEEDED

GOOD

TEST 29 – TEST

TRANSFER

RELAY

GOOD

TEST 32 – CHECK UTILITY CONTROL CIRCUIT

BAD REPLACE

BAD REPAIR OR REPLACE AS NEEDED

Problem 9 – Blown F1 or F2 Fuse

TEST 34 – CHECK

FUSE F1 & F2

GOOD

FINISH

		TEST 35 – CHECK			INSPECT/REPLACE
BAD				GOOD
		N1 & N2 WIRING			PRINTED CIRCUIT BOARD
			BAD
	REPAIR OR REPLACE
			WIRING

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