A. CHECK THE FUSES ON THE BACK OF THE F/B CONTROL PANEL. (FIG. 20)

B. MAKE SURE YOUR BREAKER IS TURNED ON.

C. MAKE SURE THE FLASHBACK 220 VOLT CORD IS PLUGGED IN.

OPENING THE CONTROL BOX WILL EXPOSE LIVE 220 VOLT WIRES. BE CAREFUL WORKING AROUND HIGH VOLTAGE. DO NOT TOUCH ANYTHING INSIDE THE CONTROL BOX WITH THE 220 VOLT POWER CONNECTED.

DIAGNOSIS OF SOME PROBLEMS RELATED TO BLOWERS AND THE HEAT ELEMENTS MUST BE TESTED WITH THE CONTROL BOX OPEN AND THE 220 VOLT CONNECTED. USE EXTREME CAUTION WORKING AROUND HIGH VOLTAGE.

D. CHECK TO SEE THAT BOTH WIRES GOING TO BOTH FUSES ARE CONNECTED TO THE FUSE HOLDER

E. THERE ARE 3 WHITE WIRES TWISTED TOGETHER WITH A LARGE YELLOW WIRE NUT. MAKE SURE ALL 3 WIRES ARE CONNECTED. (FIG. 18)

F. THERE IS A YELLOW WIRE CONNECTED FROM THE CONTACTOR TO THE FUSE HOLDER. MAKE SURE THIS WIRE IS CONNECTED. (FIG. 19)

G. WITH YOUR VOLTMETER SET TO READ 220V AC, PROBE THE LARGE RED AND LARGE BLACK WIRE CONNECTED TO THE CONTACTOR. (FIG. 21) IF YOU DO NOT HAVE 220V YOUR PROBLEM IS WITH THE POWER SOURCE AND NOT THE FLASHBACK.

H. IF YOU DO GET 220 VOLTS AT THE CONTACTOR AND THE BLOWERS ARE WORKING BUT THE ELEMENTS ARE NOT HEATING UP AND YOU ARE SURE YOUR FUSES ARE GOOD. CALL TUF PRODUCTS SERVICE DEPT. FOR ASSISTANCE.