Southbend EZ-3, EZ-5 manual Unit Not Heating Up, on Light Not Lit

TROUBLESHOOTING MODEL EZ-3 & EZ-5 COUNTERTOP STEAMERS

Unit Not Heating Up, "ON" Light Not Lit

Unit not heating up, "ON" light not lit.

Check that circuit breaker is ON and that proper voltage is

available at main fuse block.

		DISCONNECT POWER AT CIRCUIT BREAKER.
		Remove control panel without disconnecting plug.
			Turn lever to "ON" position.
				Reconnect power.
	Check voltage between A and B on control panel fuse
	bl k		(see Figure 4 on page 21).
	No			Does voltage				Yes
				meet specifications?
DISCONNECT POWER AT CIRCUIT BREAKER.					Check voltage on side C and D on control panel
						fuse block (see Fig. 4 on page 21).
Check resistance between contactor terminals
(see Figure 5 on page 22).								Does voltage
					Yes				No
							meet specifications?

No	Is measured resistance	Yes
	consistent with the table in
	Figure 5 (see page 22)?		Check voltage across
			terminals 1 and 6 of
			terminal block
			(see Fig. 4 on page 21).

Check for short circuit in power switch (see Fig. 7 on page 24), contactor coil and MOV (see Fig. 8 on page 25), idle element (see Fig. 9 on page 26),

TROUBLESHOOTING

Replace elements and

main fuses

(see Fig. 6 on page 23).

Check main fuses and

replace as needed

(see Fig. 6 on page 23).

No

Test power switch or adjust so that it is actuated properly by cam on valve shaft. Replace switch as necessary (see Fig. 7 on page 24).

Does voltage meet specifications?

and buzzer (see Fig. 10 on page 27). Replace as necessary.

Replace control panel

fuses.

Yes

Replace "ON" light; continue on next page.

PAGE 16 OPERATOR’S MANUAL 1178387 REV 2