On/Off Switch; Relay K1 - Cleveland steamcraft 21-CET-8 Service Manual

ON/OFF Switch

Relay K1

1. Set the voltmeter to the 250 VAC scale.
2. Set the ON/OFF switch to the ON position.
• If the red indicator lights, proceed to step 3.
• If the red indicator does not light, proceed to step 4.
3. Set the ON/OFF switch to the OFF position. Refer to Figure 5-15, and check for
120 VAC across the top terminals of the ON/OFF switch (white/gray and gray
wires).
• If the meter reads 120 VAC, the ON/OFF switch is good. End this procedure
here.
• If the meter docs not read 120 VAC, replace the ON/OFF switch and end this
procedure here.
4. Refer to Figure 5-15, and check for 120 VAC across the center terminals of the
ON/OFF switch (white and black wires).
• If the meter reads 120 VAC, continue this test with step 5.
• If the meter does not read 120 VAC, the fault is not in the switch.
a. Test transformer.
b. Check the willing and connections between the transformer terminals X1-X2
and the ON/OFF switch.
5. Refer to Figure 5-15, and check for 120 VAC across the bottom terminals of the
ON/OFF switch (white/black and tan wires).
• If the meter reads 120 VAC, continue this procedure with step 6.
• If the meter does not read 120 VAC, replace the ON/OFF switch and end this
procedure here.
6. Set the ON/OFF switch to the OFF position. Refer to Figure 5-15, and check for
120 VAC across the top terminals of the ON/OFF switch (white/gray and gray
wires).
• If the meter reads 120 VAC, the indicator light is burned out. Replace
ON/OFF switch when convenient.
• If the meter does not read 120 VAC, replace the ON/OFF switch.
1. Set the voltmeter to the 250 VAC scale.
2. Set the ON/OFF switch to the ON position.
• If the fill and drain solenoids energize, relay K1 is good. End this procedure
here.
• If the fill and drain solenoids do not energize, proceed to step 3.
3. Refer to Figure 5-16, and check for 120 VAC across relay K1 coil terminals 13-
14.
• If the meter reads 120 VAC, continue this test with step 4.
Model 21-CET-8 Service Manual Page 83
Printed 12/90