Fill Solenoid Valve - Cleveland steamcraft 21-CET-8 Service Manual

Page 84 Model 21-CET-8 Service Manual

Fill Solenoid Valve

• If the meter reads 0 VAC, the fault is not in relay K1.
a. Test the ON/OFF switch.
b. Check the tan wire from relay K1 to the TIMED/MANUAL switch.
c. Check tan and white/black wires from relay K1 to the ON/OFF switch.
4. Refer to Figure 5-16, and check for 120 VAC across relay K1 contact terminals
5-9 and 8-12
.
• If the meter reads 0 VAC, the fault is not in relay K1. Check tan wire
connections on relay K1 terminals 13,9, and 12.
• If the meter reads 120 VAC, replace relay K1 Replace only the relay cube;
leave the base installed.
1 Set the voltmeter to the 250 VAC scale.
2. Set the ON/OFF switch to the ON position and observe the red indicator light.
• If the indicator does not light, test the ON/OFF switch before doing this
procedure.
• If the indicator lights, continue this test with step 3.
3. Watch the water level in the float assembly. The water level in the float assembly
corresponds to the water level in the generator.
• If valve opens, fills the generator to the high level and stops, the valve is operating
properly. End this procedure here.
• If valve does not open to let water flow into the generator, continue this procedure with
step 4.
• If valve fills the generator but does not stop at the high level switch, continue this
procedure with step 5.
4. Check for 120 VAC across the solenoid terminals.
• If the meter reads 120 VAC, replace the fill solenoid valve.
• If the meter does not read 120 VAC, the fault is not in the fill solenoid valve.
a. Check the wiring between the fill solenoid and:
the 3-Minute Timer the float high
level switch and transformer
terminal X2.
b. Test the float high level switch.
c. Test relay K1
d. Test the transformer.
5. Disable the 3-minute timer by removing the gray wire from the 3-minute timer terminal 2.
Set the ON/OFF switch to the OFF position.
• If overfilling continues, the fill valve has failed or is stuck open. Reconnect the
gray wire to the 3-minute timer terminal 2. Replace the fill solenoid valve.
End this procedure here.
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