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Page 128
SteamCraft 10 Service Manual, Chapter 6
Models 24-CGA-10 and 24-CEA-10
• If the meter does not read 115/120 VAC, replace the ON/OFF switch
and end this procedure here.
Set the ON/OFF switch to the OFF position. Refer to Figure 6-7, and
check for 115/120 VAC across the top terminals of the ON/OFF switch
(white/gray and gray wires on model 24-CGA-10) or (white/blue and
gray wires on model 24-CEA-10).
• If the meter reads 115/120 VAC, the indicator light is burned out.
Replace ON/OFF switch when convenient.
If the meter does not read 115/120 VAC, replace the ON/OFF switch.
Printed 3/93
Cleveland
Figure 6-15. ON/OFF Switch - 24-CGA-10
Electroni
c
CT:6 Float Assembly
Before testing the float assembly, inspect the cylinder for sediment. Sediment
in the float assembly cylinder often appears as white sludge. As sediment
builds up in the cylinder, the floats cease to slide up and down smoothly on
the shaft. The float assembly does not properly respond to water level
changes.
If there is heavy sediment buildup in the float cylinder:
a. Refer to Figures 7-10A and 7-10B. Disassemble and clean the float
switch assembly, the float cylinder, and the spray nozzle. If the com-
ponents cannot be cleaned, replace them with new pans. Reassemble the
cleaned components.
b. If the float cylinder required cleaning, test the rinse solenoid valve for
proper operation according to the procedure outlined in Initial Test
Procedure IT-2 - IT-4.
When the float assembly is free of sediment, perform these test procedures.
1. Set the voltmeter to the 250 VAC scale.
2. Set the TIMED/MANUAL switch to the MANUAL position.
3. Set the ON/OFF switch to the OFF position. Wait for the 3-minute
blowdown cycle to finish, and the generator and float assembly to drain
completely.
4. Connect the voltmeter across the float low level switch.
• For model 24-CEA-10, refer to
Figure 6-16
and connect the voltmeter
leads to the black wire connections at the high temperature limit switch
and the pre-heat thermostat.
• For model 24-CGA-10, refer to Figure 6-17 and connect the voltmeter
leads to the L/BLU wire connections at the gas control transformer and
Rl terminal 9.