Transformer - Cleveland steamcraft 21-CET-8 Service Manual

Page 82 Model 21-CET-8 Service Manual

Transformer

Figure 5-14. Transformer
• If the readings are 230 VAC across one fuse and 0 VAC across the other fuse,
the fuse with the 230 VAC reading is blown. The fuse with 0 VAC is good.
Replace the blown fuse with a new 2 amp fuse, and proceed to step 6.
6. With the ON/OFF switch in the ON position, check the indicator light.
• If the indicator is lighted, the blown fuse was malfunctoning Perform the Final
Setup and Checkout Procedure, and check for any other
malfunctions
• If the indicator still does not light, recheck voltage across each fuse. A 230
VAC across either fuse indicates problems in other areas.
a. Deenergize the SteamCraft 3.1 at the main power switch.
b. Test the transformer for shorted primary or secondary coil.
c. Check for shorted wiring or components.
1. Check that the main power switch is in the ON position.
2. Set the voltmeter to the 250 VAC scale.
3. Refer to Figure 5-14, and check for 120 VAC across transformer primary terminals
X1-X2.
• If the meter reads 120 VAC, the transformer is good. End this procedure here.
• If the meter reads no or low voltage across terminals X1-X2, continue this
procedure with step 4.
4. Set the voltmeter to the 500 VAC scale.
5. Check power at main power switch.
• If the meter does not read 230 VAC at the main power switch:
a. Verify that the main power switch is in the ON position.
b. Check breakers or fuses in the main power switch.
• If the meter reads 230 VAC at the main power switch, sufficient power is being
supplied, and the switch box is good. Continue this procedure with step 6.
6. Check for 230 VAC across the transformer secondary terminals H1-H4.
• If the reading is 230 VAC across terminals H1-H4, replace the transformer.
• If the meter does not read 230 VAC, check for open wires and loose
connections at and between the main power switch, the terminal block, and the
transformer.
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