Timed/Manual Switch - Cleveland steamcraft 21-CET-8 Service Manual

TIMED/MANUAL Switch

a. Test the float low level switch
b. Test the high temperature limit switch
1. Set the voltmeter to the 250 VAC scale.
2. Set the ON/OFF switch to the ON position.
3. Set the TIMED/MANUAL switch to the TIMED position.
4. Zero and clear the timer.
5. Set the TIMED/MANUAL switch to MANUAL, and check that the condenser
solenoid and heater contactor energize.
• If both the condenser solenoid and heater contactor energize, continue this
procedure with step 6.
• If both the condenser solenoid and heater contactor do not energize, continue
this procedure with step 7.
6. Set the TIMED/MANUAL switch to the TIMED position. Refer to Figure 5-19.
Check for 120 VAC from the TIMED/MANUAL switch orange wire connection
(top terminal) to the ON/OFF switch white/black wire connection.
• If the meter does not read 120 VAC between these TIMED/MANUAL and
ON/OFF switch wire connections, replace the TIMED/MANUAL switch.
• If the meter reads 120 VAC between these TIMED/MANUAL and ON/OFF
switch wire connections, the fault is not in the TIMED/MANUAL switch. Test
the timer and timer wiring.
7. Refer to Figure 5-19. Check for 120 VAC from the TIMED/MANUAL switch
orange wire connection (bottom terminal) to the ON/OFF switch white/black wire
connection (bottom terminal). For dial timer units, a light blue wire is connected
to the ON/OFF switch test point.
• If the meter reads 120 VAC between these TIMED/MANUAL and ON/OFF
switch wire connections, the fault is not in the TIMED/MANUAL switch. Check
wiring to condenser solenoid and heater contactor.
• If the meter does not read 120 VAC between these TIMED/MANUAL and
ON/OFF switch wire connections, either the TIMED/MANUAL switch or the
wiring connected to it is faulty.
a. Check the TIMED/MANUAL switch wiring for continuity, and secure
connections. Replace or repair faulty wiring and connections.
b- If the wiring and connections are good, the TIMED/MANUAL switch is
faulty. Replace the TIMED/MANUAL switch.
Model 21 -CET-8 Service Manual
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