Compartment Thermal Switch (Key Pad Timer Units Only) - Cleveland steamcraft 21-CET-8 Service Manual

Page 92 Model 21-CET-8 Service Manual

Compartment Thermal Switch (key pad timer units only)

• If the wiring, connections, and TIMED/MANUAL switch are all in good
condition, replace the timer.
7. If the SteamCraft 3.1 continues to generate steam after Timer counts down to
00:00, replace the timer.
1. Set the ON/OFF switch to the OFF position.
2. Set the TIMED/MANUAL switch to the MANUAL position.
3. Open the cooking compartment door and allow the compartment to cool. Leave
the door open while preparing the test leads and ohmmeter.
Severe electrical shock and equipment damage may resist
from uncovered compartment thermostat leads. One lead
remains hot (120 VAC) when the ON/OFF switch is ON.
4. Carefully disconnect leads (purple wires) from the compartment thermal switch. Tape the
ends of both leads to void shocks and short circuits during testing.
5. Adjust the ohmmeter for a zero reading on lowest scale.
6. Refer to Figure 5-20, and connect the ohmmeter leads across the compartment thermal
switch.
7. After about 5 minutes the compartment will be cool enough for this test close the
compartment door, and check the ohmmeter reading.
• If the meter reads 0 ohms across compartment thermal switch terminals,
replace the thermal switch.
• If the meter reads infinite ohms across compartment thermal switch terminals, continue
this procedure with step 8.
8. Set the ON/OFF switch to the ON position. Watch the meter readings as the SteamCraft 3-
11 heats up and generates steam.
• If the meter reads 0 ohms across the switch terminals after 10 minutes, the compartment
thermal switch is good. Perform steps a through c below and end the procedure here.
a. Set the ON/OFF switch to the OFF position.
b. Disconnect the ohmmeter leads from the thermal switch terminals.
c. Connect the black thermal switch leads to the thermal switch terminals.
WARNING
Printed 12/90