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MODEL C24EA - HEATING ELEMENTS AND CONTACTORS
F35453 (July 2008) Page 16 of 68
Contactors
1. Turn off machine to drain steam generator.
Allow steamer to complete drain cycle.
2. Remove FRONT BASE PANEL as outlined
under COVERS AND PANELS.
3. Remove top screw securing cover to high
voltage box.
4. Note electrical connections for the contactor
being replaced then disconnect lead wires from
contactor terminals and coil.
5. Remove screws securing contactor to high
voltage control box then remove contactor.
6. Reassemble parts removed in reverse order.
7. Check steamer for proper operation.
HEATING ELEMENTS
DIAGNOSTIC CHECK
1. Check voltage across heating element lead
wires at the limiting and regulating contactor
terminals and verify against data plate.
A. If voltage is correct, check current draw
(step 2).
B. If voltage is not correct, check the
following:
1) Voltage supply to steamer.
2) Fuses or breaker blown.
3) Power to contactor coils.
4) Contactors not pulling in (mechanical
problem).
2. Check current draw (amps) through heating
element lead wires using an amp clamp meter.
NOTE: Checking current draw is the preferred
method over a resistance check when an amp clamp
meter is available.
A. If current is correct, then heating element is
ok. See table for proper values.
B. If current is not correct, turn power switch
off and disconnect power to machine.
1) Install a replacement heating element.