Thermador SMW Series Training Program page 109

Bulletin Number: SC-153
Product: Warming Drawer
TECHNICAL SERVICE BULLETIN
TO: ALL SERVICE CENTERS
RE: Warming Drawer Overheating
MODELS: ALL WD24U, WD27U, WD30X AND SMW
CONDITION:
Field reports indicate that warming drawers could overheat and stay on continuously.
PROBABLE CAUSE:
The thermostat terminals and the heater terminals are touching. Wired incorrectly, this
causes a short circuit. The heating element will stay on continuously.
RECOMMENDATION:
Warming Drawers wiring corrected if the customer complains of overheating or for any
reason. Please follow the illustrations below for proper wiring of the warming drawer
thermostat.
Insulated spade clip (From
Element) Placed on terminal
closest to rear bracket (far-
thest from shaft)
Piggyback Spade/Terminal
(From On/Off Switch) Placed
on terminal closest to shaft
(Piggyback facing shaft)
5551 McFadden Avenue • Huntington Beach, California 92649 • 800/735-4328
ECO Number : 91613
Date: May, 2001
Un-insulated terminal (From
Pilot Light) Placed on piggy-
back terminal