Sub-Zero Wolf WWD30, Service Manual

Page 24

Component Access & Removal

WARMING DRAWER WWD30

4-7

Figure 4-16.  Power Board Removal

Power Board Removal

NOTE:

Electrical shock potential.  Refer to warnings on

page 4-2.

The power board is located to the right of the fan
assembly on the outer back panel of unit.  Four expand-
ing mandrels secure the power board to the outer back
panel.  

NOTE: 

You may want to mark the wire connectors to

ensure their proper location when reattaching to board.

To remove the power board, begin by removing the
drawer and cavity baffle from unit. Then, disconnect all
electrical leads from power board.  With fingers, support
the corners of power board and pull board off of the
expanding mandrels. 

(See Figure 4-16)

Heating Element

NOTE: 

Electrical shock potential.  Refer to warnings on

page 4-2.

The heating element is mounted with two screws to a
bracket which is then secured to the element mounting
bracket with screws.  The element mounting bracket is
then secured to the ceiling of the unit with four hex head
screws along the side flanges of the bracket, and three
hex head screws at the front of the unit cavity.  These
three hex head screws pass through a small angle
bracket and a second bracket running the width of the
unit behind the drawer seals. Only the hex head screws
need to be removed to access the elem

ent. After remov-

ing the hex head screws, push the element bracket
twards the rear of the unit. Once the front of the element
bracket clears the front frame of the unit, drop the front
of the element bracket down and pull forward.

(See Figure 4-17)

To remove the heating element, begin by removing the
drawer from unit.  Next remove the cavity baffle.

(See

Figure 4-14).

 Extract the seven hex head screws that

secure the heating element bracket to the ceiling. 

(See Figure 4-17).

Push bracket twards rear to release

front from frame.

NOTE:

Screws that need to be removed will be 1/4” hex

head.

Once you have access to the element and wiring you
can cut the electrical leads and remove the element
from the bracket.

Disconnect the remaining element wiring from the power
board and remove.

NOTE:

When installing new element, mount element to

mounting bracket first, then feed wires through grommet
and connect to power board.

NOTE:

Once bracket and element are reattached, pull

any remaining wire into power board location to avoid
interference with fan operation.

Expanding Mandrels

Figure 4-17. Heating Element Bracket Removal

(As Viewed from Inside Rear looking forward) 

Remove Hex Head Screws

Figure 4-15.  Fan Assembly Removal

Remove Screws

Electrical Leads