Service manual
3-2
Refer to page 2-2 (wall hoods), or 2-8 (island
hoods), for the procedure for accessing the
slide switches.
NOTE: The island hood slide switches are
soldered to the control board and have to be
tested on the board. The wall hood slide
switches have wire connectors that can be
removed for testing.
1. Disconnect the electrical power to the
hood.
2. Disconnect the wires from the switch ter-
minals (wall hoods).
3. Set the ohmmeter to the R x 1 scale.
4. Refer to the illustration above, and touch
the ohmmeter test leads to the switch pins
that have the slider in the “contact” posi-
tion (1). The meter should indicate a closed
(0 Ω) circuit.
5. With the meter leads at the same pin
locations and the slider in another posi-
tion, the meter should indicate an open
(infinite) circuit.
NOTE: If the readings do not indicate as speci-
fied, replace the switch (wall hoods) or the
control board (island hoods).
2- & 3-POSITION SLIDE SWITCHES
Contacts (Pos 1) Contacts (Pos 1)
2-Position
3-Position
1212 3
Refer to page 2-8 (island hoods), for the proce-
dure for accessing the control board.
NOTE: The island hood speed control is sol-
dered to the control board and can be tested on
the board.
1. Disconnect the electrical power to the
hood.
2. Set the ohmmeter to the R x 10K scale.
3. Position the speed control slider all the
way to the left (see above).
4. Touch the ohmmeter test leads to the two
indicated terminal screws (with the orange
and blue wires). The meter should indi-
cate approximately 260K Ω.
5. Leave the leads touching the two terminal
screws, and slowly push the slider all the
way to the right. The meter resistance
should gradually change from 260 KΩ to
0 Ω.
NOTE: If the readings do not indicate within
20% of those specified, replace the control
board.
SPEED (VARIABLE) CONTROL
(ISLAND HOODS ONLY)
Slider
Touch Leads To These Two Screws
(With Blue & Orange Wires)
ELECTRICAL SHOCK HAZARD
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so could result in death or
electrical shock.
WARNING