Page 23
Using a # 25 torx screwdriver loosen the screw terminals on the power board and remove the wires
to the induction coil. (Fig. 23)
The terminals are forked and can be removed without completely removing the screw.
With the induction coil wires removed from the screw terminals the induction coil temperature sensor
(RTD) connector can be accessed and unplugged from the induction power board. (Fig. 23B)
The RTD connector plug is released by pressing inward on the tab. (Fig. 23C)
Fig. 23
Fig.23B
Push In
On Tab
Fig. 23C
Removing Induction Coils
Fig. 23D shows a complete induction coil assembly.
To test the coil circuit use an ohm meter to check
for continuity between the two forked terminal
connectors. The coil should have less than 1 ohm of
resistance.
Each induction coil assembly has a temperature
sensor (RTD) as part of the assembly. The RTD
should measure approximately 1000 ohms of
resistance at room temperature. The RTD monitors
the surface temperature of the cooking zone and
relays this information to the controls. If the surface
Fig. 23D
Temperature
Sensor (RTD)
Temperature
Sensor Harness
plug
temperature is above 65°C (149°F) the hot surface indicator “H” will be displayed in the cook zone
control display when the cook zone is not in use. If the control detects surface temperatures above
240°C (464°F) it will turn the cooktop off. This is intended to prevent damage to the cooktop and
cooking utensils in the event of an empty pan left on the cooktop or if a pan should boil dry. Whenever
this shutdown occurs the cook zone control will display “H” . After the surface cools down suf
fi
ciently
the cooktop can be reactivated in the normal manner.
Front Edge of Cooktop
Induction Coil
Connection Diagram
It should be noted that the individual wires from
each induction coil have no polarity and can be
connected to either of the screw posts on the
power board for that speci
fi
c cook zone.
Also notice the difference in the wiring con
fi
guration
of the left side and right side induction coils. On
the left side the rear coil connects to the rear set of
terminals on the power board but on the right side
the rear coil connects to the
front
set of terminals.
If the coils are not connected to the proper terminal
set the cook zones for that side will not operate and
the control will display the
fl
ashing “F” when the
zone is turned on.
COMPONENT ACCESS AND SERVICE PROCEDURES
