Sensor - Samsung ME21F707MJT Service Manual

4. Alignment and Adjustments

4-14 Sensor

The Sensor Cooking Function uses a special gas sensor which
detects both humidity(steam) and hydrocarbons(food odors)
during the cooking process. Before conducting either of the
sensor tests below, ensure the unit is plugged into a wall outlet for
at least 5 minutes. If already plugged in, proceed. The sensor is a
plug-in device located in the vent area at the top left hand corner
of the cavity behind the grill.
To Service :
1. Disconnect power and remove Panel-outer.
2. Separate retainer from receptacle and unplug sensor.
SENSOR TEST (QUICK TEST)
1.
Auto Defrost
and
2. Observe diagnostic number in display (Numbers approximate).
15-185
(Normal-verify with "detection test" )
213 or Higher
(Sensor failed to open, sensor unplugged, wiring or smart board.)
Less then 6
(shorted sensor, or smart board).
NOTE : Only heater terminals ( H ; Black and Red leads) can be checked with
CAUTION : DO NOT ATTEMPT TO CHECK SENSOR TERMINALS (White
and Orange leads).
Popcorn
Cooking Sensor
29
Cooking Sensor
Bracket
Cooking Sensor
Cooking Sensor
Bracket