Mitsubishi Electric JT-SB216JSH2-W-NE Handbook page 24

5 Remove the sensor holder.
Assembly precaution
Take care not to pinch the lead wires.
6 Unhook the claw of the sensor holder (one location, indicated by
and remove the sensor circuit board (JT-30S3R).
When reassembling
Reassemble the unit in the reverse order of disassembly.
After reassembly, always make a test run to be sure that the unit oper-
ates properly.
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Sensor holder
Sensor holder
Sensor circuit board (JT-30S3R)