Toshiba MMU-P0121H Service Manual page 74

Check code
[93]
Indoor TC1 sensor alarm
Check connection of TC1 sensor (TC1 sensor : Indoor main P.C. board (MCC-1361) : CN20), disconnection of
circuit, and characteristics of sensor resistance value. When the sensor is normal, replace indoor main P.C.
board (MCC-1361)
Check code
[94]
Indoor TC2 sensor alarm
Check connection of TC2 sensor (TC2 sensor : Indoor main P.C. board (MCC-1361) : CN05), disconnection of
circuit, and characteristics of sensor resistance value. When the sensor is normal, replace indoor main P.C.
board (MCC-1361)
Operation cause
TC1 sensor error
<For 4-way Air Discharge Cassette type>
Operation cause
TC2 sensor error
3-71