Toyotomi CCT 50HINVi Service Manual page 44

2.4 Solving steps for typical malfunction
2.4.1 For the indoor unit
2.4.1.1 Open or short circuit of temperature sensor
Check the connections
between temperature
sensor and PCB. Are
the connections good?
Yes
Check the resistance value
of the sensor via Appendix 1
Is it normal?
No
Replace the sensor
Electrical Control System
No Correct the connections.
Yes Replace indoor or outdoor PCB.
Troubleshooting
107