00103
Carrier Transicold
Warning
Check 2HTCON1 Relay Coil
Failure in the 2HTCON1 relay coil (Compartment 2 Heat 1).
Possible causes
- Damaged control coil
- Open circuit in inter-compartment harness
- Expansion board failure
Recommended actions
- Test relay in component menu
- Verify wiring to remote evaporator 2
- Secure relay ground connections
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