P00187
Carrier Transicold
Warning
Check Heater 1 Circuit
A fault was detected in the Heater 1 electrical circuit during Pretrip.
Possible causes
- Burned out heater element
- Defective fuse or heater contactor
- Loose electrical connections
Recommended actions
- Check heater resistance continuity
- Verify heat contactor operation
- Inspect high-current terminals
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