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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