HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
ERR159.01
Unit Bus fault / EHC COMM
This code typically points to
  • Wire harness between EHC and distribution board
  • EHC communication error
Next checks to confirm
  1. Inspect harness between EHC and distribution board
  2. Verify EHC communications
Escalation
User Display
Reset behavior
Clears when EHC communication restored.
Service Soon
Schedule repair
Source
Trane Hyperion *AM8/TAM8 Field Reference Data, p.22
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