HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
84-58
VFD heatsink overtemp malfunction
This code typically points to
  • Persistent heatsink overtemperature condition
  • Severe airflow restriction
  • Failed VFD thermal management
Next checks to confirm
  1. Clear heatsink obstruction
  2. Verify airflow path completely
  3. Replace VFD if malfunction persists
Escalation
Extended lockout condition.
Reset behavior
Lockout condition until cleared manually or by extended cooldown.
Urgent
Fix now
Need deeper detail?
Retrieve the subcode for this platform:
  1. From the main screen, touch Menu
  2. Touch and hold the Service icon for at least 10 seconds until it turns green
  3. Open Service Information
  4. Use View Diagnostics for the most recent fault's top three likely root causes
  5. Use Last 10 System Events for timestamped recent events
  6. Use Run/Fault History for resettable fault counters, cycle counters, and run times
Source
186CNV/284ANV service manual
Look up another codeChange brand