HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
82-56
Low line voltage lockout
This code typically points to
  • Input line voltage sag below threshold
  • Poor power quality
  • Utility-side low voltage
Next checks to confirm
  1. Measure input voltage with power quality analyzer
  2. Verify supply and utility quality
Escalation
2-hour equipment lockout.
Reset behavior
2-hour lockout. Clears after lockout if underlying issue resolved.
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
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