Fault Code Lookup

HVAC Sales Master
05
High Inverter Heat Sink Temperature
This code typically points to
  • Restricted cooling of inverter section
  • High ambient temperature
  • Fan-related issue
  • Inverter thermal problem

Next checks to confirm
  1. Verify condenser airflow and inverter cooling
  2. Check for obstructions or debris

Escalation
Repeated heat sink high temperature points to cooling path issue.
Reset behavior
Self-clears when temperature drops.
Urgent
Fix now
Source
iQ Drive Table 7