Fault Code Lookup

HVAC Sales Master
T916_O
Inverter Fault - Discharge Line Temp
This code typically points to
  • Excessive discharge-line temperature

Next checks to confirm
  1. Inspect operating conditions driving high discharge temp
  2. Inverter monitors discharge-line thermistor and reduces RPM at 235°F until temp drops to 200°F

Escalation
3-strikes to permanent lockout
Reset behavior
Lockout exit after root cause correction.
Urgent
Fix now
Source
Rheem RP18AZ Installation Instructions Table 15 and high-discharge-temperature section