2
System Lockout (Retries or Recycles exceeded)
This code typically points to
- Loss of flame
- Gas supply failure
- Ignition not achieved after retries
Next checks to confirm
- Verify gas and ignition; public text says control recycles and locks out if ignition not achieved
Escalation
Lockout
Reset behavior
Reset requires off-on-off-on within 30 seconds at unit power source or thermostat.
Urgent
Fix now