!!
critical Keurig
Error Code 2
Preheat Tank TCO is Open (no Heater on preheat tank).
? What Causes This
Draining and forgetting to refill or Bad Triac.
✓ How to Fix It
Refill the preheat tank if it was drained. If the issue persists, contact your Keurig Authorized Distributor as the Triac may be faulty.
Source: page 16 of the official manual
From the manual
This error code appears in:
Keurig Coffee Maker