!!
critical Dixell
Error Code red LED flashes continuously (serious alarm)
The system detects a serious alarm or fault condition requiring immediate attention.
? What Causes This
A critical error such as severe malfunction in controls or environmental issues.
✓ How to Fix It
Shut down the unit, assess and correct faulty conditions; contact service if unresolved.
Source: page 2 of the official manual
From the manual
This error code appears in:
Dixell XR06CX Temperature Controller