No flow
Danfoss · VLT HVAC-FC 102 Frequency Converter
What does 92 mean?
A no-flow condition has been detected in the system, and parameter 22-23 (No-Flow Function) is set to trigger an alarm. This indicates a critical deviation in the process, such as a pump running dry or a blocked pipe. Continued operation in a no-flow state can damage pumps or other system components.
Complete Troubleshooting Guide
- 1
Identify and rectify the cause of the no-flow condition within the system, such as checking for closed valves, blockages, pump failures, or sensor malfunctions.
- 2
Ensure that parameter 22-23 (No-Flow Function) is correctly configured for the desired alarm behavior, whether it's an alarm or warning.
- 3
Once the no-flow condition is resolved and the system is ready for operation, reset the frequency converter.