Troubleshoot error code “F21” in Cointra boiler

How to eliminate F21 error in boiler Cointra?

  • Error: F21
  • Description: Card parameter anomaly
  • Cause: 
  • Solution: Bad card parameter configured

More tips

If you fail to solve the boiler Cointra error, we recommend that you contact the technical or specialist service. If you have any questions about how to solve the problem, do not hesitate to contact us. Our team of experts will be happy to advise and help you carry out the repair of your Cointra boiler.

Other error codes in Cointra boiler

Errors or Error Codes for Cointra Boiler

Errors or Error Codes for Cointra Boiler

When your Cointra boiler starts showing unusual behavior or stops working altogether, it's likely trying to communicate a specific problem through an error code. These codes are an efficient way ...
Troubleshoot error code "F68" in Cointra boiler

Troubleshoot error code “F68” in Cointra boiler

How to eliminate F68 error in boiler Cointra? Error: F68Description: BCC Service Key errorCause: Solution: - BCC Service Key Connected - BCC Service Key File Load error More tips If ...
Troubleshoot error code "F67" in Cointra boiler

Troubleshoot error code “F67” in Cointra boiler

How to eliminate F67 error in boiler Cointra? Error: F67Description: BCC Service Key errorCause: Solution: - BCC Service Key Connected - BCC Service Key File Load error More tips In ...