MyHarvia 2 app for Fenix - Troubleshooting
Page content
- WiFi setup problems
- Login and account problems
- In-app purchases
- App notifications
- Backward compatibility
- Control panel malfunctions
- Control panel error messages
- Fenix features
WiFi setup problems
Cannot connect to WiFi
- Make sure the WiFi network you're connecting to has a strong signal.
- Move the router closer to the control panel. The walls of the sauna room may significantly block the Wi-Fi signal.
- The network frequency must be 2.4 GHz. The Fenix control panel does not support the 5.0 GHz network frequency.
- The network name (SSID) cannot contain any special characters.
- The WiFi module requires access to port 8883 (secure MQTT), which must be opened in the firewall. Additionally, there must be access for Network Time Protocol (NTP) servers. Also check that other ports are not blocked, especially 443, 8443 and 8883.
WiFi connection interruptions
- WiFi signal is too weak. Move the router closer to the control panel if you experience connection interruptions. The walls of the sauna room may significantly block the Wi-Fi signal.
Login and account problems
MyHarvia 2 app login problems
- Cannot log in to MyHarvia 2 app.
- Password recovery is not working - I'm not receiving password reset instructions in my email.
Suggested solution
- User account has not been created or may have been deleted → Create a new user account.
In-app purchases
License upgrade problem
- Transaction was declined error message, when purchasing a Control license.
Suggested solution
- Make sure you have the latest version of the MyHarvia 2 app.
- Make sure your payment method is valid and up to date.
- Close the app and try purchasing the license again.
App notifications
Sauna is heating up slower than usual
Suggested solution
The sauna heating time is longer than expected.
- Check that the sauna doors and windows are closed.
- The glass wall may have gaps that are too large, allowing heat from the sauna to escape into the bathroom.
Failed to send control message error
Suggested solution
Temporary connection failure in cloud service. The heater cannot be started via MyHarvia app.
- Heater remote control temporarily unavailable.
- Start the heater manually from the control panel.
Power unit communication error
Critical connection failure in the system. Typically, a connection failure between the control panel and the circuit board.
- Switch the power off from the main switch. Check the data cable, sensor cables and their connections. Switch the power on. Consult an electrician if needed.
- If the error message recurs or appears occasionally, ask an electrician to check the product as soon as possible.
Fenix backward compatibility
Upgrading an existing heater
You can upgrade any current XE or XW heater to Fenix simply by replacing the control panel. More information: Buying Fenix control panel for my current heater
Incompatible product combinations
Fenix remote control functions are not compatible with the Xenio CX110 (CX110400) control unit!
Control panel malfunctions
The control panel turns off on its own
- The control panel turns itself off during heating or bathing and does not turn back on.
Suggested solution
- The internal temperature of the control panel is too high. Make sure the control panel is not installed in a location that is too hot or too high inside the sauna room.
Control panel error messages
Error messages displayed on the control panel: Control panel error messages
Fenix features
Discover the new Fenix on the Fenix 2026 page.