Thank you for creating one and only video on the whole internet for troubleshooting this heater! :) Thanks to the explanation on voltages for temperature sensor and etc. I managed to conclude that it's the temperature sensor that was broken (it would immediately go into overheat shut-down mode). Issue is fixed, cost 30eur instead of buying a new heater, or other larger parts :D
I had the same problem. The power board WX610 doesn't generate 5V anymore. That happens to me after 4 years. The board cost 300€ - 400€ what is expensive. In addition is the board is not longer available by Harvia. But you can buy for this price a new sauna heater including control unit. That's what I did.
Thank you for creating one and only video on the whole internet for troubleshooting this heater! :) Thanks to the explanation on voltages for temperature sensor and etc. I managed to conclude that it's the temperature sensor that was broken (it would immediately go into overheat shut-down mode). Issue is fixed, cost 30eur instead of buying a new heater, or other larger parts :D
I had the same problem. The power board WX610 doesn't generate 5V anymore. That happens to me after 4 years. The board cost 300€ - 400€ what is expensive. In addition is the board is not longer available by Harvia. But you can buy for this price a new sauna heater including control unit. That's what I did.
Thanks Mikko! very helpful