Heater Error: How to Check and Clear the Error Code
When the heater has an error, the ring around the dial flashes red and the display shows "H1: Service" or "Service". Follow the steps below to check the error code and clear it. The heater may not restart until the error is cleared.

Basic controls

| No. | Control | What it does |
|---|---|---|
| ① | Turn the dial left or right | Select |
| ② | Press the center of the dial | Confirm |
| ③ | Press the return key (top right) | Go back |
| ③ | Press and hold the return key | Open the Workshop menu (step 3) |