| Option/ Additional Information |
Possible cause | Remedy |
|---|---|---|
| Combustion air intake and exhaust lines kinked, clogged or incorrectly routed | Correctly route combustion air intake or exhaust line and check for unobstructed passage | |
| Insufficient amount of combustion air | Set CO2-value to permissible value in accordance with the workshop manual | |
| Heater is not securely mounted in support and draws in exhaust gas. Exhaust gas gasket not fitted. |
Loosen 2 M6x20 screws at the mounting plate (side panel) and position heater correctly. Remove heater, install new exhaust gas gasket and reinstall heater |
|
| Burner insert incorrectly mounted, or burner matting worn | Inspect burner insert, replace if necessary and install new one in accordance with directions contained in workshop manual | |
| Incorrect amount of fuel delivered by supply unit | Replace supply unit in accordance with directions given in the workshop manual |