Bosch Appliances 2400E LP, 2400E NG manual Lack of gas pressure. Inadequate gas pressure will

Troubleshooting

2.Improper venting. Venting that is unsealed, the wrong material, too big in diameter or too long in run will result in unstable burner flames and noise. Ensure venting is correct and in accordance with specifications in chapter 3.6.

3.Lack of adequate combustion air. Drawing combustion air from a room area of inadequate size or improper piping of combustion air from the outside will result in unstable burner flames and noise. Ensure adequate combustion air is provided to the unit in accordance with specifications in Section 3.5 Combustion Air Requirements.

4.Cross contamination. Ensure that intake and exhaust terminations maintain required clearances stated in the manual. Cross contamination between intake and exhaust may cause unstable burner flames and noise.

5.Lack of gas pressure. Inadequate gas pressure will

cause the fuel-to-air mixture (CO2) to be out of adjustment. This will result in unstable burner flames and noise. Ensure gas pressure is in accordance with specifications in Section 3.8 Measuring Gas Pressure. A gas pressure reading is needed to proceed further. Contact your original installer or a local certified gas technician to obtain this reading.

6.Verify proper CO2 readings per chapter 5.4. CO2 adjustments must be done by a certified gas technician with a calibrated combustion gas analyzer.