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C4 - troubleshooting combustion problems, Troubleshooting combustion problems – LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual User Manual

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Service Manual NeoTherm 80 - NeoTherm 285

Troubleshooting Combustion Problems

During adjiustment,

can reach target

figures in Table?

Cannot reach

Gas inlet

pressure OK?

Yes

No

Gas supply problem.

Check with gas company.

Interior of burner

is clean?

No

Clean burner and heat exchanger.

See Section C5.

Can reach

Combustion

is OK.

Replace gas valve.

Any gas leaks

inside the unit?

No

Check all hoses,

tighten all connections.

Yes

C4

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