Troubleshooting Chart 11 - UTICA BOILERS UCS-380 Installation, Operation & Maintenance Manual

Condensing gas fired floor or wall mounted boiler
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13 - TROUBLE SHOOTING
Troubleshooting Chart 2
E16 - False Flame Signal
Turn Off All Heat Calls
Inspect Burner through sight
glass. Is flame present?
NO
YES
Initiate heat call. Check CO
Replace Gas
2
at high fire is 9.1-9.5%
Valve
Out of Range
In Range
Adjust Gas Mixture See
Section 9. Re-check.
E-16 still present?
Replace Flame
Sense
YES
NO
Condition
Corrected
Replace Flame
Sense
78
P/N 240011662, Rev. D [06/30/2017]

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