![FMI H18NB Owner'S Operation And Installation Manual Download Page 19](http://html.mh-extra.com/html/fmi/h18nb/h18nb_owners-operation-and-installation-manual_2312752019.webp)
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124465-01B
19
INSPECTING BURNERS
Figure 23 - Correct Pilot Flame Pattern
Figure 24 - Incorrect Pilot Flame Pattern
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or lint. Periodically inspect these holes for any
blockage and clean as necessary. Blocked air
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patterns often.
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in Figure 24
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To Turn Off Gas to Ap-
pliance
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Troubleshooting
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and have no yellow or orange color.
Pilot Burner
Thermocouple
Pilot Burner
Thermocouple
CLEANING AND MAINTENANCE
WARNING: Turn off heater
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holes prior to each heating season. Blocked
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you clean the unit every three months during
operation and have heater inspected yearly
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