Troubleshooting instructions – L.B. White Pilot User Manual
Page 36
Troubleshooting Pilot Flame
Troubleshooting
Instructions
August 1999
5.1-2
2
ATTENTION
■
These illustrations are intended to provide a means to
assist you in troubleshooting a pilot problem. They
must be used in conjunction with proper cleaning,
checking for proper gas pressures, etc.
■
With any pilot light assembly, always make sure the
thermocouple is completely installed within the pilot
bracket by either its mounting clip or nut.
1. Correct Flame
4. Wavy Blue Flame
2. Noisy, Lifting Flame
5. Hard, Sharp Flame
3. Lazy, Yellow Flame
6. Small, Blue Flame
Pilot flame
spreader
head
Thermocouple
Check for:
* Excessive drafts
* Pilot shield
loose
Check for:
* High gas pressure
* Improper pilot
orifice
Check for:
* High gas pressure
* Improper orifice
* Partially plugged
pilot orifice or dirty
pilot assembly
Check for:
* Partially plugged
pilot orifice or pilot
tubing
* Low gas pressure
* Dirty pilot assembly
Check for:
* Improper pilot orifice
* Low gas pressure
* Partially plugged pilot
orifice or
pilot tubing
3/8 in. to 1/2 in.
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