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OVERVIEW OF SETTINGS
Symptom Possible Cause Action
F. Burner lights on pilot but
burner locks out after 3 -
4 seconds.
1. Ultra-violet cell faulty 1. As B3
2. Ultra-violet cell is not receiving a
2. Clean cell and check correctly in-
G. Smell of gas local to the
appliance.
1. Leakage from pipe line joints or pi-
lot or that the main gas valves are
not gas tight.
1. Switch OFF burner and check pipe
line joints with soap solution.
2. Close pilot manual valve and then
main manual valve at the burner to
see if this isolates the problem.
Call gas engineer to check the au-
tomatic valves. Do not operate until
this has been done.
H. Combustion noise beco-
-
mes yellow. Boiler door
becomes hotter than
usual.
1. Air inlet accidentally masked. 1. Clear obstruction.
2. Air inlet damper position moved. 2. Call Service Engineer to reset and
make a combustion check.
3. Burner head parts have moved,
become worn or overheated.
3. Call Service Engineer to adjust
or replace and make combustion
check.
4. Gas pressure alteration. 4.
5. -
cked or restricted.
5. Check and clear restriction.
6. Door refractory failed. 6. Replace if damage is severe.
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