47
Henrad SE FF
- Installation
Remove the burner assembly.
Check detection electrode visually
for
damage / contamination.
If possible, check insulation
resistance, which should be at
least 100 Megohms.
Check lead for electrical continuity.
Check that the electrode is in the
flame area and is 12mm (± 1mm)
from the burner
Exit
82 FAULT FINDING CHART 4 - Flame Detection
FAULT FINDING
F
AUL
T FINDING
YES
Boiler lights briefly then goes off, leaving LED2
on the PCB lit
Is polarity of the supply correct ? Ensure that
live is connected to L and neutral to N
YES
Check all connections on Board 37.
If no fault found, check Board 37 by substitution.
Boiler should now light
Re-assemble the boiler.
Does the boiler now light ?
YES
NO
YES
Remove the fan. Is the detection lead
undamaged and attached to the electrode?
Содержание Henrad SE 30 FF
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