10.3.5 Clean the gas filter
Important
The 5- to 9-section boilers are supplied with a different gas valve
unit from the 10-section boiler.
1. Remove the gas filter.
2. Carry out a visual check.
3. Clean the gas filter without the use of liquids (shake it or carefully blow
it clean).
4. Replace the gas filter if necessary.
5. Reassemble the unit in reverse order.
Caution
In this gas valve unit, the gas filter holder has a positioning ridge.
Position this at the top left during assembly.
Fig.77 Clean the gas filter
4mm
3mm
1a
4x
2
2
1a 2x
1b
1c
1b
1c
5
4
3
4
3
10 Maintenance
68 7600532 - v.11 - 13122018
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