Weishaupt WTC-OB 18-B, Manual

Page: 88 / 132

Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
9 Servicing
83311002 1/2018-03 La
88-132
9.18 Removing and refitting oil filter insert
Observe notes on servicing [ch. 9.1].
Removing
Place oil filter vent combination into service position.
Close fuel shut off device
1 .
Open clamping ring 3 .
Replace filter insert 2 .
Refitting
Refit filter insert in reverse order, ensuring:
sealing surfaces are clean and the O ring
4
is seated correctly,
if necessary replace O ring.
CAUTION
Oil pump seized due to running dry
Pump could be damaged.
Fill oil supply with oil and purge, if necessary use parameter
73
(program
Pr2
).
[ch. 7.2].
1
4
2
3
Oil level in the filter cup
Due to various factors (e g filter resistance, pressure conditions), the oil level in the
filter cup can drop to the lower edge of the filter element. Reliable operation of the
system is nevertheless guaranteed, as the interior of the filter insert is completely
filled with oil.