Servicing
5
48
Installation and servicing instructions condensing gas boiler 800 - 24/29/43/60 and 800 - 24T25/29T25 H/V • edition 02/2006
Subject to modifications resulting from technical improvements !
Buderus • http://buderus-domestic.co.uk
5.3.6
Replacing the fan unit
z
Loosen the screw couplings of the gas injector (fig. 58,
item 1) and safety valve (fig. 58, item 2).
z
Pull off the hoses leading to the fan (fig. 58, item 3).
z
Pull off the hoses at the differential pressure measuring
point (fig. 58, item 4).
z
Pull out the plug of the burner thermostat (fig. 58, item 5).
z
Pull out the plug of the fan (fig. 59, item 1).
z
Turn and pull out the safety retainer of the fan
(fig. 59, item 2).
z
Push up the fan (fig. 60, item 1).
z
Pivot the lower end of the fan forward (fig. 60, item 2) and
take it out downwards and forwards (fig. 60, item 3).
z
Replace the fan
z
Reassemble in reverse order.
fig. 58 Disconnecting
1 2
10
0 1
11
KW
10
1
10
1
4
1
3
2
1
2
NOTE
Please refer to fitting instructions for 230 V fan
unit.
fig. 59 Removing safety retainers
1
2
fig. 60 Removing the fan
1
2
3
