Actions
7
We reserve the right to make technical modifications
Buderus Ltd. • http://www.buderus-domestic.co.uk
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
55
box 154
z
Connect the plug of the ionisation electrode.
z
Refit the DBA control panel, by following the above
procedure in reverse order, and place the boiler into
operation, see box 51, 54 or 55.
box 155 Check and replace the ionisation electrode
z
Take the boiler out of operation, see box 43, 44 or 47.
z
Remove the plug of the ionisation electrode, see box 144.
box 156
z
Loosen the fixing nut on the ionisation electrode (item 1).
z
Remove the mounting plate (item 2).
z
Detach the ionisation electrode (item 3).
box 157
z
Set multimeter to “measure resistance”.
z
Take a reading at the ionisation electrode to check
whether there is a possible break in the electrode cable.
The electrical resistance of the ionisation electrode cable
must be approximately 0
Ω
.
1
2
3
box 158
z
Check the ionisation electrode for signs of wear (item 2),
damage (item 3) or soiling (item 4).
box 159
z
Replace the ionisation electrode if required.
z
Fit the ionisation electrode.
z
Connect the plug of the ionisation electrode.
z
Put the boiler into operation, see box 51, 54 or 55.
box 160 Check the ionisation circuit – earth (ground)
lead
z
Check to ensure that the earth (ground) lead of the
ionisation circuit (item 1) has been correctly fitted.
1
2
3
4
1
