Buderus 500 - 28/C Servicing Manual page 53

box 138
Set multimeter to "measure resistance".
Check the mains cable of the glow ignitor for breaks.
The electrical resistance measured at each individual wire
must be approximately 0
Check the mains cable of the glow ignitor for internal short
circuits. The level of electrical resistance, measured
between any two wires, must be infinitely high.
box 139
Connect the plug of the glow ignitor.
Fit the DBA control panel and place the boiler into
operation, see box 51, 54 or 55.
box 140 Replace the glow ignitor
H
DANGER OF FATAL ACCIDENT
due to electric shock
Take the boiler out of operation, see box 43, 44 or 47.
Remove the plug of the glow ignitor, see box 131.
box 141
Loosen the fixing nut of the glow ignitor (item 1).
Remove the mounting plate (item 2).
Detach the glow ignitor (item 3).
We reserve the right to make technical modifications
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
JP1
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box 142
CAUTION!
The filament of the glow ignitor consists of sintered
material and is highly breakable.
Fit a new glow ignitor.
Connect the plug of the glow ignitor.
Put the boiler into operation, see box 51, 54 or 55.
box 143 Measure the ionisation current
Take the boiler out of operation, see box 43, 44 or 47.
box 144
Pull out the ionisation electrode plug (item 1).
box 145
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2
Use a multimeter that is specially designed to measure the
ionisation current.
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Actions
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Buderus Ltd. • http://www.buderus-domestic.co.uk
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