Buderus 500 - 24/C, Руководство по обслуживанию

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Diagnosis 6
We reserve the right to make technical modifications Buderus Ltd. • http://www.buderus-domestic.co.uk
32 Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
step 15
Replace the pump, see box 101.
→
box
42
box 35
The contacts of the flow NTC sensor or safety sensor are broken.
Locking boiler-fault code
step 1
Check the flow NTC sensor and safety sensor, see box 104.
step 2
Are the flow NTC sensor and safety sensor functioning correctly? Yes:
→
step
4
No:
→
step
3
step 3
Replace the flow NTC sensor and safety sensor, see box 116.
step 4
Check the cable of the flow NTC sensor and safety sensor, see box 112.
step 5
Are the cables in order? Yes:
→
box
41
No:
→
step
6
step 6
Replace the cable loom (or the affected part thereof).
→
box
42
box 36
The system has detected an insufficient ionisation current during the ignition phase.
Blocking boiler-fault code
The system has detected an insufficient ionisation current after four startup
attempts.
Locking boiler-fault code
step 1
Is the heating system propane gas-fired? Yes:
→
step
2
No:
→
step
3
step 2
Ensure that no nitrogen remains in the gas tank or gas flow pipes.
You should also consult your gas utility company.
→
step
63
step 3
Check whether the gas tap is open, see box 59.
step 4
Is the gas tap open? Yes:
→
step
6
No:
→
step
5
step 5
Open the gas tap, see box 59.
→
step
63
step 6
Check the static and working gas pressure, see box 230.
step 7
Are the static and working gas pressures correct? Yes:
→
step
14
No:
→
step
8
step 8
Check to see if there is a restriction in the pipework between the gas tap and gas valve.
step 9
Is there a restriction? Yes:
→
step
10
No:
→
step
11
step 10
Deal with restriction.
→
step
63
step 11
Check for restrictions in the remaining section of the gas flow pipe.
step 12
Is there a restriction? Yes:
→
step
13
No:
→
step
38
step 13
Deal with restriction.
→
step
63
step 14
Has the gas flow pipe been bled of air? Yes:
→
step
16
No:
→
step
15
step 15
Vent the gas flow pipe of air, see box 239.
→
step
62
step 16
Check to see if the glow ignitor activates with the operating code
C [0c]
, see box 130.
step 17
Does the glow ignitor activate with the operating code
C [0c]
? Yes:
→
step
21
No:
→
step
18
box 34
[4p]
C [6a]
[6a]