Buderus Logamax plus GB142-24 Servicing Instructions page 65

Locking boiler fault code 6A
6 A 2 2 7
Press the "Reset" button.
New fault message
Is the
heating system propane
gas-fired?
Measure the static inlet gas pressure.
See page 107.
Is the
inlet gas pressure
okay?
Bleed the gas supply pipe. See page 106.
Has the gas supply pipe
been bled of air?
Check the hot surface ignitor is activated
during the operating code
See page 92.
Is the
hot surface ignitor activated
during the operating
code
Check the resistance of the hot surface
ignitor. See page 93.
Is the resistance of the
hot surface ignitor
okay?
30
page 66
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
No ionization after four startup attempts.
No
6 A
?
Yes
Yes
No
No
Yes
No
Yes
0 C
.
No
0 C
.
Yes
No
Yes
Locking boiler-fault code.
27
page 71
Contact the gas utility company to ensure that
no nitrogen remains in the gas tank or gas
supply pipes.
28
page 68
Bleed the gas supply pipe. See page 106.
29
page 68
Replace the hot surface ignitor.
See page 94.
Diagnosis
31
page 71
7
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