Buderus Logamax plus GB142-24 Servicing Instructions page 57

Locking boiler fault code 3L-2
page 56
24
Check the supply cord of the blower
(120V AC). See page 87.
Is the supply cord okay?
44
page 83
3 P 2 1 6
Check to see if the blower
is soiled or wet.
Is the blower dry and
Check that the mains voltage is
Sufficient mains voltage?
Try to remedy the fault by integrating another
provisional blower. See page 88.
Has the malfunction been repaired?
Locking boiler-fault code 3P (flashing)
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
No
Yes
The blower is running too slowly.
clean?
Yes
120V AC.
Yes
No
44
page 83
Replace the supply cord.
Locking boiler-fault code.
No
Clean or replace the blower.
See page 88.
No
Have the electrical system tested.
Yes
Diagnosis
8
page 31
8
page 31
7
57