Fault-Finding; General (All Installations) - REMEHA Quinta 115 Technical Information

10 FAULT-FINDING

10.1 General (all installations)

Check the following, in sequence (by service engineer):
Step Signs
1 Boiler display is blank. The mains voltage 230
2 Boiler display shows a
fault code
3 Boiler display shows
operating code
(see Par. 6.3)
4 Use boiler manual
override.
(see Par. 6.1.3)
5 Override external
controls by fitting a
link across terminals
3 and 4 of the boiler
terminal strip
Check points
V
The fuse in the euro-
connector
The control box fuses
For flashing digits
0 (no heat demand)
1 to 9, h, l, b
Does the boiler start up? Yes, check external
Does the boiler start up? Yes, check boiler
54
Remeha Quinta 115
Actions
Replace fuse if necessary,
but check what circuit it
was protecting and rectify
if faulty.
If yes, follow instructions
in the table, ref. Par. 10.2.
Go to point 4.
try to find the cause of
the fault, using operating
mode shown.
control and wiring, or go
to point 6.
No, go to point 5.
parameters. If all OK,
then replace control box.
No, repeat point 3, or go
to point 6.