Shut-Down - REMEHA Quinta 30 Technical Information

9.2 Shut-down

9.2.1 Temporary shut-down with frost protection
- do not isolate the electric power supply
- do not close the gas cock.
- use the switch function, see Par. 6.1.3.
9.2.2 Permanent shut-down without frost protection
- Set system controls to off
- Isolate the electric power supply
- Close the gas cock.
10 FAULT-FINDING
10.1 General (all installations)
Check the following, in sequence (by service engineer):
Step Signs
1 Boiler display is blank.
2 Boiler display shows a
fault code
3 Boiler display shows
operating code
(see Par. 6.3)
Use boiler manual
4
override.
(see Par. 6.1.3)
Override external
5
controls by fitting a link
across terminals 3
and 4 of the boiler
terminal strip
6 Only with rematic
5240 C1 or 2945 C3 K
control: Check the
communication
between control and
boiler by means of the
two LED's on the
Check points
The mains voltage 230 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?
Does the boiler start up?
®
SR LED 1 is not flashing?
LED 2 is not flashing?
52
Both LED's are flashing?
Check the wiring on the
terminal strip and on the
Remeha Quinta 30
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.
Yes, check external
control and wiring, or go to
point 6.
No, go to point 5.
Yes, check boiler
parameters. If all OK, then
replace control box.
No, repeat point 3,or go to
point 6.
Interface or control box is
faulty
Interface or control is
faulty
If the wiring is correct,
replace the control box.