REMEHA Gas 310 ECO Technical Information page 54

16.2 Shut-off codes
Code Description
)* Insufficient air transport during pre-ventilation.
b
The boiler is locked after 5 restarts (6 starts) with code 08
(see section 14.4).
b @$ T
is higher than T
return
more than 10 minutes (and the boiler has been running at
minimum load for 10 minutes).The shut-off is lifted when T
is less than or equal to T
@% Maximum acceptable ascension speed of the boiler block
b
temperature has been exceeded. The boiler shuts down for
10 minutes, after 5 consecutive start attempts within one heat
demand command the shut-off is recorded in the failure regis-
ter as a fault, the boiler does not lock out/go into failure mode.
@^ If minimum gas pressure switch LD is connected (optional):
b
minimum gas pressure undershot. The shut-off is lifted when
the gas pressure returns.
@8 Fan not running
b
@9 Fan continues to run or signal incorrect
b
#) Maximum acceptable difference between flow and return tem-
b
perature has been exceeded. The boiler shuts down for 150
seconds, after 20 consecutive start attempts within one heat
demand command the shut-off is recorded in the failure regis-
ter as a fault, the boiler does not lock out/go into failure mode.
38 Air pressure differential sensor short circuited; after 4 restarts
b
the shut-off goes into failure mode
39 Air pressure differential sensor open; after 4 restarts the shut-
b
off goes into failure mode
$# One or more parameters are out of limits.
b
$5 Hydraulic pressure sensor short circuited
b
$6 Hydraulic pressure sensor open
b
62560.indd 54 62560.indd 54
+ 2° (e.g. 93°, if T is 90°) for
flow return
+ 3°, e.g. 92°.
flow
54
Remeha
Gas 310 ECO
Cause/Check
- Air supply or flue gas discharge for
blockages/ installation faults
- Air pressure differential switch and
connections.
- Flow and return sensors have been
swapped
- Flow and return pipes have been
return
swapped.
- Whether heating pump is running
- The water flow through the boiler
- Water pressure.
- Gas supply (is gas valve open?)
- Is switch set correctly?
- Wiring.
- Fan defective
- Fan cable or connector is corroded,
resulting in absence of voltage or
control signal
- Check the fan cable connectors on
both the fan side and the automatic
control unit side
- Fan electronics defective
- High natural draught
- Whether the heating pump is operat-
ing
- The water flow through the boiler
- Water pressure
- Check the connecting cable of the air
pressure differential sensor
- The air pressure differential sensor is
defective or not connected
- Check the air pressure differential
sensor connecting cable for short-
circuiting, etc.
- Air pressure differential sensor is
defective
The parameters in the memory of the
control unit are incorrect.
- Check the hydraulic pressure sensor
connecting cable for short-circuiting,
etc.
- Hydraulic pressure sensor is defec-
tive
- Check the connecting cable of the
hydraulic pressure sensor
- The hydraulic pressure sensor is
defective or not connected
18-6-2009 13:15:02 18-6-2009 13:15:02