REMEHA Quinta 115 Technical Information page 57

Setting failure
0*
Failure of
1!
internal
communication
bus
Safety interlock - The safety interlock (on terminals 10 and 14 of the
12
Flow
1*
temperature too
high
Return
1(
temperature too
high
Return temp >
2$
flow temp
Fan not running - Fan or motor failed
2*
Fan runs
2(
continuously or
speed signal
not correct
Temperature
3!
sensor failure
3@
3$
3^
3&
Setting failure
4)
Ionisation
7&
failure during
boiler operation
Other Control box
Codes failure
Table 19 Faultcodes
- check parameter D (second digit must be 0)
- short circuit in flat cable: replace flat cable
- water/condensation on display
- possibly external EMC contamination
terminal strip) has tripped or the wire bridge has been
removed.
- Fuse F2 of the Comfort Master is defective
Check:
- the waterflow, ref. Par. 7.4.7.
- system for trapped air
- sensors for resistance at set temperature, see Fig. 22.
- if the boiler is full of water (min. pressure 0.8 bar)
- Flow sensor badly installed
- Pump operating in wrong direction or flow and return
connections crossed
- Supply and/or signal control cable – poor connections
or failed.
- Check control cable connections and for continuity
- Fan defective
- Flue draft conditions too high
Flow temperature sensor short circuit
Return temperature sensor short circuit
Outside temperature sensor short circuit
Flow temperature sensor not connected or open circuit
Return temperature sensor not connected or open circuit
check parameter D
After 4 restarts during 1 heat demand
- flue gas recirculation (internal/external)
- insufficient air flow – check fan or air inlet/flue outlet for
obstruction
- insufficient gas flow
- incorrect combustion.
- Press the 'reset'-key
- When fault returns, check wiring for short circuits
- When faults still return, replace the control box
Shut-off codes, see Par. 6.4.
57