REMEHA 610 ECO Technical Information page 46

Lack of ionisation during opera-
tion (after 4 restarts during 1
77
heat demand)
Boiler block temperature too
83
high
Gas leak VA1 (optional)
89
Gas leak VA2 (optional)
90
Air pressure differential sensor
91
fault
Boiler block temperature > flow
94
temperature + hysteresis
Temperature sensor fault
95
Temperature sensor fault
96
Boiler block temperature too
97
high
Other
Control unit fault
codes
table 23 Failure codes per boiler module
- Flue gas recirculation. Check flue gas discharge system for installa-
tion faults and heat exchanger for possible leaks
- Insufficient air flow due to blockage
- Check the boiler settings.
Check:
- The heating pump is running
- There is sufficient water flow through the boiler
- The water pressure is > 0.8 bar.
The VPS gas leakage control unit has detected a leak. Check for exter-
nal leaks, otherwise replace gas valve multiblock.
The VPS gas leakage control unit has detected a leak. Check for exter-
nal leaks, otherwise replace gas valve multiblock.
Air pressure differential sensor fault during pre-ventilation (after 4
restarts).
Check the following:
- Is the air pressure differential switch defective
- Has the wiring short circuited
- Check for signs of external thermal draught in the flue gas discharge
duct.
Check:
- The heating pump is operating
- There is sufficient water flow through the boiler module
- The water pressure is > 0.8 bar.
Short circuit of boiler block sensor.
Boiler shut-off sensor not connected or defective.
Check:
- The heating pump is operating
- There is sufficient water flow through the boiler module
- The water pressure is > 0.8 bar.
Proceed as follows with all non-listed codes:
- Press reset once
- Check that the wiring is not short circuited
- If the fault persists, contact our Service Department.
46
Remeha Gas 610 ECO