DeDietrich G25 Manual de Serviço descarregar pdf (Página 45)

15/02/2011 - 300014279-001-J DTG(E)130 - 35/45/65/90/115 Eco.NOxPlus

10. Messages - Alarms

• BOILER S.FAIL., BACK S.FAILURE

The boiler will no longer satisfy any heating requests.

• OUTSI. S.FAIL.

- The boiler operates on

BOILER MAX

temperature

- The valve setting is no longer ensured but monitoring the

maximum temperature of the circuit after the valve is ensured.

- Valves may be manually operated.

- Reheating the domestic hot water remains ensured

• DHW S. FAILURE

- Heating of domestic hot water is no longer ensured

- The load pump operates.

- The load temperature of the dhw tank is the same as the boiler.

• OUTL S.B FAIL., OUTL S.C FAIL.

- The pump operates

- The valve is no longer powered and can be adjusted manually.

• ROOM S.A FAIL., ROOM S.B FAIL., ROOM S.C FAIL.

The circuit concerned operates without any influence from the

room sensor.

• SMOKE S. FAIL.

Flue gas sensor defective. The boiler goes into safety shutdown.

• SWIM.P. S.FAIL

Pool reheating is independent of its temperature.

• ST.TANK S.FAIL

The hot water storage tank reheating operation is no longer

assured.



The 10 latest faults appearing on the display are memorised in

the paragraph #HISTORY D..

See chapter Parameter and input/output check (mode tests).

Faults Probable causes Action

FAN OFF FAIL The fan is not working

Fan defective

. Check the fan wiring (corrosion of the connection). Safety control box

defective

FAN ON FAIL The fan is working constantly

Electrical connections broken

. Fan control is defective (replace the fan).

BOILER S.FAIL. Boiler sensor defective

Check the link and the connectors

. Replace the sensor if necessary. Reset the boiler.

PARASIT FLAME Detection of a parasite flame

Check the seals on all gas connections

. Set the gap between the ignition electrodes.

Check that the surface of the burner does not have any fibre residues

STB BOILER Outlet temperature > 110°C

Check the STB safety thermostat and the wiring

. Bleed the boiler. Check the boiler

pump

. Check the hydraulic circuit on the installation.

STB SMOKE Flue gas temperature > 100°C

Check flue gas discharge

. Replace it if necessary.

STB BACK Return temperature too high

Check the wiring

. Bleed the boiler. Check the boiler pump. Check the hydraulic circuit on

the installation

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DeDietrich G25 Manual de Serviço Página 45

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