De Dietrich MS 24 MI FF - Инструкция по эксплуатации - Страница 74

73

71.03982.03 - EN

OPERATING INSTRUCTIONS

10. TROUBLESHOOTING

Do not drain the whole system as illing up with water again causes unnecessary and harmful scale to build up inside the 

boiler and the heating elements. If the boiler is not used during winter and is therefore exposed to the danger of frost, add 

some speciic anti-freeze to the water in the system (e.g.: propylene glycol coupled with corrosion and scale inhibitors).

The electronic boiler management system includes a “frost protection” function for the heating system which, when delivery 

temperature falls below 5°C, operates the burner until a delivery temperature of 30°C is reached.

The frost protection function is enabled if:

*   the boiler is electrically powered;

*   the gas tap is open;

*   the system is at the correct pressure;

*   the boiler is not blocked.

9. PROLONGED SHUTDOWN. FROST PROTECTION

N.B.:

 in case of a fault, the display backlighting lashes together with the error code.

To keep the boiler eficient and safe, have it checked by the authorised Service Centre at the end of every operating period.
Careful servicing ensures economical operation of the system.
Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily lammable cleaners (e.g.: petrol, 
alcohol, and so on). Always switch off the appliance before cleaning it (see section 7 Switching off the boiler).

11. ROUTINE MAINTENANCE INSTRUCTIONS

Faults are shown on the display with an error code (e.g.: E 01):

CODE 

DISPLAYED

FAULT

CORRECTIVE ACTION

E01

Failed ignition shutdown

Press and hold down “

R

” for at least 2 seconds. If this fault persists, call the 

Authorised Service Centre.

E02

Safety thermostat tripped

Press and hold down “

R

” for at least 2 seconds. If this fault persists, call the 

Authorised Service Centre.

E03

Flue thermostat/ lue pressure 
switch tripped

Call the Authorised Service Centre.

E04

Shutdown after 6 consecutive 
lame losses

Press and hold down “

R

” for at least 2 seconds. If this fault persists, call the 

Authorised Service Centre.

E05

Flow sensor failure

Call the Authorised Service Centre.

E06

DHW sensor fault

Call the Authorised Service Centre.

E10

Hydraulic pressure switch 
block

Check that the pressure in the system is correct; See section 6. If this fault 
persists, call the Authorised Service Centre.

E25/E26

Probable blocked pump safety 
trip

Call the Authorised Service Centre.

E35

Parasite lame (lame error)

Press and hold down “

R

” for at least 2 seconds. If this fault persists, call the 

Authorised Service Centre.

E96

Switching off due to reductions 
in power supply

RESET is automatic. If this fault persists, call the Authorised Service Centre

To RESET the boiler, press and hold down “R” for at 
least 2 seconds. If this fault persists, call the Authorised 
Service Centre.

N.B.:

 5 reset attempts can be performed after which 

the boiler shuts down. To reset again, switch off the 
boiler for a few seconds.

Figure 3

0607_1205

RESETTABLE

faults