Bosch CONDENS 5000W - Page 8

Inspection and maintenance
Condens 5000W – 6720813953 (2018/12)
8
Table 5 Operating and fault codes
- - 2 0 4 The wall mounted gas
condensing boiler
cannot transfer the heat
to the heating system
and waits.
- - 2 1 2 The sensors inside the
wall mounted gas
condensing boiler
capture a different
temperature.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
- - 2 6 0 The sensors inside the
wall mounted gas
condensing boiler
captured a different
temperature.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
- - 2 6 5 The wall mounted gas
condensing boiler is
waiting. The wall
mounted gas
condensing boiler duly
switches on in order to
satisfy the heat
demand.
- - 2 7 0 The wall mounted gas
condensing boiler
starts.
- - 2 8 3
- - 2 8 4
C E 2 0 7 The water pressure is
too low.
• Check the water pressure
in the wall mounted gas
condensing boiler and
top up if necessary.
• Reset the wall mounted
gas condensing boiler.
C E 2 6 6 The sensors inside the
wall mounted gas
condensing boiler
captured a different
temperature.
• Check the water pressure
in the wall mounted gas
condensing boiler and
top up if necessary.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
d 4 2 1 3 The sensors inside the
wall mounted gas
condensing boiler
capture a different
temperature.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
d 4 3 4 1
E 9 2 1 9 The sensors inside the
wall mounted gas
condensing boiler
captured a different
temperature.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
E 9 2 2 0
Code Explanation Corrective measure
E 9 2 2 4 The temperature
measured by a
thermostat in the wall
mounted gas
condensing boiler is too
high.
• Check the water pressure
in the wall mounted gas
condensing boiler and
top up if necessary.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
E A 2 2 7 No burner ignition. • Check that the gas
isolator is open.
• Reset the wall mounted
gas condensing boiler.
E 9 2 7 6 The temperature
measured by the
sensors in the wall
mounted gas
condensing boiler is too
high.
• Check the water pressure
in the wall mounted gas
condensing boiler and
top up if necessary.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
E 9 2 8 5
E F 3 4 5 The sensors inside the
wall mounted gas
condensing boiler
captured a different
temperature.
•Check whether a
sufficient number of
radiator valves are open.
• Bleed radiators and vent
heating system.
• Reset the wall mounted
gas condensing boiler.
F d 2 3 1 The power was briefly
interrupted during a
fault.
• Reset the wall mounted
gas condensing boiler.
H 0 7 The water pressure is
too low.
• Check the water pressure
in the wall mounted gas
condensing boiler and
top up if necessary.
r E The wall mounted gas
condensing boiler is
reset.
Code Explanation Corrective measure