DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual page 72

11 Control stops and faults
Fault
Description Possible
code
Heat exchanger
E:04
temperature exceeded
below normal range
Heat exchanger
temperature exceeded
E:05
above normal range
(high limit thermostat)
Return temperature
E:06
sensor short circuited
Return temperature
E:07
sensor open circuit
Return temperature
exceeded below normal
E:08
range
E:09 Return temperature
exceeded above normal
range
Too great a difference
E:10
between heat exchanger
E:11
and return temperature
E:12
Trap protection activated
72
cause

Bad connection

Defective sensor

Sensor not correctly
mounted

No or too little flow

Bad connection

Defective sensor

Sensor not correctly
mounted

Bad connection

Defective sensor

Sensor not correctly
mounted

Bad connection

Defective sensor

Sensor not correctly
mounted

No or too little flow

Defective sensor

No or too little flow

Sensor not correctly
mounted

Bad connection

Pressure in flue gas
discharge duct is (was)
too high

Air supply obstructed
Check/solution

Check the cable bundle

Replace the sensor if necessary

Check:

flow (direction, pump, valves)

if system has been correctly
bled

temperature sensors for
deviations

if sensor is correctly mounted

water pressure in the system

if heat exchanger is dirty

Check the cable bundle

Replace the sensor if
necessary

Check if sensor is correctly
mounted

Check the cable bundle

Replace the sensor if
necessary

Check if sensor is correctly
mounted

Check the cable bundle

Replace the sensor if
necessary

Check:

flow (direction, pump, valves)

if system has been correctly
bled

temperature sensors for
deviations

if sensor is correctly mounted

water pressure in the system

if heat exchanger is dirty

Replace the sensor if
necessary
 Check
:

flow (direction, pump, valves)

if system has been correctly
bled

temperature sensors for
deviations

water pressure in the system

if heat exchanger is dirty

if sensor is correctly mounted

Check the cable bundle

Check that the trap is not
empty; top up if necessary

Blockage in flue gas
discharge/RGA covered
C230 ECO-A