
E27
Boiler status:
Boiler work normally.
Possible causes:
Interruption on el. connections between
room corrector and boiler, connection to the boiler or
hydraulic crossover sensor is invalid.
Hydraulic crossover
sensor error
E16_1
Boiler status:
Boiler work normally.
Possible causes
:
Interruption in el. connections between
boiler and CM2K (between two CM2K’s), connection on
boiler and CM2K (or two adjecent CM2K’s) or CM2K
module is invalid.
Communication error with
CM2K module (3rd and
4th circuit)
E17_1
Sensor CM2K 3. circuit
Boiler status:
Pump of 3+ heating circuit doesn't work.
Boiler work normally.
Possible causes
:
Error on flow temperature sensor of 3+
heating circuit (on regulator CM2K).
E18_1
Corrector CM2K 3. circuit
Boiler status:
Pump of 3+ heating circuit work in
intervention mode by heating curve. Boiler work normally.
Possible causes
:
Error on room corrector of 3+ heating circuit (CM2K
regulator), bad corrector connection to the CM2K or room
corrector failure.
E19_1
Sensor CM2K 4. circuit
Boiler status:
Pump of 4+ heating circuit doesn't work.
Boiler work normally.
Possible causes
:
Error on flow temperature sensor of 4+
heating circuit (on regulator CM2K).
E20_1
Corrector CM2K 4. circuit
Boiler status:
Pump of 4+ heating circuit work in
intervention mode by heating curve. Boiler work normally.
Possible causes
:
Error on room corrector of 4+ heating circuit (CM2K
regulator), bad corrector connection to the CM2K or room
corrector failure.
E16_2
Boiler status:
Boiler work normally.
Possible causes
:
Interruption in el. connections between
boiler and CM2K (between two CM2K’s), connection on
boiler and CM2K (or two adjecent CM2K’s) or CM2K
module is invalid.
Communication error with
CM2K module (5th and
6th circuit)
E17_2
Sensor CM2K 5. circuit
Boiler status:
Pump of 5+ heating circuit doesn't work.
Boiler work normally.
Possible causes
:
Error on flow temperature sensor of 5+
heating circuit (on regulator CM2K).
E19_2
Sensor CM2K 6. circuit
Boiler status:
Pump of 6+ heating circuit doesn't work.
Boiler work normally.
Possible causes
:
Error on flow temperature sensor of 6+
heating circuit (on regulator CM2K).
E18_2
Corrector CM2K 5. circuit
Boiler status:
Pump of 5+ heating circuit work in
intervention mode by heating curve. Boiler work normally.
Possible causes
:
Error on room corrector of 5+ heating circuit (CM2K
regulator), bad corrector connection to the CM2K or room
corrector failure.
Error list
Technical instructions CONTROL UNIT
BioTec Plus
41