Lennox CLIMATIC 40 User Manual page 26

ALARMS
ALARMS/WARNINGS CODES
DISP
DISP
CL40/
DC40
DC41
High pressure switch alarm, circuit 1.
This alarm may indicate the following pro-
blems:
- High pressure switch protection.
HP1
- Compressor stopped.
- Excessive refrigerant charge.
HP
- Insuffi cient water fl ow in heating cycle
(Ecolean).
High pressure switch alarm, circuit 2.
The same as previous alarm but this time
HP2
referring to circuit 2.
Low pressure switch alarm, circuit 1.
This alarm may indicate the following pro-
blems:
- Low refrigerant.
LP1
- Low water fl ow in cooling cycle (Ecolean).
LP - Outdoor coil blocked in heating cycle.
- Outdoor fan stopped.
- Low pressure switch protection.
Low pressure switch alarm, circuit 2.
The same as previous alarm but this time
LP2
referring to circuit 2.
Indoor fan thermal protection alarm. (Air-
coolair only):
TP
- Fan thermal protection open.
- Faulty power supply.
T
Not used.
TC1
Not used.
TC2
Not used.
LA ------
Water fl ow switch alarm.
This indicates low water fl ow in the unit. (Eco-
lean) only.
FL ------
After 5 minutes it automatically requires to be
reset manually.
Not used.
FLb ------
B1 probe error.
E1
Faulty probe or connection.
B2 probe error.
E2
Faulty probe or connection.
B3 probe error.
E3
Faulty probe or connection.
B4 probe/pressure transducer error.
E4
Faulty probe or connection.
E00
Not used.
E5
B6 probe error.
E6
Faulty probe or connection.
B7 probe error.
E7
Faulty probe or connection.
B8 probe/pressure transducer error.
E8
Faulty probe or connection.
CLIMATIC 40 User manual • MUL37E-0607 / 10-2008
DESCRIPTION EFFECT RE
Reset and check:
- Coil is clean and not blocked.
AUTO/MAN. - Water fl ow on the heating cycle (Ecolean).
Circuit 1
- Outdoor fan during cooling cycle.
compressors
After 3 times - Indoor fan during heating cycle (Aircoolair).
stop
in 1 hour - Compressor protection.
- Condenser air temperature is very high.
- Refrigerant charge.
Circuit 2 AUTO/
The same as previous alarm but this time referring to
compressors MAN.
circuit 2.
stop After 3t/h
Reset and check:
- Coil is clean and not blocked.
- Water fl ow on the cooling cycle (Ecolean).
AUTO/MAN.
Circuit 1 - Outdoor fan during heating cycle.
compressors - Indoor fan during cooling cycle.
After 3 times
stop - Fuses of the fan.
in 1 hour
- Evaporation air temperature is very low.
- Check refrigerant charge.
- Expansion valve.
Circuit 2 AUTO/
The same as previous alarm but this time referring to
compressors MAN.
circuit 2.
stop After 3t/h
Reset and check:
Unit stops MAN. - Fan.
- Power supply.
Call Technical Service.
------ ------
Call Technical Service.
------ ------
Call Technical Service.
------ ------
- Check water circuit is not blocked.
Unit stops AUTO/MAN. - Check water fi lter.
- Check water pump operation.
Call Technical Service.
------ ------
Check connection of B1 probe (see electrical diagram),
Unit stops AUTO
check continuity and change the faulty component.
Check connection of B2 probe (see electrical diagram),
Unit stops AUTO
check continuity and change the faulty component.
Check connection of B3 probe (see electrical diagram),
Unit stops AUTO
check continuity and change the faulty component.
Check connection of B4 probe/pressure transducer (see
Unit stops AUTO electrical diagram), check continuity and change the faulty
component.
Call Technical Service.
------ ------
Check connection of B6 probe(see electrical diagram),
Unit stops AUTO
check continuity and change the faulty component.
Check connection of B7 probe (see electrical diagram),
Unit stops AUTO
check continuity and change the faulty component.
Check connection of B8 probe/pressure transducer (see
Unit stops AUTO electrical diagram), check continuity and change the faulty
component.
ACTION
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