Lennox CLIMATIC 40 User Manual page 26

ALARMS
ALARMS/WARNINGS CODES
DISP
DISP
DESCRIPTION
CL40/
DC40
DC41
High pressure switch alarm, circuit .
This alarm may indicate the following problems:
- High pressure switch protection.
- Compressor stopped.
HP
- Indoor fan stopped (Aircoolair).
HP
- Excessive refrigerant charge.
- Insufficient water flow in heating cycle (Ecolean).
High pressure switch alarm, circuit 2.
HP2 The same as previous alarm but this time referred to
circuit 2.
Low pressure switch alarm, circuit .
This alarm may indicate the following problems:
- Low amount of refrigerant.
LP
- Low water flow in cooling cycle (Ecolean).
- Outdoor coil blocked in heating cycle.
LP
- Outdoor fan stopped.
Low pressure switch alarm, circuit 2.
LP2 The same as previous alarm but this time referred to
circuit 2.
Indoor fan thermal protection alarm. (Aircoolair only):
TP - Fan thermal protection open.
- Faulty power supply.
T
TC Not used.
TC2 Not used.
LA ------ Not used.
Water flow switch alarm.
FL ------ It indicates low water flow in the unit. (Ecolean) only.
After 5 automatic it comes to be a manual reset.
Not used.
FLb ------
B probe error.
E
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
E5 Not used.
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.
Warning.
Hcl-4 Hc Compressor operating hour limit exceeded.
Disabled by default.
Warning.
EPr ------ Climatic 40 hardware error.
Warning.
Climatic 40 hardware error.
Epb ------
ESP ESP Expansion board error.
Warning.
Condensing fan speed control hardware error.
EL-2 ------
Warning.
Circuit -2 defrost ends due to maximum time (8 mi-
dF-2 ------
nutes).
Warning.
d-2 ------
Circuit -2 defrosting.
EFFECT RE
Reset and check:
- Coil is clean and not blocked.
- Water flow on the heating cycle (Ecolean).
Circuit 
- Outdoor fan during cooling cycle.
compressors MAN.
- Indoor fan during heating cycle (Aircoolair).
stop
- Compressor protection.
- Condenser air temperature is very high.
- Refrigerant charge.
Circuit 2
compressors MAN. The same as previous alarm but this time referred to circuit 2.
stop
Reset and check:
- Coil is clean and not blocked.
- Water flow on the cooling cycle (Ecolean).
Circuit  - Outdoor fan during heating cycle.
compressors AUTO - Indoor fan during cooling cycle.
stop - Fuses of the fan.
- Evaporation air temperature is very low.
- Check refrigerant charge.
- Expansion valve.
Circuit 2
compressors AUTO The same as previous alarm but this time referred to circuit 2.
stop
Reset and check:
Unit stops MAN. - Fan.
- Power supply.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
- Check water circuit is not blocked.
AUTO/
Unit stops - Check water filter.
MAN.
- Check water pump operation.
Call SAT.
------ ------
Check connection of B1 probe (see electrical diagram), check the
Unit stops AUTO
continuity and change the faulty component.
Check connection of B2 probe (see electrical diagram), check the
Unit stops AUTO
continuity and change the faulty component.
Check connection of B3 probe (see electrical diagram), check the
Unit stops AUTO
continuity and change the faulty component.
Check connection of B4 probe/pressure transducer (see electrical
Unit stops AUTO diagram), check the continuity and change the faulty component.
------ ------ Contactar con el SAT.
Check connection of B6 probe(see electrical diagram), check the conti-
Unit stops AUTO
nuity and change the faulty component.
Check connection of B7 probe (see electrical diagram), check the
Unit stops AUTO
continuity and change the faulty component.
Check connection of B8 probe/pressure transducer (see electrical
Unit stops AUTO diagram), check the continuity and change the faulty component.
Check:
------ AUTO - Compressor operating hour (parameter C0).
- Compressor operating hour limit (par. C5).
------ AUTO Call SAT.
Unit stops AUTO Call SAT.
Check:
- Green LED turned on inside the board.
Unit stops AUTO
- J4-J9 connections (see electrical diagram).
Call SAT.
Outdoor fan at
- Check CFM board connections (see electrical diagram).
maximum AUTO
Call SAT.
speed.
------ AUTO
------ ------
25
ACTION