Lennox CLIMATIC 40 User Manual page 28

ALARMS
ALARMS/WARNINGS CODES
DISP
DISP
CL40/
DC40
DC41
High ambient temperature warning.
Ht ------
Ambient temperature > 40ºC.
Warning the low ambient temperature.
Lt ------
Disabled by default.
AHt ------ Not used.
Not used.
HLt ------
Low power supply warning.
ELS ------
Power supply < 20.4V.
High power supply warning.
EHS ------
Power supply > 26.4V.
Ed1 ------ Not used.
Ed2 ------ Not used.
Not used.
SH1 ------
SH2 ------ Not used.
Not used.
nO1 ------
nO2 ------ Not used.
LO1 ------ Not used.
LO2 ------ Not used.
HA1 ------ Not used.
Not used.
HA2 ------
EP1 ------ Not used.
Not used.
EP2 ------
ES1 ------ Not used.
ES2 ------ Not used.
EU1 ------ Not used.
EU3 ------ Not used.
Not used.
Eb1 ------
Eb2 ------ Not used.
Not used.
L ------
Ed1 ------ Not used.
Ed2 ------ Not used.
PH1 ------ Not used.
PH2 ------ Not used.
Not used.
SUL ------
Alarm, faulty communication between DC40
tEr OcH
and Climatic 40. (Aircoolair only).
Generic alarm.
AcH
Some active alarms on Climatic 40.
Ahu Not used.
DC40 internal probe alarm.
AtE
Faulty internal probe.
CEr DC40 setting error.
DC40 hardware error.
UEr
CLIMATIC 40 User manual • MUL37E-0607 / 10-2008
DESCRIPTION EFFECT RE
Check location of ambient probe; avoid places where
AUTO measurement of the ambient temperature by the internal
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sensor may be altered.
Call Technical Service.
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Call Technical Service.
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Call Technical Service.
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Check power supply of controller = 24V (see electrical
AUTO
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diagram).
Check power supply of controller = 24V (see electrical
Unit stops AUTO
diagram).
Call Technical Service.
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- DC40 connections (see electrical diagrams).
Unit stops AUTO
Call Technical Service.
Check Climatic 40 alarm code and act by accordingly.
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Call Technical Service.
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Call Technical Service.
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Call Technical Service.
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Call Technical Service.
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ACTION
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