Lennox ComfortSense L7742U Programming Manual page 22

Mes
sage
Type Condition Display Text (Screen1)
Error Hum sensor
error (With Hu-
midifier or De-
humidifier):
conditions are
0%:
Stat will detect
error
0−10%:
Stat may de-
tect error
10−90%:
Normal opera-
tion
90−93%:
Stat may de-
tect error
93%:
Stat will detect
error
Error Hum sensor
error (Without
Humidifier or
Dehumidifier):
sensor reads
out of range
0% to 100%
Error L input detec- HVAC ERROR DETECTED
tion
Media Filter REPLACE MEDIA FILTER
UV Lamp
Humidity Pad
Routine sys ROUTINE SYS CHECK−UP
check up
Metal Insert for REPLACE METAL INSERT
Pure Air
Status Low battery
2 warning (when
24Vac is pres-
ent)
Note: When
battery V" is
low but we
have 24Vac
wires then it is
low priority er-
ror
506180−01 09/08
HUM SENSOR ERROR
REMIND SERVICE
HUM SENSOR ERROR
REMIND SERVICE
REMIND SERVICE
REMIND RESET
REPLACE UV LAMP
REMIND RESET
REPLACE HUM PAD
REMIND RESET
REMIND RESET
REMIND RESET
LOW BATTERY
REMIND
Display Text
(Screen2)
Priority
See 1−Critical
REMIND / SERVICE
notes
See 1−Critical
REMIND / SERVICE
notes
See REMIND / SER- 1−Critical
VICE notes
See REMIND / RE- 2−Moder-
SET notes ate
See REMIND / RE- 2−Moder-
SET notes ate
See REMIND / RE- 2−Moder-
SET notes ate
See REMIND / RE- 2−Moder-
SET notes ate
See REMIND / RE- 2−Moder-
SET notes ate
See REMIND notes 3.5−Minor Message is displayed
Page 22
Action to Clear /
System Action
All the humidity opera- User calls the dealer
tion will stop and the and has a new sensor
reading for humidity will installed OR the sen-
not be valid. This mes- sor reads back in nor-
sage indicates some- mal range.
thing seriously wrong
with the stat.
The display of Indoor
Humidity from HOME
will be turned OFF. If
user turns it on again,
the error is displayed.
The reading for humidity User calls the dealer
will not be valid. This and has a new sensor
message indicates installed OR the sen-
something seriously sor reads back in nor-
wrong with the stat. mal range.
The display of Indoor
Humidity from HOME
will be turned OFF. If
user turns it on again,
the error is displayed.
Message is displayed If the L signal is re-
on the dot Part. Outside moved, the message
UNIT may stop working. is cleared. OR User
can call the dealer.
Displayed on both lines User either Hit RESET
on HOME. or REMINDER button
on HOME
Displayed on both lines User either Hit RESET
on HOME. or REMINDER button
on HOME
Displayed on both lines User either Hit RESET
on HOME. or REMINDER button
on HOME
Displayed on both lines User either Hit RESET
on HOME. or REMINDER button
on HOME
Displayed on both lines User either Hit RESET
on HOME. or REMINDER button
on HOME
User can hit REMIND
on the dot Part. to get rid of the mes-
sage for 7 days. But
replacing battery is re-
quired.
table continued on next page
Recovery
Condition