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WM&FD TWIN
051019
Accessing Service Menu
Hold SERVICE for 3 seconds
Cycle through menu options – UP/DOWN
Press SET to see number of alarms
Press SET again to return to menu options
Exit menu - UP and SET
+
Accessing Alarm Code Information
Press and release ALARM
Cycle through menu options – UP/DOWN
Press SET to see number of alarms
Press SET again to return to menu options
Exit menu - UP and SET
+
Emerson
™
Electronic Unit Controller
Quick setup and troubleshooting guide
Low Pressure Cut-In Low Pressure Cut-Out
Alarm
Description
PoF
Keypad locked
Pon
Keypad unlocked
P1
Suction probe failure
P2
Condenser probe failure
P3
DLT probe failure
HA
High condenser temperature alarm
dLt
DLT temperature alarm
dLL
DLT lock alarm
HP
High pressure trip alarm
HPL
High pressure trip lock-out alarm
EE
Module Failure
LOC
Number of lock-outs
Code
Description
StH
CompressorStarts –1000 -999999
StL
Compressor Starts –0 -999
CHH
CompressorHours -1000 -999999
CHL
Compressor Hours -0 -999
F1H
Fan 1 Hours -1000 -999999
F1L
Fan 1 Hours-0 -999
F2H
Fan 2 Hours -1000 -999999
F2L
Fand 2 Hours -0 -999
Example: If StH=12 and StL=500, the total num-
ber of compressor starts=12,500
Adjusting Low Pressure Settings
Hold DOWN and SET simultaneously for 3 seconds
to enter menu (PSI light will
ash)
Cycle through menu options – UP/DOWN
Select function – SET
Adjust value – UP/DOWN
Store function - SET
Exit menu - UP and SET
+
+
Book of Alarms –
to enter alarm menu
Fan light 1 & 2
(Fan cycle units only)
Service – to enter
service menu
Service
menu
Run
time
Active
alarm
Alarm
history
Set – Displays
set point. In
programming
mode, it con
rms
an operation
Compressor
Module Restart –
push to reset
the HPL, DLL
lock out faults
(cycle power)
When light is on, feature or component is on or active
For more information visit
EmersonClimate.com/ElectronicUnitController
or call 1-888-367-9950
Note: After 15 seconds of inactivity the controller will revert
to the default display.