SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
Control Operation - Service 2
USER GUIDE
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SERVICE MENU
In addition to a feature rich customer menu, the 3000
series also offers a service menu with the ability to
fine tune and monitor unit operation.
To initiate the Service menu hold both and for 5
seconds.
Actual Temps
The Actual Temp option in the service menu will
display raw thermistor readings without calculating
offsets.
1.
Press
to select “Actual
Temps”.
2.
Press
3.
Use to scroll through available thermistor
readings.
To exit the Actual Temps menu press to select
“Return to Menu” and press
to confirm.
All Errors
The All Errors option keeps record of any system
errors. When an error occurs it is recorded to all errors.
The number next to the error indicates the number of
recorded instances. Errors in the log may not be
currently active. The error log memory is non volatile
and is persistent should power be lost and restored to
the unit. See below for a list of logged errors and their
respective descriptions.
ID
Description
Solution
No
Comm
Unit lost
communication to
the display.
Unplug the communication
cable from the user interface.
Check the black to red
conductors looking for 5 VDC.
If voltage is present replace
the user interface. If no
voltage is present check for 5
VDC at the main board where
the
communication
cable
plugs onto the pins for the red
and black conductors. If 5
VDC is not present replace the
main control board. If 5 VDC
is
present
replace
the
communication cable.
Zone T
Open
Zone thermistor
circuit open.
Check thermistor connection
to harness for moisture or
corrosion.
Also
check
connection where thermistor
harness attaches to main
board. If connections are valid
replace the thermistor.
Evap T
Open
Evaporator
thermistor circuit
open.
Check thermistor connection
to harness for moisture or
corrosion.
Also
check
connection where thermistor
harness attaches to main
board. If connections are valid
replace the thermistor.
Amb
Thrm
Open
Ambient
thermistor circuit
open.
Check thermistor connection
to harness for moisture or
corrosion.
Also
check
connection where thermistor
harness attaches to main
board. If connections are valid
replace the thermistor.
Zone T
Short
Zone thermistor
circuit shorted.
Check thermistor connection
to harness for moisture or
corrosion.
Also
check
connection where thermistor
harness attaches to main
board. If connections are valid
replace the thermistor.
Evap T
Short
Evaporator
thermistor circuit
short.
Check thermistor connection
to harness for moisture or
corrosion.
Also
check
connection where thermistor
harness attaches to main
board. If connections are valid
replace the thermistor.
Up
Select
Down
RETURN TO MENU
ACTUAL TEMPS
ZONE = 2°C
EVAP = °C
Up
Error ID
Number
Of Occurrences
Select
Down
RETURN TO MENU
ALL ERRORS
NO COMM 0
ZONE T OPEN 0
.
and