20
16.6 System Troubleshooting
NOTE:
Refer to the instructions accompanying the
ComfortNet compatible outdoor AC/HP unit for unit specific
troubleshooting information. Refer to the
Troubleshooting
Chart
at the end of this manual for a listing of possible air
handler error codes, possible causes and corrective actions.
17 DIRECTIONS TO COMFORTNET SYSTEM ADVANCED
FEATURE MENUS
Press
MENU
, scroll down and press
COMFORTNET USER MENU
.
Enter the date code (password) when prompted. The date code is
printed on the back of the thermostat; or press
MENU>EQUIPMENT STATUS
and scroll down to find the date code.
After you enter the date code, select air handler to view the sys-
tem menus.
17.2 Diagnostics
Accessing the air handler’s diagnostics menu provides ready
access to the most recent six faults detected by the air han-
dler. Faults are stored most recent to least recent. Any con-
secutively repeated fault is stored a maximum of three times.
Example: A clogged return air filter causes the air handler’s
motor to repeatedly enter a limiting condition. The control
will only store this fault the first three
consecutive
times the
fault occurs.
NOTE:
It is highly recommended that the fault history be
cleared after performing maintenance or servicing the air
handler
.
17.3 Identification
The identification menu displays the model number, serial
number and control software revision for the equipment. A
model number check will help determine if the equipment
shared data is correct for the unit (if the model number is not
correct for the air handler, a memory card will be required to
load the proper data).
Submenu Item
Indication (for Display Only; not User Modifiable)
Model Number (MOD NUM) Displays the air handler model number
Serial Number (SER NUM)
Displays the air handler serial number (Optional)
Software Version
(SOFTWARE)
Displays the application software revision
IDENTIFICATION
ADVANCED FEATURES IDENTIFICATION MENU CHART
Submenu Item
Indication/User
Modifiable Options
Comments
Fault 1 (FAULT #1)
Most recent fault
For display only
Fault 2 (FAULT #2)
Next most recent fault
For display only
Fault 3 (FAULT #3)
Next most recent fault
For display only
Fault 4 (FAULT #4)
Next most recent fault
For display only
Fault 5 (FAULT #5)
Next most recent fault
For display only
Fault 6 (FAULT #6)
Least recent fault
For display only
Clear Faults (CLEAR)
NO or YES
Selecting “YES” clears
the fault history
NOTE:
Consecutively repeated faults are show n a maximum of 3 times
DIAGNOSTICS
ADVANCED FEATURES DIAGNOSTICS MENU CHART
