System Fault Codes
Display code | Diagnostic Description |
1Long Run Time
2System Pressure Trip
3Short Cycling
4 (L4) | Locked Rotor |
5 (L5) | Open Circuit |
6 (L6) | Open Start Circuit |
|
|
7 (L7) | Open Run Circuit |
9 | Low Secondary Voltage |
11Failed ignition
12Low flame sense current
13Flame lost after established
14Flame present with gas valve off
21 (L21) | Low Pressure Switch Trip |
22Main limit switch open.
23Auxiliary limit switch open
26Line Neutral Reversed
27Check Line Voltage
28High Line Voltage
29 (L29) | High Pressure Switch Trip |
30 | Fuse Open |
33 | MRLC Open |
44Low pressure switch closed, inducer off
45Low pressure switch open, inducer on high speed
46Low pressure switch open, inducer on low speed
55 | High pressure switch closed, inducer off |
57 | High pressure switch open, inducer on high speed |
60Blower Fault Run
61Blower Fault No Run
66 | RPM out of range (over 1200 RPM) |
68 | No Blower Communication |
77Servo circuit open
78Servo control fault
79No Gas Valve Feedback
80Low Airflow
Table of Contents
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Battery Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Quick Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Initial Power Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermostat Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Set Current Time and Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Choose the System Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Energy Saving Factory Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Set Up Thermostat Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using the Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Advanced Installer Configuration
Menu/Service Information . . . . . . . . . . . . . . . . . . . . . . . . 19
Entering and Navigating the Advanced Installer
Configuration Menu/Service Information . . . . . . . . . . . . . . . . . . . . 19
Equipment User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Thermostat User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Furnace User Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Air Handler User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heat Pump User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Air Conditioner User Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
