LED will flash the Fault Code History (up to 5 fault codes
from newest to oldest)
NOTE: Fault Code Display Means: Multi-Color LED (Green,
Amber, Red).
Clear Fault Memory
1. Function: When the SW1 button is pressed and held for
an extended period (more than 5 seconds, less than 10
seconds), the control erases the stored fault code history.
2. Operation:
The control must be powered and the
thermostat satisfied (no call for heat or cool). Depress and
hold the SW1 button for at least 5 seconds (but not more
than 10 seconds), until the LED flashes a rapid Green,
then release. The fault code history will be erased.
Component Test
1. Function: When the SW1 button is pressed and held for
an extended period of time (more than 10 seconds, less
than 15 seconds), the control will initiate a component
self test.
2. Operation:
The control must be powered and the
thermostat satisfied (no call for heat or cool). Depress and
hold the SW1 button for at least 10 seconds (but not more
than 15 seconds), until the LED flashes Amber, then
release. The control will execute the following functions:
a. Inducer starts and runs throughout the entire test
b. Hot surface ignitor on for 15 seconds, then off
c. Blower motor will be turned on at constant fan speed, heat
speed, and cool speed for 15 seconds each.
d. Control returns to standby mode.
NOTE: If SW1 button is held for longer than 15 seconds, the
control will remain in standby mode
Wiring Diagrams
Refer to Fig. 38 for wiring diagram.
Troubleshooting
Refer to the service label. (Fig. 35), wiring diagram (Fig. 38), and
the Service Guide (Page 36) can be a useful tool in isolating
furnace operation problems. The Guide will help to identify the
problem or failed component. After replacing any component,
verify correct operation sequence.
Fig. 38 - - Wiring Diagram
35
A180211