Instruction manual

WIRING DIAGRAMS
Refer to Fig. 10, 11, and 12 for the 330- and 331-AAV Series C &
D wiring diagrams.
TROUBLESHOOTING
Refer to service label. (See Fig. 13.) The Troubleshooting Guide
can be a useful tool in isolating furnace operation problems.
Beginning with the word “Start,” answer each question and follow
the appropriate arrow to the next item.
The Guide will help you identify the problem or failed component.
After replacing any component, verify correct operation sequence.
—8—