The variable speed furnace control was designed with diagnostic
capabilities built in. An AMBER LED is used to flash a status
code, which will lead you to one of the sections as listed in the
Index.
You should ALWAYS begin in the START HERE section (see
Index for page number), which will guide you to the appropriate
section where a minimal number of steps will be used to correct
the problem. Once in a section, read the ACTION. An ACTION
may have a number in the GO TO column. Do whatever the
ACTION says, then proceed to the step indicated in the GO TO
column.
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