York TM9E furnace slow amber flashing: Normal Heat Call
Info — not a fault
What does a slow amber LED flash mean on a York TM9E furnace? The control is operating normally with a heat call present. This slow amber flash is a status, not a one-flash fault, and does not by itself confirm the burner is lit.
Safe checks before calling
If rooms stay cold with this status, check that the external filter is clean and supply registers and return grilles are open. Note how long the furnace has been running.
Questions about this code
What does a slow amber LED flash mean on a York TM9E furnace?
The control is operating normally with a heat call present. This slow amber flash is a status, not a one-flash fault, and does not by itself confirm the burner is lit.
Does York TM9E furnace slow amber flashing mean I need a repair?
No repair is indicated by this status. If warm air never arrives during a long heat call, book service and describe the run time, because the amber status shows demand, not successful heating.
How much does it cost to fix York TM9E furnace slow amber flashing?
A normal heat-call status implies no repair bill. Costs arise only if a technician is called because the home is not warming despite the call.
Applies to
TM9E
Different York generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Verified against YORK TM9E Series Installation Manual — Single Stage ECM Residential Gas Furnaces, p.33
Verified against User’s Information Manual — All Residential Multi-position Gas Furnaces (33 in. models), p.5
Last verified 2026-10-07 · page updated 2026-10-07 · how we verify
Related York furnace codes
These codes use the same york tm9e single-stage ecm tri-color led control system.