York, Coleman, and Luxaire furnaces are the same Johnson Controls equipment under three shields, and they fail in the same predictable SoCal pattern as any gas furnace — with one York-specific cohort issue worth knowing. This page is the York-specific companion to our general furnace repair service and our York brand overview.
Common York furnace failures, by model
- Hot-surface ignitor wear — the most common no-heat call. Blower runs, no flame. $245–$485 installed.
- Flame-sensor fouling — the furnace lights, then shuts down after 3–7 seconds because a dust-coated sensor cannot prove flame. Clean or replace, $185–$295.
- TM9V 2012–2016 ignition-control-board cold joints — the York-specific cohort failure: intermittent ignition that clears when the board cools. Full board replacement, $385–$685.
- Draft-inducer motor failure on TM9V furnaces in years 8–12 — a pressure or venting code. $580–$1,100.
- ECM / PSC blower motor failure on TM9V and older TM8V furnaces. $485–$895.
- Pressure-switch and venting faults — a clogged condensate trap or sagging vent. Diagnosed at the $89 visit.
The TM9V board trap
This is the furnace-side repair that separates a York-savvy tech from a generalist. The integrated control board on 2012–2016 TM9V variable-speed furnaces develops micro-cracks in the solder joints around the hot-surface-igniter relay, from years of thermal cycling. The symptom is intermittent ignition failure that clears itself by the time the technician arrives — the board cools, the joint reconnects, and the furnace fires normally during the service call. A contractor who does not know this cohort will replace the igniter, then the flame sensor, then the gas valve, and never solve it, because none of those is the fault. The fix is a full control-board replacement, $385–$685. We test for it deliberately on any intermittent-ignition TM9V from that window.
Reading the York LED code
York furnaces report faults on a control-board LED that flashes green, amber, or red, viewed through the access panel. Green is normal status; amber covers normal call states and soft airflow/vent warnings (a rapid amber flash means low flame sense — clean or replace the sensor); red is a hard fault you count. Two red is a pressure switch stuck closed, three red is a pressure switch stuck open, four red is an open high-limit or 24V fuse, and seven red is an ignition lockout. The exact map can vary slightly by board generation, so the legend on the blower door is the authoritative key — we read it against that legend and confirm on the meter. The full reference is on our York error codes page, and the airflow chain is in our furnace short-cycling guide.
Why York furnaces fail when they do in SoCal
An LA-basin furnace runs 200–500 hours a year against 1,500-plus in a cold climate. That long idle stretch from April to October is where the trouble breeds: dust cakes the flame sensor, the ignitor ages without being exercised, inducer bearings stiffen, and the TM9V board solder joints cycle through expansion and contraction. The first November cold snap then asks an untouched furnace to fire cleanly, and the predictable failures surface at once. Mountain installs in Big Bear and Wrightwood run real heating hours and fail on a different curve. Either way, fall maintenance in October is the cheapest insurance; the cold-air and ignition chains are walked through in our furnace blowing cold air, furnace ignitor failure, and pilot light won’t stay lit guides.
York furnace repair pricing
Flat-rate, parts and labor, from our SoCal service tickets. Diagnostic is $89 ($149 after-hours), credited to the repair if you proceed:
| York furnace repair | Typical cost |
|---|---|
| Diagnostic (waived with repair) | $89 / $149 after-hours |
| Hot-surface ignitor | $245–$485 |
| Flame sensor (clean or replace) | $185–$295 |
| Gas valve | $385–$685 |
| Ignition control board (TM9V) | $385–$685 |
| Blower motor | $485–$895 |
| Draft inducer motor (TM9V) | $580–$1,100 |
| Heat exchanger (crack — we quote replacement) | $1,500–$3,500 |
York heat exchangers on TM9V and TM8V furnaces carry a 20-year limited warranty to the original owner; other parts are 10 years when registered within 90 days. Labor is separate. We look up registration before ordering.
Repair or replace your York furnace
Under 10 years old with a repair under roughly a third of replacement cost, repair it — an ignitor, flame sensor, inducer, or TM9V board on a furnace with cabinet and heat-exchanger life left is well worth fixing. Over 15 years, or any age with a cracked heat exchanger, replace it: a cracked exchanger is a carbon-monoxide path, and we red-tag and shut the gas before leaving. We give you the repair figure and a written replacement quote side by side. See furnace installation when replacement is the call, and our honest framing on furnace repair vs. replace.
Coleman and Luxaire furnaces
Coleman and Luxaire furnaces are the same Johnson Controls equipment under different shields — same integrated control board, gas valve, inducer, and ignition components, cross-referencing one-to-one, including the TM9V-equivalent board cohort behavior. We service all three with the same meters and warranty channels. For the cooling side of a York system, see York AC repair, a no-heat walkthrough on York furnace not heating, and the full lineup on our York brand page.