No-heat is the call that defines a SoCal winter: the furnace ran fine in March, sat idle all summer, and now refuses to fire on the first cold night in November. The good news is the failures are predictable and most are inexpensive single-visit fixes. This page is the Goodman-specific companion to our general furnace repair service and our Goodman furnace repair page. Common failure modes have dedicated guides: ignitor replacement, flame sensor, won’t ignite, limit switch, pressure switch, inducer motor, and gas valve.
Why a Goodman furnace stops heating
From years of Goodman and Amana no-heat calls across SoCal, the causes cluster in a predictable order:
- Hot-surface ignitor wear — the most common no-heat fault. The silicon-nitride ignitor degrades over hundreds of cycles and eventually cracks. Symptom: blower and inducer run, no flame; after repeated tries, a 1-flash ignition lockout. $245–$485 installed.
- Flame-sensor fouling — the furnace lights, then shuts down after 3–7 seconds because a dust-coated sensor cannot prove flame to the board. Clean or replace, $185–$295.
- Draft / pressure-switch fault — the inducer cannot prove safe venting, so ignition never starts. Often a clogged condensate trap or a weak inducer on a GMSS96 or GCSS96 (a 2- or 3-flash code).
- Integrated control-board failure — frequently after a Santa Ana voltage transient. $480–$950.
- Gas-valve failure — less common, $385–$685.
- ECM blower motor failure on the air-handling side, $480–$890.
Read the Goodman LED code first
Goodman and Amana furnaces report faults on a single red diagnostic LED on the integrated control board, viewed through the sight glass on the access panel. A steady-on LED is normal standby; a slow steady flash is a normal call for heat; a repeating numbered pattern is a fault you count. A 1-flash is an ignition lockout (auto-resets after about an hour), a 2- or 3-flash is a pressure-switch fault, and a 4-flash is an open high-limit from restricted airflow. The exact map can vary by control-board revision, so the legend printed inside the access panel is the authoritative key for your unit — we read it against that legend and confirm on the meter. The full reference is on our Goodman error codes page. Do not keep resetting a furnace that locks out repeatedly; a lockout is a safety response, not a glitch.
The first-cold-night pattern
An LA-basin furnace runs 200–500 hours a year against 1,500-plus in a cold climate, and that long idle stretch from April to October is where no-heat breeds. Dust settles on the flame sensor, the ignitor ages without being exercised, inducer bearings stiffen, and control-board capacitors drift. The first November cold snap asks an untouched furnace to fire cleanly, and the predictable failures surface all at once. Mountain installs in Big Bear and Wrightwood run real heating hours and fail on a different curve — more wear, fewer idle-related faults. Either way, fall maintenance in October is the cheapest insurance; the cold-air and ignition chains are in our furnace blowing cold air and furnace ignitor failure guides, and older standing-pilot units are covered in pilot light won’t stay lit.
Goodman no-heat 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:
| Goodman 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 |
| Blower motor (ECM) | $480–$890 |
| Integrated control board | $480–$950 |
| Draft inducer motor (GMSS96 / GCSS96) | $580–$1,100 |
| Heat exchanger (crack — we quote replacement) | $1,500–$3,500 |
Goodman heat exchangers carry a long limited warranty (lifetime to original registered owner on many furnaces); other parts are warranty-covered when registered. Labor is separate. These are the same flat rates on our Goodman furnace repair page.
Repair or replace your Goodman furnace
Under 10 years old with a repair under roughly a third of replacement cost, repair it — an ignitor or inducer on a GMSS96 at year 9 has plenty of cabinet and heat-exchanger life left. Because a value-tier Goodman furnace is cheaper to replace than a premium one, a big-ticket repair on a 12-plus-year unit tips toward replacement sooner. 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.
Amana furnaces
Amana and Goodman furnaces are the same equipment family under the same parent — same integrated control board, gas valve, ignitor, and inducer, cross-referencing to the same parts and the same no-heat diagnosis and LED chart. We service both with the same meters and warranty channels. For the cooling side of a Goodman system, see Goodman AC repair, and the full lineup on our Goodman brand page.