FieldBench
Models
Goodmanac

GXV9S

Inverter · communicating · up to 19 SEER2

Goodman variable-speed inverter air conditioner (GXV9S / GXV6S; older badge GSXV9). Outdoor drive + ComfortBridge when paired with a communicating indoor. No reversing valve. Charge is weigh-in + line-set — not a GSX16 piston chart.

Not GSXC18 (two-stage scroll, not an inverter). Not GLXS4B (R-32 contactor). Not GSZC / DZ20VC heat pump (RV + defrost). Not a furnace E-code.

Diagnose this modelInstall notesBoard cross-refField wiring

Drive

Inverter scroll · variable capacity

Bus

ComfortBridge data pair, or 24V depending on indoor

Charge

Weigh-in + line-set adder. Superheat is not the charge method.

Sister SKU

GXV6S 17.2 SEER2 cousin · Amana AXV9S / AXV6S

This board

Outdoor inverter + ComfortBridge

  • Codes live on the outdoor drive / display. Indoor E2 is a different box.
  • Comm / U-style codes are valid only on a ComfortBridge indoor (GMVC / AVPTC). On 24V Y they mean a miswire.
  • No contactor slam and no dual-cap FAN/HERM story. If you are holding a dual cap, you are on GSX16 / GLXS4B.

Outdoor display before the disconnect. Disconnect clears live.

Universal swap

No universal

Goodman GXV9S outdoor. No furnace IFC universal. Replace the OEM outdoor control / contactor / drive by the silk.

Silk: GXV9S

White-Rodgers

—

ICM

—

Honeywell

—
  • Indoor furnace universals (50A55, 50M56U, ICM282B, ICM2811, S9200U). This is not an IFC.
  • Do not ‘adapt’ a furnace board to an outdoor inverter, defrost PCB, or contactor.

After you pull the dead card

  1. 1Photograph the outdoor silk. Indoor 50A55 / ICM282B / S9200U do not belong here.
  2. 2Contactor units: replace the contactor / cap / HPS — there is no universal outdoor board.
  3. 3Inverter / communicating outdoors: OEM drive only. There is no White-Rodgers or ICM outdoor universal.

Field wiring

Written landings for Goodman GXV9S. Not a factory schematic.

ComfortBridge inverter AC
1/2 data — or 24V YR-410A

GXV9S / AXV9S / GSXV class. Outdoor drive, no reversing valve. Communicating indoor on 1/2. 24V indoor gets Y and C only.

Written circuit description only — FieldBench does not redraw maker schematics. Example: R to W closes on a heat call; verify 24V at W1 before you change the IFC.

Open manufacturer PDF

This indoor

GMVC / AVPTC = 1/2. GR9T96 = Y and C. No dual cap.

ComfortBridge indoor

GMVC / AMVC / AVPTC requesting capacity on 1/2.

ComfortBridge pair

Indoor 1 and 2 to outdoor 1 and 2. Polarity matters. This is not 24V Y.

  • 1DataData
  • 2DataData

Outdoor line — inverter drive

208/230 into the drive. No contactor slam. DC bus can stay live after the disconnect.

  • L1Line to the driveLine
  • L2Line to the driveLine
  • GNDEquipment groundLine

Landing

  • DataIndoor 1/2outdoor 1/2

    Data. Capacity is serial.

  • LineL1 / L2drive

    208/230. No contactor.

24V indoor

GR9T96 / AR9T96 / any conventional Y.

Wall thermostat

Conventional 24V. One cool stage.

  • R24V hot from indoor transformer24V
  • C24V common24V
  • YCool call — one stage24V
  • GIndoor fan24V
  • WHeat. Stays at the indoor.24V

Indoor IFC / AHU

Y in from the stat. Y out to the outdoor contactor. Same transformer.

  • RTransformer hot — feeds the stat24V
  • CTransformer common — must reach the outdoor24V
  • YStat Y in24V
  • YoutTo outdoor contactor coil24V
  • GBlower / cool tap24V
  • WHeat only24V

Outdoor — contactor coil

Y is a call to the drive, not a contactor coil you listen for.

  • YContactor coil. ~24 VAC to C under a call.24V
  • CContactor coil common24V

Outdoor line — inverter drive

208/230 into the drive. No contactor slam. DC bus can stay live after the disconnect.

  • L1Line to the driveLine
  • L2Line to the driveLine
  • GNDEquipment groundLine

Landing

  • 24VStat Yindoor Youtdoor Y

    ~24 VAC call. Drive ramps. No slam.

  • 24VC throughout

    Common

Prove it

  • Drive LEDs / display. There is no contactor to chase.
  • Charge is weigh-in + line-set.

Do not

  • Do not throw a dual run cap.
  • Do not ohm a defrost sensor. That is GSZC / ASZC.

Same 1/2 pair as GSXC18. The outdoor is a drive, not a two-stage scroll board.

Sequence

  1. 1

    Call

    Indoor requests capacity (data pair or 24V). Outdoor inverter ramps. No contactor pull-in.

  2. 2

    Protect

    HPS / LPS and drive overcurrent park the inverter. There is no defrost path — this is AC-only.

Faults on this IFC

Step 1, then 2, then 3. Expected reading and the fail branch sit under each check.

Comm

ABCD / outdoor drop

lockout

Drive or bus. Wall control loses the outdoor.

  1. 1 Let it cool, then read the drive LED

    On Goodman GXV9S overcurrent / overheat is often a dirty coil, a failed OD fan, or a locked compressor — not a dead inverter. Clear airflow, confirm the OD fan, and read the drive LED before you order a control. ABCD landing and polarity, outdoor board power, inverter comms harness.

    Expect: OD fan running. Coil clean. Drive LED decoded from THIS outdoor’s card.

  2. 2 Voltage and compressor windings

    Incoming voltage in range (this plate’s line-voltage code). Compressor windings even, no ground. A shorted compressor will kill a new drive. C still required at the wall control.

    Expect: Balanced windings. No winding to ground. Line voltage stable under load.

  3. 3 Charge and the drive last

    A starved or flooded compressor will overcurrent. Confirm SH/SC and charge weight. Only then condemn the inverter. Indoor must be Infinity-capable. A 24ACC6-style indoor pairing is the wrong mental model.

    Expect: Charge on the nameplate. Drive code gone after a cool-down and a clean coil.

HPS / LPS

Pressure protection

lockout

Still real on an inverter.

  1. 1 Let it cool, then read the drive LED

    On Goodman GXV9S overcurrent / overheat is often a dirty coil, a failed OD fan, or a locked compressor — not a dead inverter. Clear airflow, confirm the OD fan, and read the drive LED before you order a control. Coil, fan, charge by weigh-in — you do not ‘top off’ a Greenspeed.

    Expect: OD fan running. Coil clean. Drive LED decoded from THIS outdoor’s card.

  2. 2 Voltage and compressor windings

    Incoming voltage in range (this plate’s line-voltage code). Compressor windings even, no ground. A shorted compressor will kill a new drive. Outdoor fan that is actually the inverter-driven fan, not a dual-cap PSC motor.

    Expect: Balanced windings. No winding to ground. Line voltage stable under load.

  3. 3 Charge and the drive last

    A starved or flooded compressor will overcurrent. Confirm SH/SC and charge weight. Only then condemn the inverter. Do not use 24ACC6 piston superheat as the pass/fail.

    Expect: Charge on the nameplate. Drive code gone after a cool-down and a clean coil.

Inverter

Drive overcurrent / overheat

lockout

L5/L4-class faults on the drive.

  1. 1 Let it cool, then read the drive LED

    On Goodman GXV9S overcurrent / overheat is often a dirty coil, a failed OD fan, or a locked compressor — not a dead inverter. Clear airflow, confirm the OD fan, and read the drive LED before you order a control. Compressor to ground, heat sink, supply voltage. Weigh-in vs nameplate.

    Expect: OD fan running. Coil clean. Drive LED decoded from THIS outdoor’s card.

  2. 2 Voltage and compressor windings

    Incoming voltage in range (this plate’s line-voltage code). Compressor windings even, no ground. A shorted compressor will kill a new drive. These L-codes do not exist on 24ACC6. If you are looking at a contactor, you are on the wrong outdoor.

    Expect: Balanced windings. No winding to ground. Line voltage stable under load.

  3. 3 Charge and the drive last

    A starved or flooded compressor will overcurrent. Confirm SH/SC and charge weight. Only then condemn the inverter.

    Expect: Charge on the nameplate. Drive code gone after a cool-down and a clean coil.

Workflows

Silent GXV9S, indoor calling

Furnace/AH blowing, outdoor not ramping.

  1. 1 Prove the call and the live code

    Outdoor powered? Drive LEDs / 7-seg? There is no contactor to listen for.

    Expect: Write whatever Outdoor inverter + ComfortBridge is showing. Outdoor display before the disconnect. Disconnect clears live.

    If fail: No call at the IFC → stat / harness. Do not change gas parts.

  2. 2 Isolate the first failed step in the sequence

    ComfortBridge indoor (GMVC / AVPTC) = data pair. GR9T96 / GR9S96 = 24V only — land Y, not data.

    Expect: Protect: HPS / LPS and drive overcurrent park the inverter. There is no defrost path — this is AC-only.

  3. 3 Confirm with a number, then the next part

    Charge is recover and weigh. Do not ‘add a pound’ like a GSX16. This is not GSZC. There is no RV and no defrost sensor.

    Expect: Charge: Recover and weigh. Nameplate + ounces/ft. Not piston SH. · ABCD: Communicating to the Infinity indoor / 59MN7 family. D is not Y.

    If fail: Stay on this plate. The out-of-range reading is the part.

    If pass: Reading in range → the next step in this workflow is the repair.

Test points

Charge

Recover and weigh. Nameplate + ounces/ft. Not piston SH.

ABCD

Communicating to the Infinity indoor / 59MN7 family. D is not Y.

Drive

Inverter LEDs / last fault. No contactor coil 24 VAC test.

Gotchas

  • GSXV9 on an older invoice is this family. GXV9S is the current badge.
  • Amana AXV9S is the twin. Daikin DC9VS / FIT is a different inverter cabinet.

Related plates

Install this plate

Install Goodman GXV9S as Inverter · communicating · up to 19 SEER2.

Inverter · communicating · up to 19 SEER2

This plate — not the sister SKU

  • Not GSXC18 (two-stage scroll, not an inverter). Not GLXS4B (R-32 contactor). Not GSZC / DZ20VC heat pump (RV + defrost). Not a furnace E-code.
  • GSXV9 on an older invoice is this family. GXV9S is the current badge.
  • Amana AXV9S is the twin. Daikin DC9VS / FIT is a different inverter cabinet.

Control on this outdoor

  • Codes live on the outdoor drive / display. Indoor E2 is a different box.
  • Comm / U-style codes are valid only on a ComfortBridge indoor (GMVC / AVPTC). On 24V Y they mean a miswire.
  • No contactor slam and no dual-cap FAN/HERM story. If you are holding a dual cap, you are on GSX16 / GLXS4B.

Hardware

  • Drive: Inverter scroll · variable capacity
  • Bus: ComfortBridge data pair, or 24V depending on indoor
  • Charge: Weigh-in + line-set adder. Superheat is not the charge method.
  • Sister SKU: GXV6S 17.2 SEER2 cousin · Amana AXV9S / AXV6S

First fire

  1. 1Outdoor powered? Drive LEDs / 7-seg? There is no contactor to listen for.
  2. 2ComfortBridge indoor (GMVC / AVPTC) = data pair. GR9T96 / GR9S96 = 24V only — land Y, not data.
  3. 3Charge is recover and weigh. Do not ‘add a pound’ like a GSX16.
  4. 4This is not GSZC. There is no RV and no defrost sensor.

Do not on Goodman GXV9S

  • Not GSXC18 (two-stage scroll, not an inverter). Not GLXS4B (R-32 contactor). Not GSZC / DZ20VC heat pump (RV + defrost). Not a furnace E-code.
  • GSXV9 on an older invoice is this family. GXV9S is the current badge.
  • Amana AXV9S is the twin. Daikin DC9VS / FIT is a different inverter cabinet.

Maker literature

FieldBench does not host manufacturer files. Each link opens the maker’s own literature page in a new tab.

  • Goodman literature libraryLiterature searchSearch the exact plate (GR9T960804CN, GR9S960603BN). Full I/O PDFs are often dealer-gated.Open manufacturer PDF
  • Goodman literature libraryLiterature searchSearch Goodman GXV9S on the maker’s literature page.Open manufacturer PDF

Warranty and bulletins

Affected models, serial range, symptom, remedy, date. Maker files open on the manufacturer site.

All bulletins

  • Dealer portals

    dealer

    Where remaining service letters live

    Current-year service letters not on a public literature page · Maker dealer portal

    Open factsOpen manufacturer PDF