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Goodman · Air handler troubleshooting

Blower not running - R-32 AMST/AWSF EEM air handler

What is going on

Indoor blower (EEM/constant-torque motor) does not start on a fan, cooling or heat call.

Likely causes

  • No 240 V at the motor
  • No 24 V signal to a motor tap
  • Failed motor or motor module

Check in this order

  1. Warning: Disconnect power before handling motor connectors.
  2. Measure about 240 V across L and N at the motor; if missing, check breaker, fuses and wiring.
  3. Measure 24 V from C to the active speed tap (T1-T5 / T6-T9 or 1-5 depending on model); if missing, confirm the thermostat is calling for fan and check the low-voltage fuse and wiring.
  4. With both line voltage and 24 V present and no rotation, the motor (or its module) has failed - replace it.
  5. When fitting a new motor, keep the belly band clear of the motor vents and form a drip loop in the wiring.

Applies to: R-32 AMST, AWSF/AWST, ACSF air handlers with EEM blower

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Source: Goodman RS6200301 R-32 GLXS/ALXS/GLZS/ALZS service (07-2024), Air Handler EEM Motor flowchart p.47; Checking High Efficiency Motors p.27. Written in our own words; check the manual for your exact model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.