Frigidaire Furnace Manual FG6RA

The Frigidaire FG6RA is a high-efficiency gas furnace designed for residential heating applications. This forced-air furnace features variable-speed blower technology, electronic ignition, multiple heat stages, and advanced diagnostic controls. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation Requirements 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Venting and Ductwork 7. Operation Instructions 8. Maintenance Procedures 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Variable-speed ECM blower motor, hot surface igniter, multi-position installation, diagnostic LED, two-stage gas valve, aluminized steel heat exchanger.

FeatureDescription
Variable-speed blowerECM motor for quiet operation and energy efficiency
Two-stage heatingProvides consistent comfort and improved efficiency
Multi-positionCan be installed in upflow, downflow, or horizontal configurations
Hot surface ignitionElectronic ignition for reliable startup
Diagnostic LEDFlashing light indicates system status and error codes
Aluminized heat exchangerDurable construction for long service life
Gas valveTwo-stage operation for precise temperature control
Pressure switchesSafety devices to ensure proper venting
Flame sensorMonitors burner operation for safety
Limit switchesPrevents overheating of heat exchanger

Installation Requirements

Professional installation required. Verify local codes and obtain permits.

  1. Location: Install in dry, clean area with adequate combustion air and service clearance.
  2. Venting: Use approved PVC or metal vent pipe per manufacturer specifications.
  3. Gas supply: Connect to proper gas type (natural gas or propane) with shutoff valve.
  4. Electrical: Connect to 120V AC power with proper grounding.
  5. Ductwork: Ensure properly sized and sealed duct system.

WARNING! Gas appliances can produce carbon monoxide. Proper installation and venting are critical for safety. Installation must comply with all local codes.

First-Time Setup

Initial startup must be performed by qualified technician.

  1. Verify installation: Check all connections, venting, and clearances.
  2. Gas pressure: Adjust manifold pressure to specifications.
  3. Blower speed: Set appropriate CFM for heating operation.
  4. Thermostat: Connect compatible two-stage thermostat.
  5. Test operation: Verify proper ignition sequence and temperature rise.

CAUTION! Never attempt to adjust gas pressure or electrical connections unless qualified. Improper setup can create hazardous conditions.

Specifications

Controls and Settings

Integrated control board with diagnostic capabilities. Access via control panel cover.

Control Board: LED status light, dip switches for configuration, test terminals.

Thermostat Connections: R, C, W1, W2, G, Y1, Y2. Configuration: Blower speeds, heating stages, timing parameters. Diagnostics: LED flash codes indicate system status and fault conditions. Safety Controls: Limit switches, pressure switches, flame sensor, rollout switches.

Venting and Ductwork

Direct vent or conventional venting options available.

  1. Vent Pipe: Use manufacturer-approved materials and sizes.
  2. Clearances: Maintain required clearances to combustibles.
  3. Termination: Proper outdoor termination location and height.
  4. Duct Sizing: Ensure adequate airflow for heating capacity.
  5. Air Filters: Install proper size and MERV rating filters.

Tip: Regular inspection of vent system is essential for safe operation.

Operation Instructions

Normal operation controlled by thermostat.

  1. Thermostat Setting: Set desired temperature on compatible thermostat.
  2. Startup: Furnace will initiate pre-purge, ignition sequence, and burner operation.
  3. Blower Operation: Blower starts after heat exchanger warm-up period.
  4. Staging: First stage operates for moderate heating needs; second stage for extreme cold.
  5. Shutdown: Burners shut off first; blower continues for cool-down period.

WARNING! If you smell gas, immediately shut off gas supply and call qualified service technician. Do not operate furnace until leak is repaired.

Maintenance Procedures

Annual maintenance by qualified technician recommended.

  1. Air Filter: Replace or clean monthly during heating season.
  2. Heat Exchanger: Inspect annually for cracks or damage.
  3. Burners: Clean and inspect for proper flame pattern.
  4. Blower: Clean blower wheel and housing annually.
  5. Vent System: Inspect for obstructions or damage.
  6. Drain System: Clear condensate drain lines and trap.

Care & Cleaning

Turn off power and gas supply before cleaning. Use soft brush and vacuum for interior cleaning.

CAUTION! Never use water or liquid cleaners on electrical components. Keep area around furnace clean and free of combustible materials.

Regulatory Information

UL listed and ANSI certified. Complies with U.S. Department of Energy efficiency standards. Manufactured to meet or exceed industry safety standards. For technical support, contact Frigidaire at 1-800-374-4432 or visit www.frigidaire.com.

Troubleshooting

SymptomPossible CauseCorrective Action
Furnace won't startPower, thermostat, door switchCheck circuit breaker, thermostat setting, ensure door properly closed.
No heatGas supply, ignitionVerify gas valve on, check for ignition attempts, inspect flame sensor.
Short cyclingFilter, limit switchReplace dirty filter, check for restricted airflow, verify proper venting.
Blower won't stopThermostat, control boardCheck thermostat fan setting, inspect control board operation.
Unusual noisesBlower, ductworkInspect blower wheel, check for loose panels, verify duct connections.
LED error codesVarious faultsCount LED flashes and refer to diagnostic chart in service manual.

Reset: Turn power off for 30 seconds, then restore power.

Service: 1-800-374-4432; www.frigidaire.com

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