Goodman Mfg GHS8 Upright Filter Removal, Induced Draft and Circulator Blower Motors, Burners

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Functional Parts List-
Single Stage Gas Valve Natural Gas Orifice Propane Gas Orifice Burner
Hot Surface Igniter Flame Sensor Gas Manifold Ignition Control Blower Mounting Bracket Pressure Switch Pressure Switch Hose Induced Draft Blower Collector Box
Parts are available from your Amana distributor.
• Although only functional parts are shown in the parts list, all sheet metal parts, doors, etc. may be ordered by description.
When ordering any of the listed functional parts, be sure to provide the furnace model, manufacturing, and serial numbers with the order.
XVIII. REPAIR AND REPLACEMENT PARTS
Leave literature packet near furnace.
Review the Owner’s Manual with the homeowner and discuss proper furnace operation and maintenance.
• Cycle the furnace with the thermostat at least three times. Verify cooling and fan only operation.
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CLEANING (QUALIFIED SERVICER ONLY)
1. Shut off electric power and gas supply to the furnace.
2. Remove screws securing manifold to burner bracket. Slightly pull manifold out and away from burner bracket. Burners will drop. Re-secure manifold to burner bracket.
3. Tilt burners to slotted side of burner bracket. Rotate burners clockwise to remove.
4. Use bottle brush to clean burner insert and inside of burner.
5. Replace burner (opposite of removal). Ensure burners are fully seated on burner bracket tabs and are properly aligned.
6. Turn on electric power and gas supply to the furnace.
7. Check furnace for proper operation. Refer to “Operational Checks” section to verify burner flame characteristics.
XVII. BEFORE LEAVING AN INSTALLATION

UPRIGHT FILTER REMOVAL

To remove filters from an external filter rack in an upright upflow installation, follow the directions provided with external filter rack kit.

Clean, wash and dry a permanent filter. When using a metal filter, both sides should be sprayed with a dust adhesive as recommended on adhesive container. Spray adhesives for use with permanent metal filters can be found at some hardware stores. BE SURE AIRFLOW DIRECTION ARROW POINTS TOWARDS THE BLOWER.

Inspect filter. If your dirty filter is the disposable type, replace dirty with the same type and size filter. If your dirty filter is a permanent metal filter, clean as follows:

•Wash, rinse, and dry the permanent filters. Both sides should then be sprayed with a filter adhesive as is recommended on the adhesive container. Many hardware stores stock spray adhesives for use with permanent filters.

•If badly torn or uncleanable, these filters must be replaced by equal size permanent, high velocity filters. Throwaway filters must not be used as replacement for permanent filters. Under normal use, permanent filters should last for several years.

INDUCED DRAFT AND CIRCULATOR BLOWER MOTORS

The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No further lubrication is required. Check motor windings for accumulation of dust which may cause overheating. Clean as necessary.

FLAME SENSOR (QUALIFIED SERVICER ONLY)

Under some conditions, the fuel or air supply can create a nearly invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sense signal. If the flame sense signal drops too low the furnace will not sense flame and will lock out. The flame sensor should be carefully cleaned by a qualified servicer using emery cloth or steel wool. Following cleaning, the flame sense signal should be as indicated in the Specifications Sheet.

IGNITER (QUALIFIED SERVICER ONLY)

If the igniter and the surrounding air are at about 70°F and the igniter wires are not connected to any other electrical components, the resistance of the igniter should not exceed 200 ohms. If it does, the igniter should be replaced.

BURNERS

WARNING

TO PREVENT PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. ELECTRICAL COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. CONTACT A QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE SHOULD DEVELOP.

Periodically during the heating season make a visual check of the burner flames. Turn the furnace on at the thermostat. Wait a few minutes, since any dislodged dust will alter the normal flame appearance. Flames should be stable, quiet, soft and blue with slightly orange tips. They should not be yellow. They should extend directly outward from the burner ports without curling downward, floating or lifting off the ports.

Blower/Box Gasket

Rollout Limit Switch

Auxiliary Limit Switch

Heat Exchanger

Door Switch

Transformer

Blower Wheel

Blower Housing

Blower Cutoff

Blower Motor

Motor Mount Bracket

Capacitor

IO-242C

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Contents Installation & Operating Table of Contents XII. Start-up Procedure and Adjustment XIV. Safety Circuit DescriptionXV. Troubleshooting XVI. MaintenanceII. Safety To the InstallerHomeowner Notice To the OwnerIII. Product Application American National Standards InstituteNational Fire Protection Association CSA InternationalNational Fire Protection Association, Inc IV. Location Requirements and ConsiderationsGeneral Clearances and Accessibility Horizontal InstallationSuspended Furnace Existing Furnace RemovalThermostat Influences Z223.1 Section GeneralEquipment Located in Unconfined Spaces Space, Unconfined Equipment Located in Confined SpacesSpecially Engineered Installations VI. Category I Venting Vertical VentingLouvers and Grilles Model Minimum VentChecklist Summary VII. Exterior Masonry Chimneys Category I Furnaces onlyUpflow Rotated Induced Draft Blower Typical Multiple Flue Clay Tile ChimneyTermination More Than 10 Feet From Ridge, Wall or Parapet Termination 10 Feet Or Less From Ridge, Wall or ParapetCheck 1 Proper Chimney Termination Check 4 Debris in Cleanout Check 7 Complete the InstallationCheck 3 Chimney Crown Condition Check 5 Liner ConditionVIII. Electrical Connections FIX 2 -CHANGE Venting ArrangementsFIX 3 Rebuild the Crown FIX 4 ReliningWiring Harness Integrated Ignition ControlVolt Line Connections Fossil Fuiel ApplicationsTypical Field Wiring 24 VAC Control Circuit Volt Thermostat WiringSetting the Heat Anticipator Heating Heating/Cooling Room ThermostatTwinning IX. GAS Supply and PipingHigh Altitude Derate Pressure Switch Changes Furnace input Kbtu/hr 904BNA does not require a switch changeFiring Rate Propane GAS ConversionGeneral Furnace Layout Upflow InstallationsGAS Piping Connections General Propane Gas Installation Typ Counterflow InstallationsPropane GAS Piping Charts GAS Piping ChecksXI. Sequence of Operation Integrated Ignition Control Circulating AIR and FiltersDuctwork Air White-Rodgers Model 36F22 XII. START-UP Procedure and AdjustmentWhite-Rodgers Model 36G22 White-Rodgers Model 36G22 Measuring Inlet Gas Pressure Alternate MethodGAS Supply Pressure Measurement WHITE-RODGERS 36F22 GAS ValveGAS Manifold Pressure Measurement and Adjustment GAS Input Rate Measurement Natural GAS onlyAdjustment Switches Temperature Rise MeasurementXIII. Operational Checks XV. Troubleshooting XIV. Safety Circuit DescriptionBurner Flame XVI. Maintenance Flame Sensor Qualified Servicer only Igniter Qualified Servicer onlyUpright Filter Removal Induced Draft and Circulator Blower MotorsTroubleshooting Chart Continuously Wiring Diagram for GMS8/GDS8/GHS8 Are Subject to Change Without Notice
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GMS8, GHS8, GDS8 specifications

Goodman Manufacturing, a well-reputed name in the HVAC industry, offers a comprehensive range of heating and cooling solutions. Among their notable products are the GDS8, GHS8, and GMS8 series, each designed to meet diverse customer needs while providing exceptional performance and energy efficiency.

The Goodman GDS8 gas furnace is known for its remarkable efficiency and reliability. Boasting an AFUE (Annual Fuel Utilization Efficiency) rating of up to 80%, the GDS8 converts a significant portion of fuel into usable heat, ensuring lower energy bills for homeowners. This model features a multi-speed blower motor that optimizes airflow, enhancing temperature consistency throughout the home, and reducing noise levels during operation. The GDS8 comes equipped with a durable heat exchanger crafted from high-quality steel, ensuring longevity and optimal heat transfer.

On the other hand, the GHS8 series represents Goodman’s commitment to high-efficiency heating. With an AFUE rating of up to 96%, the GHS8 is engineered for maximum performance. Its two-stage heating system allows for better temperature control, enabling the furnace to operate quietly and efficiently. Another standout feature is the ComfortBridge technology, which enhances the system’s ability to communicate and adapt to the home’s specific heating needs. This feature optimizes energy usage and increases comfort levels in any environment.

The Goodman GMS8 model is an exceptional choice for homeowners looking for a reliable gas furnace with a focus on energy efficiency. Similar to its counterparts, the GMS8 also delivers an AFUE of up to 96.5%. This unit features an advanced modulating gas valve that adjusts heating output based on the temperature requirements, creating a consistent and comfortable indoor climate. The GMS8 is also equipped with a high-efficiency ECM blower motor, which reduces energy consumption while improving airflow.

All three models feature Goodman’s quality construction, including a heavy-gauge cabinet that minimizes noise and enhances durability. They also are backed by Goodman’s limited lifetime warranty on the heat exchanger and a 10-year limited warranty on parts, providing customers with peace of mind regarding their investment. These furnaces are designed with efficiency and comfort in mind, making the GDS8, GHS8, and GMS8 ideal choices for homeowners looking to enhance their indoor environment while keeping energy costs in check.
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