close
close

HVAC Parts

Filter:
  • Lennox 33M70 Draft Inducer Motor Assembly Kit

    Lennox

    Lennox 33M70 Draft Inducer Motor Assembly Kit

    $636.05

    Lennox 33M70 Replacement PartIncludes:(1) - Draft Inducer Motor Assembly (33M70)(1) - Gasket (-)(3) - Hex-Head Sheet Metal Screw (-)SpecificationsManufacturer: FascoModel # 702111231Fasco Motor Type: U21BVoltage: 208-230Hertz: 60Amperage: 0.83RPM:...

  • Lennox

    Lennox 33W23 Wire Harness

    $36.66

    Lennox 33W23 Replacement PartIncludes:(1) - Wire Harness (33W23)Replaces Old Lennox Part Numbers101551-03Replaces Old Allied, Armstrong, Concord, Ducane Part Numbers:There are no older part numbers.Other Part Numbers101551-03 Harness-Wiring for Blower...

  • Lennox

    Lennox 33W86 Limit Switch

    $28.68

    Lennox 33W86 Replacement PartIncludes:(1) - Limit Switch (33W86)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers100847-07 Control-Limit Spst 175F CloseFits Models:(Press ctrl + F to find model number below.)Various...

  • Lennox 33W96 Condenser Repair Coil

    Lennox

    Lennox 33W96 Condenser Repair Coil

    $934.63

    Lennox 33W96 Replacement PartIncludes:(1) - Condenser Repair Coil (33W96)SpecificationsManufacturer: LennoxManufacturer Part #: LB-87170DKHeight: 28-1/4"Length: 23"Width: 23"Other Part Numbers5824N34933, 8-7386D, Lennox,

  • Lennox 34K76 Blower Motor

    Lennox

    Lennox 34K76 Blower Motor

    $642.27

    Lennox 34K76 Replacement PartIncludes:(1) - Blower Motor (34K76)SpecificationsManufacturer: US MotorsModel # K55HXEKD-7375Horsepower: 1/3Voltage: 208-230Hertz: 60Amperage: 1.73Phase: SingleRPM: 825Speeds: 3Frame: 48YThermally ProtectedInsulation Class:...

  • Lennox 36A75 Fan Motor

    Lennox

    Lennox 36A75 Fan Motor

    $665.59

    Lennox 36A75 Replacement PartIncludes:(1) - Fan Motor (36A75)SpecificationsManufacturer: US MotorsManufacturer Part # K55HXMGM-6379Brake Horsepower: 1/3Voltage: 208-230Hertz: 60Amperage: 2.0Phase: SingleRPM: 1075Speeds: 2Frame: 48YThermally...

  • Lennox 36G80 Fan Blade

    Lennox

    Lennox 36G80 Fan Blade

    $159.71

    Lennox 36G80 Replacement PartIncludes:(1) - Fan Blade (36G80)SpecificationsNumber of Blades: 3Diameter: 24"Bore: 1/2"Pitch: 20°Set Screws: 1Replaces Old Lennox Part Numbers36G8001Replaces Old Allied, Armstrong, Concord, Ducane Part Numbers:36G8001Other...

  • Lennox

    Lennox 36K56 Type B Solid 80Deg Steel Oil Nozzle 0.65 Gph

    $31.72

    Lennox 36K56 Replacement PartIncludes:(1) - Type B Solid 80Deg Steel Oil Nozzle 0.65 Gph (36K56)Replaces Old Lennox Part NumbersThere are no older part numbers.Fits Models:(Press ctrl + F to find model number below.)Various. (Call 734-326-3900 with your...

  • Lennox 38K30 Blower Housing

    Lennox

    Lennox 38K30 Blower Housing

    $992.17

    Lennox 38K30 Replacement PartIncludes:(1) - Blower Housing (38K30)SpecificationsBlower Opening: Length: 19"Width: 16"Replaces Old Lennox Part Numbers54K76LB-89288ALB-89288EOther Part NumbersT007283125, blower housing

  • Lennox 38M74 Thermal Expansion Valve

    Lennox

    Lennox 38M74 Thermal Expansion Valve

    $153.51

    Lennox 38M74 Replacement PartIncludes:(1) - Thermal Expansion Valve (38M74)(1) - Mounting Kit (-)SpecificationsInlet: 1/2"Outlet: 5/8"Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers150839-007, Valve-Exp (R410A) Nom...

  • Lennox 39F95 Flame Sensor

    Lennox

    Lennox 39F95 Flame Sensor

    $160.18

    Lennox 39F95 Replacement PartIncludes:(1) - Flame Sensor(1) - Instructions (BASO-INS-Y75, Rev. B)SpecificationsElement Length: 1"Replaces Old Lennox Part Numbers37C5137C510139F9501Replaces Old Allied, Armstrong, Concord, Ducane Part...

  • Lennox 39M84 Fan Blower Control Board

    Lennox

    Lennox 39M84 Fan Blower Control Board

    $552.07

    Lennox 39M84 Replacement PartIncludes:(1) - Fan Blower Control Board (39M84)SpecificationsManufacturer: HoneywellManufacturer Part # ST9103A1069Board Dimensions (LxW): 6 3/4" x 4 1/2"Replaces Old Lennox Part Numbers39M8401Replaces Old Allied, Armstrong,...

  • Lennox

    Lennox 39W68 100679-10 Valve-Expansion (R410)

    $175.73

    Lennox 39W68 Replacement PartIncludes:(1) - 100679-10 Valve-Expansion (R410) (39W68)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers100679-10Fits Models:(Press ctrl + F to find model number below.)Various. (Call...

  • Lennox

    Lennox 39W72 100679-14 Valve-Expansion (R410)

    $155.51

    Lennox 39W72 Replacement PartIncludes:(1) - 100679-14 Valve-Expansion (R410) (39W72)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers100679-14Fits Models:(Press ctrl + F to find model number below.)Various. (Call...

  • Lennox

    Lennox 40W08 101018-02 Control-Ignition

    $231.71

    Lennox 40W08 Replacement PartIncludes:(1) - 101018-02 Control-Ignition (40W08)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers101018-02Fits Models:(Press ctrl + F to find model number below.)Various. (Call 734-326-3900...

  • Lennox 41K35 Gas Valve

    Lennox

    Lennox 41K35 Gas Valve

    $457.21

    Lennox 41K35 Replacement PartIncludes:(1) - Gas Valve (41K35)SpecificationsManufacturer: HoneywellModel # VR8204H1048Opening: SlowIgnition Type: Direct Spark or Intermittent PilotVoltage: 24Hertz: 60Amperage: 0.5Factory Regulator Pressure Set To: 3.5" W...

  • Lennox 41K37 Gas Valve

    Lennox

    Lennox 41K37 Gas Valve

    $569.18

    Lennox 41K37 Replacement PartIncludes:(1) - Gas Valve (41K37)SpecificationsManufacturer: HoneywellModel # VR8204H8019Ignition Type: Dual Intermittent PilotApplication: Single StageGas Type: Natural Gas or LP (Conversion Kit NOT Included)Opening...

  • Lennox 41L28 Blower Wheel Shaft Key

    Lennox

    Lennox 41L28 Blower Wheel Shaft Key

    $64.56

    Lennox 41L28 Replacement PartIncludes:(1) - Blower Wheel Shaft Key (41L28)SpecificationsLength: 4 1/2"Material: Steel🔧 Note: Always check the blower wheel on your blower assembly. Bad or unbalanced blower wheels can cause premature motor failure...

  • Lennox 41W13 Dual Run Capacitor

    Lennox

    Lennox 41W13 Dual Run Capacitor

    $68.68

    Lennox 41W13 Replacement PartHelpful DIY Advice: How to tell if You have a bad air conditioner capacitor and how to test and replace it.Includes:(1) - Dual Run Capacitor (41W13)SpecificationsShape: RoundMicrofarad: 50 + 7.5Voltage: 370Replaces Old Lennox...

  • Lennox 42F49 Blower Motor

    Lennox

    Lennox 42F49 Blower Motor

    (1)

    $1,471.15

    Lennox 42F49 Replacement PartIncludes:(1) - Blower Motor (42F49)SpecificationsManufacturer: US MotorsModel # K55HXEEF-716Horsepower: 1/6Voltage: 208-230Hertz: 60Amperage: 2.0Phase: SingleRPM: 1075Speeds: 3Frame: 48YThermally ProtectedInsulation Class:...

  • Lennox

    Lennox 42W36 100679-23 Valve-Expansion (R410)

    $185.60

    Lennox 42W36 Replacement PartIncludes:(1) - 100679-23 Valve-Expansion (R410) (42W36)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers100679-23Fits Models:(Press ctrl + F to find model number below.)Various. (Call...

  • Lennox 43G10 Blower Motor

    Lennox

    Lennox 43G10 Blower Motor

    $741.79

    Lennox 43G10 Replacement PartIncludes:(1) - Blower Motor (43G10)SpecificationsManufacturer Part NO: K55ZZESA-7493Horsepower: 3/4Voltage: 115Hertz: 60RPM: 1075Speeds: 3Amperage: 9.5Phase:1Frame: 48YThermally Protected Insulation Class: B🔧 Note:...

  • Lennox 43G52 Blower Motor

    Lennox

    Lennox 43G52 Blower Motor

    $727.80

    Lennox 43G52 Replacement PartIncludes:(1) - Blower Motor (43G52)SpecificationsManufacturer: InterlinkModel # YSLB-600-6-B001Horsepower: 3/4Voltage: 460Hertz: 60Amperage: 2.2Phase: SingleRPM: 1075Speed: 3Thermally ProtectedInsulation Class: BMotor...

  • Lennox 43J57 Draft Inducer Motor Assembly

    Lennox

    Lennox 43J57 Draft Inducer Motor Assembly

    $900.42

    Lennox 43J57 Replacement PartIncludes:(1) - Inducer Assembly (43J57) (1) - Replacement Inducer Gasket (50J77)(3) - #10-32 x 3/4" Screws (-)(1) - Installation Instructions (502,931M)SpecificationsManufacturer: FascoModel Number: 7121-8774Fasco Motor Type:...

  • Lennox 43J58 Draft Inducer Motor Assembly

    Lennox

    Lennox 43J58 Draft Inducer Motor Assembly

    $760.46

    Lennox 43J58 Replacement PartIncludes:(1) - Inducer Assembly (43J58)(1) - Gasket (50J77)(3) - #10-32 x 3/4" Screws (-)(1) - Installation instructions (502,931M)SpecificationsManufacturer: Fasco Model Numbers: 7121-8774 Fasco Motor Type: U21BVoltage:...

  • Lennox 43K69 Spark Wire Harness

    Lennox

    Lennox 43K69 Spark Wire Harness

    $25.61

    Lennox 43K69 Replacement PartIncludes:(1) - Spark Wire Harness (43K69)Replaces Old Lennox Part Numbers43K6901Replaces Old Allied, Armstrong, Concord, Ducane Part Numbers:2051610243K6901Fits Models:(Press ctrl + F to find model number below...

  • Lennox 43W85 Draft Inducer Motor Assembly

    Lennox

    Lennox 43W85 Draft Inducer Motor Assembly

    $604.94

    Lennox 43W85 Replacement PartIncludes:(1) - Draft Inducer Motor Assembly (43W85)(2) - Gaskets (-)(1) - 7" Pressure Switch Tube (-)(4) - 1/2" Screws (-)(1) - Installation Instructions (-)SpecificationsManufacturer: FascoModel Number: 702112295Fasco Motor...

  • Lennox 44L48 Flame Sensor

    Lennox

    Lennox 44L48 Flame Sensor

    $31.36

    Lennox 44L48 Replacement PartIncludes:(1) - Flame Sensor (44L48)SpecificationsStyle: LTotal Length: 3"Length to L: 2 1/8Length to End: 7/8"Bracket Length: 7/8"Replaces Old Lennox Part Numbers44L4801Replaces Old Allied, Armstrong, Concord, Ducane Part...

  • Lennox

    Lennox 44W53 102107-02 Collector Box

    $427.66

    Lennox 44W53 Replacement PartIncludes:(1) - 102107-02 Collector Box (44W53)Replaces Old Lennox Part NumbersThere are no older part numbers.Other Part Numbers102107-02Fits Models:(Press ctrl + F to find model number below.)Various. (Call 734-326-3900...

  • Lennox 46K12 Fan Blade

    Lennox

    Lennox 46K12 Fan Blade

    $261.26

    Lennox 46K12 Replacement PartIncludes:(1) - Fan Blade (46K12)SpecificationsManufacturer: RevcorNumber of Blades: 4Diameter: 18"Bore Diameter: 1/2"Replaces Old Lennox Part Numbers4114100146K1201R41141-001Replaces Old Allied, Armstrong, Concord, Ducane...

show more

Can't find what you're looking for?

If you don't see your model or part, call us! Our friendly technicians are standing by. We can help you find the part you need with guaranteed fitment. Speak with us today at (734) 326-3900.

What You Need to Know About HVAC Supply Parts from Technical Hot and Cold Parts

When the temperature outside starts to fluctuate, it's crucial to rely on your heating and cooling systems. Nothing is worse than experiencing a breakdown during a heat wave or frigid temperatures. Technical Hot and Cold Parts understands the importance of keeping your system functioning optimally and offers a comprehensive range of OEM HVAC supply parts to maintain your system's performance throughout the year. Explore our extensive selection of HVAC supply parts and accessories, or contact our specialists to find out what you need to get your system working efficiently again.

 

Air Conditioner Replacement Parts and Accessories

Air conditioner parts are designed for longevity, but they can become damaged or worn and require replacement. Some common parts and accessories you may need for your air conditioner system include:

  • Air Conditioner Drain Products: Drain lines on your AC unit can become clogged and may need replacement or cleaning.
  • Plenums & Filter Boxes: Distribute fresh air into your home.
  • AC Evaporator Coils: Remove heat from the air using refrigerant.
  • Condenser Coils: Hold refrigerant in its liquid form.
  • Compressors: Circulate refrigerant through the system.
  • Refrigerant: Absorbs heat and provides cooled air.
  • Expansion Valves: Remove pressure from the liquid refrigerant, allowing it to turn back into a vapor.
  • Equipment Pads: Support the exterior unit of the system.
  • Dehumidifiers: Remove excess moisture from the air when humidity levels are high.

 

Furnace Repair Parts and Accessories

Many furnace parts work together to ensure proper and efficient operation. Commonly replaced furnace parts include:

  • Pilot Light: Burns constantly to ignite the gas when the furnace turns on.
  • Thermocouple: Detects if the pilot light is on and signals the gas valve to open.
  • Hot Surface Igniter: Replaces the pilot light in newer furnaces.
  • Flame Sensor: Ensures there is heat from the igniter, shutting off gas if not.
  • Gas Valve: Adjusts gas pressure entering the furnace.
  • Burners: Mix gas and air to create a flame.
  • Heat Exchanger: Holds gases when fuel is burned, transferring heat to the surrounding air.
  • Draft Inducer Motor: Expels toxic air formed during combustion.
  • Pressure Switch: Ensures the draft inducer motor is on; otherwise, it stops gas flow.
  • Blower Motor: Pushes warm air through the duct system.
  • Capacitor: Starts and keeps the blower motor running.
  • Vent Kits: Remove toxic gas from the system.
  • Gas Piping: Delivers natural gas to the furnace.
  • Zoning & Dampers: Control where the warm air travels.
  • Humidifiers: Add moisture to reduce dryness in the home.

 

HVAC Supply Parts Replacement and Accessories

HVAC systems utilize many of the same parts and accessories as air conditioner units and furnaces. Additionally, complete HVAC systems include parts such as:

  • Thermostats: Control home temperature by signaling the heat or cooling system.
  • Air Filters: Trap dirt, debris, and allergens, with HEPA filters also trapping bacteria and viruses.
  • Grille Covers: Cover HVAC system return vents.
  • Air Purifiers: Remove small particulates to improve indoor air quality.

 

Heat Pump Repair Parts and Accessories

Heat pumps share components with air conditioning systems and furnaces, such as compressors, condensers, expansion valves, evaporator coils, blower motors, and equipment pads. They also include:

  • Accumulator: Stores refrigerant to prevent imbalance.
  • Crankcase Heater: Prevents refrigerant migration and condensation.
  • Reversing Valve: Controls refrigerant flow direction.

 

Mini-Split Repair Parts and Accessories

Mini-split systems use the same coil parts, fans, and motors as other AC systems in their outdoor unit and also include:

  • Air Handlers: Indoor components delivering cooled or heated air.
  • Copper Tubing: Carries refrigerant from the outdoor unit to indoor handlers.
  • Remote: Controls each air handler.

 

Major Components of HVAC Systems

 

Heating System Components

Heat pumps provide both heating and cooling with three primary components: the condenser, compressor, and evaporator. In heating mode, refrigerant circulates to the heat source as gas, then transitions to liquid before returning to gas to distribute warmed air via the blower motor and ductwork.

 

Furnace Components

Furnaces produce warm air with components responsible for starting, heating, and distributing air. The thermostat signals the gas valve to open, allowing gas flow. The burner heats the heat exchanger, transferring heat to the air, which the blower motor circulates through the ductwork until the thermostat signals to stop.

 

Air Conditioning System Components

Four components work together to deliver cooled air: the evaporator coil absorbs heat and humidity, the compressor pressurizes refrigerant, the condenser coil releases heat, and the expansion valve turns refrigerant into a cold mist, restarting the cooling process.

 

Dual-Function Components

The heat exchanger transfers heat for both heating and cooling, turning heat into cool air for air conditioners and warming indoor air for furnaces.

 

Key HVAC System Parts

HVAC systems combine heating, ventilation, and air conditioning. A complete system includes:

  • Heating System: Natural gas furnace, boiler, or propane system, connected to the water system.
  • Ventilation System: Air handler and ducts carrying air.
  • Cooling System: Air conditioner providing cool air and reducing humidity.

 

Efficiency Ratings and Common HVAC Problems

 

SEER Rating

The Seasonal Energy Efficiency Ratio (SEER) measures an air conditioning system's efficiency, comparing cooling output to energy usage.

 

Common HVAC Issues

  • Dirty Filters: Restrict airflow, straining the system.
  • Pilot/Ignition Problems: Cause delayed ignition or short-cycling.
  • Thermostat Malfunctions: Lead to system start failures.
  • Worn Belts and Bearings: Cause airflow issues.
  • Unusual Noises: Indicate bad bearings or failing motors.
  • Dirty Coils: Reduce efficiency.
  • Blower Problems: Indicate relay or circuit board issues.
  • Leaks: Result from clogged drain lines.

 

Comparing Air Conditioners and Heat Pumps

While both cool homes, only heat pumps can reverse to heat a home by absorbing outside heat and transferring it inside. Air conditioners require a furnace for heating.

 

Common Heating and Cooling Systems

  • Split Systems: Separate heating (furnace) and cooling (AC) units controlled by one thermostat.
  • Packaged Systems: Combined heating and cooling components in one unit, suitable for small spaces.
  • Zoned Systems: Control temperature in different areas with automatic dampers.
  • Ductless Mini-Splits: Exterior system with indoor handlers, requiring no ductwork.

 

Find Your HVAC Parts at Technical Hot and Cold Parts

Make Technical Hot and Cold Parts your go-to source for all your HVAC supply needs. We offer parts from top sellers to keep your system running efficiently. Unsure of what you need? Contact our customer service department to determine the right HVAC supplies for your system.

Worldwide Shipping
Genuine OEM Parts
Secure Shopping
1-Year Returns