Name: Flame Sensor
Brand: Carrier
SKU: i2347738
Price: 25.16 USD
Availability: InStock

Furnace flame sensor. The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, the furnace may not heat.

Flame Sensor

The Frigidaire Oven Burner Igniter 5303935066 is a high-quality replacement part that ignites the gas to light the oven burner. It includes 2 ceramic wire connectors and replaces multiple part numbers

Igniter

Limit Switch

Furnace control board. The control board regulates the supply of power to the furnace components.

Control Board

Furnace draft inducer motor. The draft inducer motor draws air into the burner and exhausts it out the flue. If the draft inducer motor is defective, the furnace may not heat.

Draft Inducer Motor

Ensure accurate water levels with this pressure switch, part number WD21X25468, for select GE, Hotpoint, Haier, Cafe, Monogram, Trane, or GE Profile Dishwasher or Packaged Unit/RTU models.

Pressure Switch

Compressor run capacitor, 120 volts 15 mfd.

Run Capacitor

Flame rollout limit switch re-settable 350F

Flame Rollout Limit Switch

1/2HP 115Volts 60Hz 7 amp 1130 RPM's 4 Speed Open Enclosure Single Phase CCW 4" Shaft

Blower Motor

Dual Run Capacitor

image

Payne Furnace Flame Sensor Replacement #LH33WZ520

This video provides step-by-step instructions for replacing the flame sensor on Payne furnaces. The most common reason for replacing the flame sensor is the furnace fan cycling on and off but never lighting. All of the information in this flame sensor replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, 1/4 inch socket

Furnace

Furnace not heating

The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not detect a flame, the control board will shut off voltage to the gas valve to prevent the furnace from heating. Sometimes, if the flame sensor is dirty, it will fail to detect a flame. Try cleaning the flame sensor with a fine abrasive pad. If the furnace still doesn’t heat, replace the flame sensor.

Furnace is noisy or loud

The flame sensor monitors the burner to detect whether or not a flame is present. A defective sensor might fail to detect a flame, causing the control board to shut off voltage to the gas valve to prevent the release of gas. Sometimes, if the flame sensor is dirty and only intermittently sensing the flame is present, the control board will shut off the gas and try to relight the burner several times which can result in a lot of unusual noises.  Try cleaning the flame sensor with a fine abrasive pad. If the furnace still doesn’t light properly, replace the flame sensor.


Furnace starts then stops

Furnace burners won't stay lit

The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not detect a flame, the control board will shut off voltage to the gas valve resulting in the burners not staying lit. Sometimes, if the flame sensor is dirty, it will fail to detect a flame. Try cleaning the flame sensor with a fine abrasive pad. If the burners still won't stay lit, replace the flame sensor.

Furnace takes too long to heat the home

The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not detect a flame, the control board will shut off voltage to the gas valve resulting in the furnace taking too long to heat the home. Sometimes, if the flame sensor is dirty, it will fail to detect a flame. Try cleaning the flame sensor with a fine abrasive pad. If the burners still won't stay lit, replace the flame sensor.

Furnace is frequently cycling/short cycling

**We’re excited to be able to offer trade professionals like you substantial volume-based discounts. Our PRO pricing levels are based on your anticipated annual parts spend with us. If your actual monthly spending trends lower than anticipated, your discount may change.

Appliance Parts, Lawn Mower Parts, Heating & Cooling Parts. 365 day returns.

Sign up for your PRO account

Create your account for exclusive discounts and benefits, like:

Your One-Stop

Shop

Join Repair Clinic Pro to unlock technician pricing, same-day shipping, dedicated support, and exclusive benefits tailored for repair professionals.

PRO users get exclusive discounts and benefits, like:

This account is not eligible, please contact your customer service representative for any questions.

Unlock technician pricing and exclusive Pro benefits at Repair Clinic. Join free today.

Repair Clinic Pro

Repair Clinic Pro | Discounts & Benefits for Technicians

Your discounted pricing and other Pro benefits are now available.

Thank You for joining Repair Clinic Pro!

Return parts & products within 365 days of placing your order.

Adhesives & Sealants Parts

Appliance Adhesive & Sealant Parts

Air Filters

Air Filters for Home

Appliance Cleaners

Appliance Cleaners for Sale

Dishrack Parts

Dishrack Replacement Parts

Dryer Vents

Dryer Venting Parts

Equipment Covers

OPE, HVAC & Appliance Part Covers

Fuel Treatments

Fuel System Treatments

Hardware & Fasteners

Hardware and Fasteners Parts

Kitchen Appliance Accessories

Kitchen Accessories Parts

Washer & Dryer Accessories

Dryer and Washer Accessories

Light Bulb Parts

Light Bulb Fixture Parts

Oil & Lubricants

Oil and Lubricant Parts

Paint & Supplies

Touch Up Paint & Supplies

Power Cords Parts

Power Cord Repair Parts

Safety Equipment Parts

Safety Equipment Spare Parts

Testing Equipment Parts

Testing Appliance, OPE & HVAC Parts

Specialty Tools Parts

Specialty Tool Parts for Sale

Vacuum Attachments

Vacuum Attachment Parts

Water Filters & System Parts

Water Filter System Parts

Water Treatment Parts

Water Treatment System Parts

Wire & Connector Parts

OPE, HVAC & Appliance Wire & Connector Parts

Lawn Care Supplies

Yard Care Supplies

Heating & Cooling Supplies

HVAC Supplies

CHANNELLOCK Tools Parts

CHANNELLOCK Replacement Tools

Gas Cans & Nozzles

Nozzles & Gas Cans for Sale

Maintenance Repair Kits

Maintenance Appliance Repair Kits

OPE cleaners & Filters Parts

Outdoor Power Equipment Cleaners & Filters

Power Tools Parts

Power Tool Replacement Parts

Appliances

Refrigerator

Dryer

Range/Stove/Oven

Washing Machine

Dishwasher

Washer/Dryer Combo

Microwave

Freezer

Oven/Microwave Combo

Trash Compactor

Ice Machine

Range Vent Hood

Vacuum Cleaner

Garbage Disposer

Dehumidifier

Bath Fan

Carpet Cleaner

Water Filtration System

Hot Water Dispenser

Lawn & Garden

Small Engine

Lawn Mower

Snowblower

String Trimmer

Pressure Washer

Chainsaw

Tiller

Leaf Blower

Wood Chipper

Hedge Trimmer

Generator

Log Splitter

Pole Pruner

Edger

Power Tools

Heating & Cooling

Packaged Unit/RTU

Heat Pump

Central Air Conditioner

Air Conditioner

Air Handler

Water Heater

Humidifier

Unit Heater

Drill

Circular Saw

Miter Saw

Reciprocating Saw

Driver

Grinder

Jig Saw

Nailer & Stapler

Paint Sprayer

Planer & Joiner

Battery

Charger

Air Compressor

Wet/Dry Vacuum

Small Appliances

Blender

Carrier

Payne

Sensor & Thermistor

Furnace not heating? This video provides information on how to troubleshoot a furnace and the most likely defective parts associated with this problem. Commonly replaced furnace parts: Gas Valve Igniter Flame Sensor Draft Inducer Motor Flame Rollout Switch Control Board Pressure Switch The information provided in this furnace troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy. In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair. At RepairClinic, we make fixing things easy!

Furnace Not Heating — Furnace Troubleshooting

Gas furnace starts then stops? This video provides information on how to troubleshoot a furnace and the most likely defective parts associated with this problem. Commonly replaced furnace parts: Flame Sensor Pressure Switch Control Board Draft Inducer Motor The information provided in this furnace troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy. In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair. At RepairClinic, we make fixing things easy!

Furnace Starts Then Stops — Furnace Troubleshooting

This video provides a reminder to viewers to replace their furnace filters. Don't forget to like and comment on this video and subscribe to our channel!

Replace Furnace Filters - Tech Tips from Repair Clinic

Furnace blower not running? This video provides information on how to troubleshoot a furnace blower that won't run and the most likely defective parts associated with this problem. Commonly replaced furnace parts: Blower Motor Capacitor Control Board The information provided in this furnace troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy. In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair. At RepairClinic, we make fixing things easy!

Furnace Blower Not Running — Furnace Troubleshooting

Furnace blower noisy or loud? This video provides information on how to troubleshoot a furnace that's too loud and the most likely defective parts associated with this problem. Commonly replaced furnace parts: Blower Motor Blower Wheel Draft Inducer Motor The information provided in this furnace troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy. In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair. At RepairClinic, we make fixing things easy!

Furnace Noisy Or Loud — Furnace Troubleshooting

Furnace blower runs all the time? This video provides information on how to troubleshoot a furnace blower that runs continuously and the most likely defective parts associated with this problem. Commonly replaced furnace parts: Wall Thermostat Control Board The information provided in this furnace troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy. In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair. At RepairClinic, we make fixing things easy!

Furnace Blower Runs All The Time — Furnace Troubleshooting

This free troubleshooting video shows quick maintenance tips including cleaning the furnace, replacing the air filter, and cleaning the home venting to keeping your furnace working safely and efficiently. If you're unable to find the information you need on our website, we suggest that you use a search online to find a reliable online repair forum. It's likely that your question has already been answered there. We also recommend contacting your product's manufacturer or calling a local repair technician. And don't forget to like and comment on this video, and subscribe to our channel!

Furnace Maintenance Tips

This video provides step-by-step instructions for replacing the universal blower motor on Payne furnaces. The most common reasons for replacing the blower motor are when the furnace is loud or the blower motor does not run, but other more common problems have already been checked. All of the information in this blower motor replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, pliers, adjustable wrench, 3/8 inch socket, measuring tape, 7/16 inch socket, zip tie

Payne Furnace Replace Universal Blower Motor #10587

This video provides step-by-step instructions for replacing the blower motor on Payne furnaces. The most common reasons for replacing the blower motor are when the furnace is loud or the blower motor does not run, but other more common problems have already been checked. All of the information in this blower motor replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, pliers, adjustable wrench, 3/8 inch socket, measuring tape, 7/16 inch socket, zip tie

Payne Furnace Blower Motor Replacement #HC43AE134

This video provides step-by-step instructions for replacing the limit switch on Payne furnaces. The most common reason for replacing the limit switch is the furnace cycling on and off repeatedly. All of the information in this limit switch replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, 1/4 inch socket

Payne Furnace Limit Switch Replacement #HH680351

This video provides step-by-step instructions for replacing the gas valve on Payne furnaces. The most common reason for replacing the gas valve is the furnace burners not lighting. All of the information in this blower motor replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, pipe wrenches, 1/4 inch socket

Payne Furnace Gas Valve Replacement #EF32CB192

Repairing a Payne gas furnace? This video demonstrates the proper and safe way to disassemble a furnace and how to access parts that may need to be tested and/or replaced. Here is a list of the most common furnace problems: Furnace does not heat Furnace is loud Furnace only runs for a few minutes Furnace blower does not run Furnace blower runs all the time Tools needed: flat head screwdriver, pipe wrenches, quarter inch socket, pliers, adjustable wrench, 7/16 inch wrench, tape measure, zip ties

Payne Gas Furnace Disassembly (#PG9YAB048080), Repair Help

Furnace not working? This video provides step-by-step instructions for replacing the control board on Payne furnaces. The most common reason for replacing the control board is when the furnace will not operate at all, but other more common problems have already been checked. All of the information in this control board replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, phillips head screwdriver, 1/4 inch socket or nut driver

Payne Furnace Won't Work? Replace Control Board #HK42FZ018

This video provides step-by-step instructions for replacing the draft inducer motor on Payne furnaces. The most common reasons for replacing the inducer motor is the furnace coming on and turning off repeatedly without starting to heat. All of the information in this draft inducer motor replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, pliers, adjustable wrench, 3/8 inch socket, measuring tape, 7/16 inch socket, zip tie

Payne Furnace Draft Inducer Motor #333710-751

This video provides step-by-step instructions for replacing the igniter on Payne furnaces. The most common reason for replacing the igniter is the fan running but the burners never lighting. All of the information in this igniter replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, 1/4 inch socket

Payne Furnace Igniter Replacement #LH33ZG002

This video provides step-by-step instructions for replacing the flame rollout switch on Payne furnaces. The most common reason for replacing the rollout switch is the burners igniting and then shutting off repeatedly. All of the information in this flame rollout switch replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, quarter inch socket

Payne Furnace Flame Rollout Switch Replacement #HH680348

This video provides step-by-step instructions for replacing the drain trap on Payne furnaces. The most common reasons for replacing the drain trap is if the furnace is leaking water. All of the information in this drain trap replacement video is applicable to the following brands: Payne Tools used: flat head screwdriver, pliers

Payne Furnace Drain Trap Replacement #328060-701

Furnace Flame Sensor LH33WZ520

This part LH33WZ520 is compatible with:

Related Articles & Videos

Flame Sensor Customer Reviews

Common Problems Fixed by the Flame Sensor

Furnace not heating

Furnace starts then stops

Furnace is frequently cycling/short cycling

Furnace is noisy or loud

Furnace burners won't stay lit

Furnace takes too long to heat the home

About the Flame Sensor

Shop by Brands

Repair Help by Brands and Product Type

Talk With Us

Talk With Us