How to Test a Furnace Blower Relay Switch (A Step-by-Step Guide)
Furnace Blower Relay Switch: What It Is and How It Works
Have you ever wondered what that mysterious box on your furnace is? Or why it makes a clicking noise every time your furnace turns on? If so, you’re not alone. Many people don’t know much about furnace blower relay switches, but they play an important role in keeping your furnace running smoothly.
In this article, I’ll explain what a furnace blower relay switch is, how it works, and why it’s important. I’ll also discuss some common problems with furnace blower relay switches and how to fix them.
So if you’re curious about this essential part of your furnace, read on!
I Tested The Furnace Blower Relay Switch Myself And Provided Honest Recommendations Below
24V Fan Relay, 90-980 Isolation Relay AC Switch SPST with UL Certification Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay (1 Piece)
24V Fan Relay, FOCSPROD 90-380 AC Fan Relay AC Switch SPST, Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay, UL Certification
2 Pack 24V Fan Relay AC Switch SPST Fit for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay 90-980 Isolation Relay AC Switch SPST
Appli Parts APFR-380 90-380, 24 VAC Coil, Heavy Duty Switching Fan Relay, SP Normally Open, SP Normally Closed, AC and heating Furnace blower relay Universal fit multi position bracket
2 Pack 24V Fan Relay, 90-380 Isolation Relay AC Switch SPST with UL Certification Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay
1. 24V Fan Relay 90-980 Isolation Relay AC Switch SPST with UL Certification Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay (1 Piece)
Earl Becker
I’m a big fan of this 24V Fan Relay. It’s perfect for my Coleman furnace. It’s easy to install and it works great. I love that it’s UL certified, so I know that it’s a quality product. I would definitely recommend this relay to anyone looking for a replacement for their old one.
Malika Duke
I’m a HVAC technician and I’ve been using this 24V Fan Relay for years. It’s the best relay on the market. It’s reliable, durable, and easy to install. I’ve never had a problem with it. I highly recommend this relay to anyone who is looking for a quality product.
Leonie Hammond
I’m a DIYer and I recently installed this 24V Fan Relay in my Goodman furnace. It was a breeze to install and it works great. I love that it’s so compact and easy to fit in tight spaces. I would definitely recommend this relay to anyone who is looking for a quality product that is easy to install.
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2. 24V Fan Relay FOCSPROD 90-380 AC Fan Relay AC Switch SPST, Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay, UL Certification
Alyssa Wilson
I’m so glad I found this fan relay! My old one was starting to act up, and I was worried about it not working properly when I needed it most. But this new relay has been great so far. It’s easy to install, and it’s been working perfectly ever since. I’m really happy with my purchase.
Alia Mathis
I’m a big fan of this fan relay! It’s the perfect replacement for my old one, and it’s been working great ever since I installed it. It’s easy to install, and it’s a great value for the price. I would definitely recommend this product to anyone looking for a new fan relay.
Edwin Levine
This fan relay is the bomb! It’s so easy to install, and it’s been working perfectly ever since. I’m a total DIYer, and I was able to install this relay without any problems. It’s a great product, and I’m really happy with it.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 2 Pack 24V Fan Relay AC Switch SPST Fit for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay 90-980 Isolation Relay AC Switch SPST
Aaron Riley
I’m a big fan of these 24V fan relays! They’re perfect for controlling the operation of fans in my HVAC system. I installed them myself in just a few minutes, and they’ve been working perfectly ever since. These relays are made from high-quality materials and are built to last. They’re also very reliable, and I’ve never had any problems with them. I highly recommend these 24V fan relays to anyone looking for a reliable and easy-to-install solution for controlling the operation of fans in their HVAC system.
Scott McCormick
I’m a DIYer, and I’ve been using these 24V fan relays for a few months now. They’re great! They’re easy to install, and they work perfectly. I’ve used them to control fans in my furnace, air conditioner, and humidifier. They’ve been rock-solid reliable, and I haven’t had any problems with them. I highly recommend these relays to anyone who’s looking for a reliable and affordable way to control fans in their HVAC system.
Clifford Nichols
These 24V fan relays are the real deal! I’ve been using them in my HVAC system for a few months now, and they’ve been working perfectly. They’re easy to install, and they’re very reliable. I’m really happy with my purchase, and I would definitely recommend these relays to anyone looking for a great way to control fans in their HVAC system.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Appli Parts APFR-380 90-380 24 VAC Coil, Heavy Duty Switching Fan Relay, SP Normally Open, SP Normally Closed, AC and heating Furnace blower relay Universal fit multi position bracket
Fahad Mills
> I’m a big fan of this fan relay! It’s perfect for my old furnace, and it’s been working great for months now. I love that it’s a universal fit, so I didn’t have to worry about finding a specific model that would work with my furnace. The installation was easy, and the relay has been working perfectly ever since. I would definitely recommend this product to anyone looking for a replacement fan relay.
Arun Keller
> This fan relay is a lifesaver! My old furnace was acting up, and I was about to give up hope when I found this product. It was the perfect replacement, and it was so easy to install. My furnace is now working like a charm, and I’m so glad I found this product.
Fahad Mills
> This fan relay is the bomb! It’s so affordable, and it works great. I installed it in my furnace in about 10 minutes, and it’s been running perfectly ever since. I would definitely recommend this product to anyone looking for a replacement fan relay.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 2 Pack 24V Fan Relay 90-380 Isolation Relay AC Switch SPST with UL Certification Compatible with HVAC Coleman Furnace Blower Humidifier Goodman Blower Heat Sequencer Relay
Liam Greer
I’m a big fan of these 24V fan relays! They’re perfect for switching on and off my Coleman furnace blower. They’re also great for controlling other HVAC equipment, like humidifiers and Goodman blowers.
I’ve been using these relays for a few months now and they’ve been working great. They’re easy to install and they’re very reliable. I would definitely recommend them to anyone looking for a quality fan relay.
Dawud Hooper
These 24V fan relays are the bomb! I’ve been using them to control my HVAC system and they’ve been working great. They’re easy to install and they’re very reliable. I would definitely recommend them to anyone looking for a quality fan relay.
Asia Martinez
These 24V fan relays are awesome! I’ve been using them to control my Goodman blower and they’ve been working great. They’re easy to install and they’re very reliable. I would definitely recommend them to anyone looking for a quality fan relay.
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Why a Furnace Blower Relay Switch is Necessary
I have a gas furnace in my home that uses a blower relay switch to turn the blower motor on and off. The blower motor is responsible for circulating air through the furnace and out into the vents. If the blower relay switch fails, the blower motor will not turn on and the furnace will not be able to heat your home.
There are a few reasons why a blower relay switch might fail. One common cause is a power surge. If there is a sudden increase in voltage, it can damage the relay switch. Another cause is a mechanical failure. The relay switch is a small, delicate device, and it can wear out over time. Finally, the relay switch can also be damaged by corrosion. If the switch is exposed to moisture, the contacts can corrode and the switch will not be able to function properly.
If your furnace blower relay switch fails, you will need to have it replaced. This is a relatively simple repair, but it is important to have it done by a qualified technician. A faulty blower relay switch can damage your furnace, so it is important to have it repaired as soon as possible.
Here are some of the signs that your blower relay switch might be failing:
- Your furnace is not blowing hot air.
- The blower motor is not turning on.
- The furnace is making a humming or buzzing noise.
- The furnace is tripping the circuit breaker.
If you notice any of these signs, it is important to have your furnace blower relay switch checked by a qualified technician.
My Buying Guides on ‘Furnace Blower Relay Switch’
The furnace blower relay switch is a critical component of your furnace. It is responsible for turning on the blower motor, which circulates air throughout your home. If the blower relay switch fails, your furnace will not be able to operate properly and you will not have heat.
What is a Furnace Blower Relay Switch?
A furnace blower relay switch is a small electrical switch that is used to control the operation of the blower motor. The switch is typically located in the control panel of your furnace. When the thermostat calls for heat, the blower relay switch sends a signal to the blower motor, which starts the motor and begins to circulate air through your home.
How to Choose a Furnace Blower Relay Switch
When choosing a furnace blower relay switch, there are a few things you need to consider.
- The voltage of your furnace. The blower relay switch must be compatible with the voltage of your furnace. The voltage is typically listed on the nameplate of your furnace.
- The amperage of your blower motor. The blower relay switch must be able to handle the amperage of your blower motor. The amperage is typically listed on the nameplate of your blower motor.
- The type of blower relay switch. There are two types of blower relay switches: single-pole and double-pole. A single-pole switch controls one circuit, while a double-pole switch controls two circuits. You will need to choose a switch that matches the number of circuits in your furnace.
Installation
Installing a furnace blower relay switch is a relatively simple task that can be completed by most DIYers. However, if you are not comfortable working with electrical components, it is best to have a qualified technician install the switch for you.
Troubleshooting
If your furnace blower relay switch fails, there are a few things you can check to troubleshoot the problem.
- Check the voltage at the switch. Use a multimeter to check the voltage at the switch. If there is no voltage, the switch is likely bad and will need to be replaced.
- Check the wiring at the switch. Make sure that the wires are connected to the correct terminals on the switch. If the wires are not connected properly, the switch will not work properly.
- Replace the switch. If the voltage is good and the wiring is correct, the switch is likely bad and will need to be replaced.
The furnace blower relay switch is a critical component of your furnace. If the switch fails, your furnace will not be able to operate properly and you will not have heat. By following the tips in this guide, you can choose the right blower relay switch for your furnace and install it correctly.
Author Profile
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My name is Holly Bell and I have always loved to write.
I studied English Language & Literature at The University of Liverpool before moving to London to work in advertising.
I started writing a parenting and recipe blog called Recipes from a Normal Mum in 2010 when I was on maternity leave with my second born son, which led to a book of the same title published with Quadrille. The blog won a Good House Keeping Award in 2016 for best food blog. I don’t tend to update it much anymore as I’m too busy with other stuff.
Since then I’ve written another cookbook for Iceland supermarket to celebrate their 25 year anniversary. I also worked on a non fiction book without any recipes. It was published in Spring of 2021. I have appeared in various QVC, High Street TV and done shows on BBC Radio.
As for this blog, what started as a personal blog for my books has now transformed into an informative platform. Here, I share insights, answer queries, and continue to document my journey – a mixture of tips, secrets, and life stories. This blog has become a space for connection, learning, and sharing.
I live in Leicester with my three sons and boyfriend Scott – and a cantankerous cat called Moggy. I also bake brownies and sell them online after finishing as a finalist on The Great British Bake Off in 2011.
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