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Troubleshooting Furnace Tips from Top Waukesha HVAC Company

October 4, 2016
Furnace Repair in New Berlin

One of the most common reasons for emergency furnace repair services is when a home furnace won’t start. Before paying for professional furnace repair in Milwaukee and surrounding areas, here’s a few easy things you can check yourself in just a matter of minutes.

Check Thermostat Settings Before Furnace Troubleshooting

Before you roll up your sleeves and head to the basement or utility closet to check your furnace and fuse box, take a look at your thermostat to ensure its set to the “on” or “auto” position. This sounds so obvious, but many of our home heating repair calls are a result of homeowners not having their thermostat set properly. It may have gotten moved accidentally to the off position during dusting, cleaning or moving.

The “on” or “auto” position is going to help us double check you have power going to the furnace. If the fan doesn’t comes on after you’ve moved the switch to “on” or “auto” then you know you’ve other problems.

When checking the thermostat settings, you’ll also want to make sure you have the temperature set to a temperature that will actually turn the furnace on. Give your HVAC system a minute for the fan and heat to turn on. If that didn’t work, set your thermostat to 90 degrees to stop it from turning on and off while you’re troubleshooting.  If that didn’t work, either contact our Waukesha HVAC team for help, or move on the four steps outlined below.


4 Things to Try Before Calling a Furnace Repair Company in Waukesha Co.

If your thermostat setting isn’t the culprit, head to the furnace to try these 4 simple steps.

1. Check the Furnace Filter.

Is it dirty or clogged? A clogged furnace filter prevents sufficient air flow from getting to the furnace motor causing heat and pressure to build up in the furnace. Most new furnaces will shut down before a dirty filter can more damage.  If a dirty air filter is the culprit, we recommend changing or cleaning your filter, and scheduling furnace maintenance service for a more thorough furnace cleaning and filter change.

2. Is the furnace power switch “on”?

It’s a bummer to pay an HVAC technician to come to your house, just to flip a switch. The furnace power switch looks like a regular light switch and is usually on a wall near the furnace, or on the side of your furnace.

Unfortunately because it is typically not labeled and looks like a light switch, it’s common for someone to move it to the “off” or “down” position thinking they’re saving you money on lighting bills, when they’re actually turning off your furnace.

3. Check Drain Line.

The condensate drain line is located in most cases on the side of your furnace and is white or clear. If this line becomes clogged, it can cause water to back up and trigger an overflow shutoff switch. Do you notice any water pooled around the drain or furnace? If so, this may be a good indicator your drain line is clogged.

Cleaning the condensate drain line is relatively simply if you don’t mind the mess. Essentially you’ll want to pull apart the drain line at a connection, suck out the gunk with a shop vac, then use hot water and bleach to try to clean out the blockage. If this doesn’t work, or the clog seems to be in a spot that’s difficult to access, we recommend scheduling a furnace cleaning by a certified HVAC

4. Check Circuit Breaker.

The circuit breaker box is usually located in the basement, a main closet or utility closet and looks like a metal box with a bunch of sideways switches. One of those switches should hopefully be labeled “furnace” or “heating system”. If it’s not facing to the right side you know it’s NOT on, or has “been tripped.”

We need the circuit breaker to be on to allow electricity to run the furnace fan. So, to turn the furnace circuit breaker back on simply move it to the left (off) position, then back to the right (on) position. Note, if circuit breakers continue to trip you may have a more serious issue that requires a professional electrician.


24 Hour Heating Repair Service

If these furnace troubleshooting tips didn’t do the trick, it’s time to call a local HVAC professional.  The New Berlin HVAC team at Capital Heating & Cooling are highly trained to troubleshoot all types of heating systems including forced air gas furnaces, oil furnace equipment, boiler heat systems, geothermal heating, and ductless heating.  No matter what the issue is, you can trust our professional HVAC technicians to deliver honest and affordable 24 hour furnace repair services.

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  • Heating
    • Emergency Heating Repair
    • Beyondify My Furnace
    • Boilers
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    • Furnaces
    • Heat Pumps
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    • Air Conditioners
    • Ductless Mini Splits
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Google Rating
4.8
Based on 2310 reviews
Capital Heating & Cooling
4.8
Zach Bernardi
Zach Bernardi
1695320406
Anthony and Otilio did an excellent job. They cut the static pressure in my HVAC system in half! They were fast and efficient and left the place as clean as they found it. The price was a bit more than I expected but it was high quality work.
Manuel S
Manuel S
1694726764
This place was amazing! Had our ducts cleaned by them and that went good. They were professional and clean. Showed us pictures of the before and after work. We then decided to get new air conditioner and heater for our house. The person who scheduled us, Justin, was very professional and answered all of our questions. He also strived to get us the best deal and explained all our options well. We scheduled for the new products the next day and the workers Antonio and Otilio were really good! Antonio explained every step of the process and answered all our questions. Once they were done Antonio did an awesome job of showing us the new system and explained the thermostat well. Overall me and my wife are very satisfied with this company and would highly recommend.
Bradley Scott
Bradley Scott
1694619232
The two technicians Alejandro and Joshua were on time, professional, respectful of my home, were willing and waiting to answer any questions I had, didn’t leave until the heating and cooling components of my furnace and air were operational. They also made sure I understood the functions of the newly installed thermostat. This was a great experience for me and I would definitely recommend Capital heating and cooling to anyone.
kateri Giehl
kateri Giehl
1693750061
We had an amazing experience with Capitol heating, cooling and electrical while having a new furnace/AC installed and air ducks cleaned. All of the employees with Capital were professional, responsible and respectful. We were especially impressed with our experience with Anthony and Otilio’s installation of the furnace and AC. I highly recommend them to anyone looking for quality HVAC service and products for your home.
Vicki Burbach (Miss Vicki)
Vicki Burbach (Miss Vicki)
1693594566
Anthony and Otilio installed a new central AC unit and did a wonderful job. They were knowledgeable and did a fantastic job. They were also respectful of my property.
Tom Halstead
Tom Halstead
1693417916
We always get great service with Capital Heating and Cooling.
Soccer Fan
Soccer Fan
1692806960
Have had up and down quality from this company over the past three years. One incident created an extremely dangerous situation for my family. The last straw came when they never showed for an appointment. When I called to find out why, they claim to have called me and emailed me. I have no email or calls or messages from them as they claim to have “in their records”.I’ve given them two stars instead of one for two reasons: James, who installed my furnace and AC, and Logan, who tried to fix my AC gave me an honest assessment of the situation. If I had been able to work with people like these two upstanding men in all my interactions with this company, I’d still be a customer. If you chose to go with Capital for your needs, just make sure to request James for your installs and Logan as your tech. They do 10 stars out of 5 quality work. Thank you James and Logan! I hope you get well deserved raises!!Updated 8/23/23:I gave Capital another chance after a year since I had some a/c issues that were covered by warranty. This is not the same company I worked with in the past. Between Anthony and Skandar, we had unbelievably thorough work, explained every detail, corrected some previous by errors techs who are no longer with the company, and gave me the confidence to change my review to 5 out of 5.
Daniel Cichy
Daniel Cichy
1692751144
Great service and the technicians were very knowledgeable and kind
Bryan A
Bryan A
1692129655
Anthony and the guys did a great job and answered all our questions about the new HVAC system.
Steven Roneid
Steven Roneid
1692026869
The guys were prompt, professional, and did a great job. They made sure any questions were answered.
David Wand
David Wand
1692026724
Very efficient and friendly service. Josh called ahead and did the work on the furnace in a professional way.
HootingCat 227
HootingCat 227
1691605028
Anthony and Otilio are fantastic people! They did an outstanding job and explained everything they did! My AC was on for only a couple minutes and an amazing improvement to my home! Thank you again! (My pets and lungs thank you too!)
Chris Colby
Chris Colby
1691522298
I had Arno and James at my house today to troubleshoot my A/C. They were both very professional and knowledgeable. It didn’t take long for them to diagnose the problems and come up with a action plan for repairs. They explained and showed me the all the issues. They make a Great team! I highly recommend using them for your A/C and heating needs.
ssgeraci
ssgeraci
1691429756
Our electrician, Chad, was on time and completed the Tesla wall charger installation in half of the estimated time. The work was professionally completed including cleanup. Chad is an excellent electrician and I highly recommend him and Capitol Heating Cooling and Electrical.
Hannah Gronowski
Hannah Gronowski
1691167192
Jamie was very professional and knowledgeable and walked my through the process of a furnace tune up, he was so helpful, I appreciate his work and I am so pleased with my wonderful experience with Jamie.
Victoria Lusz
Victoria Lusz
1690999134
Our Central Air stopped working, called a different company, they were unable to repair, and replacement was 2 weeks wait. Called Capital and they arrived within an hour, new Central Air installed within 2 hours. Amazing service! Quick to respond, polite and professional. I will recommend them to everyone!
Mark Christiansen
Mark Christiansen
1690389030
I had my AC go out. They were quick to respond. What I like how they were honest with my situation. I worked in construction for years and know that they were not going to sell me what I needed. Installation was great and super friendly.Overall a great job.
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