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Chill Out? Not Quite! Tackling the Cold Air Mystery in Your Heating System


Written on November 27, 2023.
Posted in .

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Why Is My Heating System Blowing Cold Air?

As autumn paints the San Gabriel Mountains in a cascade of reds and golds, homeowners in Rancho Cucamonga, CA, are settling into the cooler evenings, perfect for cozy gatherings and warm conversations. The change of seasons is not just about the beautiful landscapes or the anticipation of holiday festivities—it’s also the time when you rely on your heating system to keep that chill at bay. 

But what happens when your trusty heater begins blowing cold air instead of the comforting warmth you expect? Let’s explore some common culprits of this cold air conundrum and how AC Plus Heating & Cooling stands ready with heating repair to bring the warmth back to your Rancho Cucamonga home.

Uncovering the Cold Air Mystery

Understanding the intricacies of your home’s heating system is key to maintaining a cozy atmosphere when the temperatures outside start to drop. A well-functioning heater operates seamlessly, yet when it begins to blow cold air, it could be a sign of various underlying issues, from simple filter blockages to more complex mechanical failures. 

Heating systems, an amalgamation of sensors, motors, and ducts, work in concert to keep your home’s environment at a set comfort level. In Rancho Cucamonga, where the climate demands reliability from your heating, AC Plus Heating & Cooling stands ready to address these challenges with heating repair. Our expertise covers a broad spectrum of potential fixes, ensuring that each component, whether it’s the pilot light, the furnace blower, or the thermostat, is evaluated and serviced to uphold the warmth of your home.

Common Reasons for Heating Systems Blowing Cold Air

As the chill of the evening sets in, the last thing any homeowner wants is for their sanctuary to be compromised by a gust of cold air from their heating system. However, when your heater starts acting more like an air conditioner, it’s crucial to pinpoint the cause and get heating repairs if needed. From simple maintenance oversights to more complex mechanical issues, let’s explore the common culprits behind a heating system’s unexpected cold breeze.

  • Thermostat Troubles
  • Pilot Light or Ignition Issues
  • Dirty Air Filters
  • Ductwork Dilemmas
  • Furnace Overload

Thermostat Troubles

The thermostat acts as the command center of your heating system, dictating the warmth of your home with just a small adjustment. However, when thermostat issues arise, they can manifest as cold air bursts when you’re expecting heat. Incorrect settings, a malfunctioning sensor, or even something as simple as dead batteries can disrupt communication with the heating system.

It’s also essential to ensure the thermostat is calibrated correctly; a misreading can lead to inadequate heating. By scheduling regular check-ups and promptly calling for heating repair to address these anomalies in temperature control, homeowners can prevent these thermostat troubles from chilling their indoor air.

Pilot Light or Ignition Issues

The pilot light in traditional gas heating systems and the ignition system in modern units are crucial for starting the heating process. If the pilot light goes out or the ignition fails, the furnace cannot produce heat, resulting in the circulation of unwarmed air. Issues could stem from a variety of sources, including clogged pilot orifices, faulty electrical components, or even interruptions in the gas supply. 

Regular maintenance ensures these components are clean and functional, while advanced diagnostic tools can help identify electrical faults before they lead to a chilly surprise. Timely intervention by professional heating repair can quickly restore your system’s warmth, ensuring those cold air woes become a distant memory.

Dirty Air Filters

Air filters are the unsung heroes of a heating system, working silently to capture dust, allergens, and other airborne particles. When they become clogged with debris, airflow is significantly hindered, leading to a system struggling to circulate warm air effectively. This obstruction can cause the system to blow cold air, as the heated air cannot pass through the dense filter. 

To maintain consistent heating performance, filters should be checked monthly and replaced or cleaned as needed. A clean air filter not only enhances air quality but also safeguards the furnace from dust-induced wear and tear, optimizing your home’s warmth and energy efficiency.

Ductwork Dilemmas

Ductwork is the network of tunnels that delivers warmth from your furnace to the various rooms in your home. Any leaks, holes, or disconnections in this system can be a silent culprit for heat loss, resulting in cooler-than-expected air output. 

Inconsistent duct insulation or blockages from debris can also cause uneven heating, with some areas receiving warm air while others are left cold. Regular inspections of the ductwork can reveal hidden issues that, once addressed, can restore balance and efficiency to your heating system, ensuring every room receives its share of comforting warmth.

Furnace Overload

Your furnace can go into safety mode and shut down if it’s overloaded, which can often result from an ongoing issue that hasn’t been resolved, such as a dirty air filter or blocked vents. This shutdown can lead to a temporary output of cold air. In some cases, the furnace might continuously cycle on and off, failing to reach the set temperature and consequently blowing cool air. 

Preventive maintenance is vital to address these issues before they lead to a complete system shutdown that will require heating repair. Having a technician service your furnace annually can keep it running smoothly and prevent the inconvenience of a furnace overload just when you need heating the most.

AC Plus to the Rescue

Fortunately, the skilled team at AC Plus Heating & Cooling is well-versed in diagnosing and remedying these issues. With our deep understanding of heating systems and dedication to the community, we ensure that the residents of Rancho Cucamonga, CA, enjoy a warm and comfortable home environment, even as the leaves turn. 

From precision repairs to comprehensive maintenance, we provide tailored solutions that keep your heater in prime condition. Our commitment is to offer reliable, quick, and efficient heating repair services, restoring your comfort without delay.

Embrace the Warmth With Confidence

As we transition into the cooler months, ensuring your heating system operates flawlessly is not just a comfort matter—it’s a necessity for the well-being of your home and family. Timely maintenance and addressing issues like dirty air filters, ductwork dilemmas, and furnace overloads can save you from the discomfort of cold air when warmth is most needed. 

Don’t let a minor issue turn into a winter emergency. Reach out to AC Plus Heating & Cooling for comprehensive heating repair in Rancho Cucamonga, CA. Schedule your service now to guarantee a cozy and reliable sanctuary against the cold. Your comfort is our commitment, and we’re here to ensure your heating system is ready for the season ahead.


Written By Matt Postoian

Matt Postoian has been in the HVAC industry for over 20 years and is dedicated to providing homeowners in Southern California with total home comfort.

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Renae W
1718405902
I am 1000% satisfied with the service I received. I called them around 12:00pm today telling them I have no cold air coming from the vents. It’s now 3:50pm same day and my AC is up and running. They were very professional and customer service was outstanding from the second I called them. Thank you Steven. I am a FOREVER customer. Renae
Larry M.
1718393787
This was the second time we have called you.Tipiccally the service was great,price and all. Will call you back again.
James G.
1718333485
They came out quickly for the estimate and were back within a week. They were incredibly kind and professional. Would use them again and recommend them to anyone!
Jill M.
1718322642
Always awesome! Reliable and honest
Phil M.
1718319130
Everyone has been great especially Scott.Can't thank you enough!
jennifer L.
1718297772
Thank you Matt you did awesome. He took the time to explain the problem. Told us what to look for in the future. He was very nice and respectful to myself and my daughter. Will definitely recommend and refer in the future.
evelyn K.
1718297624
ACPlus is a great company to service my equipment. They are on time. Called ahead to let me know they were on their way. Clean job, thank you. Will recommend ACPlus as a great company to work on my AC system. Thanks as gain.
evelyn K.
1718296615
Great job setting up our master cool system. On time. Clean job. Thank you A C Plus.
Jeanine N.
1718244385
Awesome service..installation went smoothly..I went with electric a/c and electric heater due to just getting solar panels. Thank you for all a great job.
Kris
1718237471
As always, AC+ showed up on time, diagnosed the problem & fixed our air conditioner quickly. You can’t get better service
Judy S.
1718218871
Scott did a wonderful job for today's adventure he got the pump working in no time at all
Hortencia A.
1718152713
I very much appreciate the work that was done, very professional helpful they pick up after and cleaned up after the job was done.
Kumi 2
1718150470
He did a thorough inspection and is very experienced. Definitely would use him again
paul C.
1718141082
Shawn one of the technicians came out and got everything working right again. Can’t thank them enough! Shawn was a very nice guy and very knowledgeable he didn’t mind teaching me more about my system when he was here and walked me through what he was doing every step which was awesome!
Debbie S.
1718063768
The name on this address is Nancy ShortExcellent Service and very polite!
Maria S
1718041152
Brandon was very respectful, courteous and kind. He explained everything to me in a way to understand. Very knowledgeable. All in all everyone was very great from scheduling first appointment, loan application and next scheduled date and time. With gratitude and appreciation. Thank you!
Jennifer B.
1717822516
Brandon was super friendly,extremely helpful. So great to have experience his expertise.
Jeffrey D.
1717806820
AC Plus has always provided fast, convenient, quality service. They are simply the best in the high desert. Technicians always explain exactly what they have done, and make recommendations to keep the system running efficiently.
Robert Z.
1717793583
Wonderful company and Brandon was a wonderful technician! Definitely will call for any future repairs.
Robert Z.
1717793517
Wonderful company! Fast service and Brandon was great technician! Very communicative on every step he took to fix the AC! Definitely will be calling for any future repairs.
Marjorie B.
1717786055
Very satisfied with initial service call and installation of new unit.
Olga P.
1717786051
I had an air conditioner installed on Monday and they were very professional and efficient. We are very pleased with their work.Thank you 👍
Don H.
1717784215
Technician very personable and efficient. I felt I got my money’s worth and he didn’t waste my time. Knew what he was doing.
Wanda S.
1717774326
Sean arrived on time and called ahead when on the way to my home. As usual, very kind and helpful with addressing my concerns regarding the freon level in the HVAC system they installed in March of 2024. It turned out everything was fine and working properly. AC Plus & Air is my go to company for HVAC needs. I couldn't ask for better service.
Charlene C.
1717727786
Great customer service!! Scott sure knows what hes doing! Hes quick,efficient and great customer service!! He deserves a raise!
Sherri K.
1717721965
The gentleman that came out was very friendly and professional. He gave us several ways to go to resolve the issues with our A/C unit. I would highly reccomend.
rosa O.
1717721512
We have done business with A/C plus in the past and that is why we chose to contact them for service at our other property. We are pleased with the work done at our residence.
Jeanine N.
1717716387
Very friendly family oriented and helped us by walking us through the finance process...I already knew I needed ac system since it is 22 years old...just got solar so I went with all around electric for ac and heater.
Dominique P.
1717707429
Matt was very knowledgeable and patient when explaining everything regarding my AC unit issues.
Debra F.
1717696336
Scott was very personable and professional, he did a great job on our air conditioning tune up! See you in the fall!
Bill G.
1717632811
They installed a new Bosch AC and Heating unit in my Upland home. The crew was prompt, courteous and professional. Showed up on time and completed the job on time.
Joe R.
1717630837
OUTSTANDING PROFESSIONAL S
Natasha P.
1717628505
This A/C company is awesome, 5-stars all around. They come out very quick and great pricing.
Joe R.
1717619704
Outstanding Service!Amazing Professional!Consistent, Knowledgeable &courteous!
ralph C.
1717618700
The workers showed up as arranged, did the work carefully and cleaned up after they were finished. We were very happy.
John K.
1717615319
Your Technician was here for the summer AC service. He was friendly and knowledgeable so we are very pleased with the service today.
Alejandra C
1717610272
Scott from AC Plus Hearing and Air Conditioning was amazing , professional, and very well educated in regards to our AC home units. Thank you Scott for coming in such short notice and providing us with your expertise.
MammaZ Z
1717606402
Great Service! From the first consultation and getting a quote to the finished job. Everyone at AC Plus Heating & Air were the most professional and nice people. I highly recommend using them for all of your heating and air conditioning needs.
krash c
1717556123
Great service! Will do business with them again.
krash c
1717556084
Great service! Got me up and running with a brand new ac unit without hesitation.
SB Co. Fire Dept. Fire Apparatus T.
1717535547
Brandon was Fantastic, he explained everything in detail on what he was checking and how he was going to check it. Shared with me what he had found, located the part that was going to be needed and cost. We approved the repairs and he did them in a Professional and timely manner that same day. He had completed the motor install and testing of the complete a/c system. He made a few suggested saftey protection upgrades and our A/C, Heating System is working Like New again. Thank you Brandon and AC Plus
Jennie M.
1717525477
Matt was amazing. Great customer service. Was very thorough. I’d recommend him everyday.
Jennie M.
1717524536
Matt was amazing. He has great customer service.Love it!
mike T
1717524337
Scott’s very knowledgeable and a very listener!
John P.
1717501485
AC Plus is "Outstanding"! They did everything they said they would. On time, great products, great value and great people. I will use them again!
Cece X.
1717482205
great Job , quick fix problems ,very professional nice to work withI am very happy to work with this company .
Sabrina E.
1717451668
Outstanding service. The gentleman was quick and a pleasure to talk with. I highly recommend this company. No hidden charges.
Jamie J.
1717451604
Thank you Omar for your speedy service and for getting my system back on and running in record time. #1 in my book 👍
Bigc909
1717445160
Steven was our technician. Very knowledgeable and skillful. Very punctual. Was in and out. Got us up and running before we knew it. Thank you so much! This is how businesses should operate. 100% satisfied
Ismael M.
1717253804
Professional, reliable and trustworthy service. Recommend 100%
Erica L.
1717199398
Steven was extremely helpful and informative. Did full maintenance on my mini split and even offered a good price the other ac units on the property. 5 stars all around!
Allan D.
1717171086
Always on time, and competent.
Adrian D.
1717111974
Sean was very professional, he explained the work he was going to be doing. He gave me an after work repair report. Will be using AC Plus Heating and Air again.
Glenn P.
1717106024
Very professional and personable.
Alexis R.
1717022426
My dryer vent was clogged, I mean CLOGGED from the heavy rain we had been having I assume. This man had to work to get them chunks out and he did awesome! He earned that money. 10/10
Sherie R.
1716963447
I received an estimate, they were very professional and informative.
Cindy S.
1716928279
Thank you, Sean! Both air conditioning units were serviced today. I truly appreciate Sean’s great customer service, he took his time to explain everything and I never felt pressured to make upgrades. We look forward to continuing our AC and heater services with AC+ HVAC.
Fred W.
1716673391
This was the first time I chose AC PLUS.....and boy it was the RIGHT choice. I was extremely impressed with the team and level of customer service. The ladies in the front office were friendly, kind and so very helpful and understanding when I had to make multiple changes to my appointment schedule.When Steven arrived he was very professional and went right to work. Steven knew his job well and took great pride in his work. He carefully explained the process and the results and answered all my questions.If you need your A/C unit serviced do not hesitate to call AC PLUS...you will not be disappointed!
Carlos P.
1716664597
Friendly & perfessional service
Memmem 1
1716509171
Sean was friendly and personable, he told us what he would be doing. He took photos of the unit before and after. He answered all of our questions in detail and explained how the system works. So glad we found a company/senior technician that we can trust. Five stars for excellent service.
Susan D.
1716311674
Scott was very nice and professionalShowed me the pictures he took
david C.
1715556147
OUR TECHNICIAN WAS VERY FRIENDLY AND KNOWLEDGEABLE ABOUT INSTALLING OUR NEW AC SYSTEM. THANKS AGAIN.DAVID CHACON
Mike C.
1715191623
Always enjoy the service I get from AC Plus. I often ask a lot of questions and they communicate effectively to make this old man understand and feel comfortable with what they are suggesting and/or doing.
Gary
1714688274
Technician Brandon provided excellent customer service! He was friendly and efficient, called to let me know he was in his way, arrived on time, thoroughly evaluated and tested my air conditioning system, knows his stuff and was informative. Thanks Brandon and AC Plus!
Charles S.
1714602798
Alway prompt professional service Have used A C plus for over 12 years and everyone is knowledgeable and courteous.
Michael H.
1713823706
Scott arrived on time and cheerful as always. I have been very pleased with AC Plus everytime they have come out to do their regular maintenance on my system. I give them my highest recommendation.
Mary S.
1713280089
Yes was very thorough did a great job
m H
1712949649
Always receive great service. Frim the admin who make sure my schedule is met to the service personnel.Your serviceman really explained what he would do then he explained everything he had done. Tge is on exceptional employee.
Barbara F.
1712704920
Very professional and knowledgeable.
Andrew T.
1712279111
These guys are quick and professional. Highly recommend
Lynne W.
1712091665
Sean has always been on time, great communication and very knowledgeable. Very happy with this company.
Judi L.
1712002039
Professional. Excellent servce
Kenny V.
1711989097
Professional service, very easy to deal with.
sherri H.
1711564554
Scott came to do my Spring maintenance and was friendly and professional to talk with. I’ve been using AC Plus for a few years now and have not had one unfriendly incident whether on the phone or in person.
J B.
1711487794
Kyle was knowledgeable and professional. He was able to explain the nature of what was causing the issue with the heating components.Great customer service :)
Alyssa F.
1711150847
Steven was respectful of our home and was able to troubleshoot the issue with our condenser/transformer quickly and efficiently. We would definitely recommend AC Plus Heating and Air! Thank you, Steven!
Moe A.
1711148484
Timely and professional! Sean was extremely friendly and had excellent communication throughout the whole process. Best estimate I got in the high desert for the work I needed done and answered all the questions I had. I'm extremely pleased with the crews work and cleanliness. I'll always recommend AC Plus heating & air to family and friends.
Juan D.
1711123912
Very good.Brandon was very helpful explaining AC unit was in perfect conditions.
Kevin L.
1711065683
I needed them to install a Z wave thermostat. It’s an unusual thermostat and we didn’t have any luck the first time. But the second time, there worker did a fantastic job of getting the thermostat up and working. He was very easy to work with and did a great job, I highly recommend them.
Mike C.
1669837459
Highly recommended Ac Plus Sam was very nice and very informative and great price .
Nest C.
1635180103
Great service! Very professional and friendly!
Karen
1634688727
Very reasonable, professional and got the heat back on in no time! Thanks!
Arianna P.
1634596836
Everything was easy and quick, from the estimate to the installation.
SW08
1633199328
Very good customer service, Reliable outstanding Serivce I received a call from the technician to notify me there was a cancellation which was outstanding the technician came by and good an outstanding work and explained everything he did with the furnace I would recommend this company to anyone 5 stars
Sanstlwh C.
1633120842
The customer service is excellent both on the phone and the technician Jonathan. Our air conditioner is running wonderfully again! Thanks so much!
Brian V.
1632682714
My air conditioner stopped blowing air through the vents. I knew I had to find an HVAC repair guy fast and I was worried about having some stranger with his hands on my equipment. I did a web search and found AC Plus Heating and Air with many hundreds of 5 star reviews on Google.Omar Amore came to my house and diagnosed and fixed the problem in 20 minutes and it cost me much less than expected. After he performed the work, he spent another 15 minutes with me educating me about the proper maintenance of my air conditioner. He quoted me some pricing on a couple action items to do next spring to keep my unit in good working order.Omar struck me as honest and thoughtful. I will use this company again for all my heating and air needs.
Richard M.
1632514164
The service tech was on time, polite, and attentive.
Edward S.
1632511078
Amazing experience with Sean coming out to view our property. Had a few concerns which we addressed and he also went above and beyond by replacing and fixing certain parts of the AC we were unaware of. Definitely will be using this company in the future.
Jennifer M.
1631839210
Our AC died Tuesday night, we called Wednesday morning and they had a new unit up and working by Thursday afternoon. Very friendly and professional.
Kris F.
1631577301
A/C went out and they came to help the 1st thing after the weekend! Very friendly, professional and prompt!
Virginia J.
1631236907
The tech called to say he might be early, then called again once he was on his way. The job was hard to get to, but he persevered and got the job done!
Robert G.
1631229084
Called AC Plus for AC service. They were very courteous and professional on time for my appointment, Jonathan service tech showed up diagnose the issue, and had my house AC up and cooling fast!
Marco A.
1631135651
The staff at AC PLUS where amazing friendly and courteous. The technician Sean was very honest, friendly and kept us informed of what was going on till the very end. I HIGHLY RECOMMEND THIS COMPANY. A+ RATING in my book. Thank you for the service AC PLUS.
Jeff M.
1630089203
Our AC unit failed yesterday. Of course, it has been over 100 degrees the last few days, so we were concerned. Called AC Plus this morning and they had it up and running again by 11:00am today! Jonathan was great and explained everything to me, answered all my questions. We will be calling them again if we ever have any problems. The woman that answered the phone there this morning was also very helpful and pleasant to deal with. Thank you AC Plus!
Chris O.
1628985378
Dogs were trying to get a squirrel and smashed the freon line flat. Omar came out and took care of the situation quickly and professionally much appreciated.
Rosanna R.
1628633307
Everyone that works for this place is very friendly, efficient, caring and keeps you informed of when they will arrive. Air conditioning is up and running. Thank you 😊
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