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Air Conditioning & Cooling

Save time and money with our licensed Air Conditioning repair technicians.

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Heating & Furnaces

Save time and money with our licensed Air Conditioning repair technicians.

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Air Ducts

Save time and money with our licensed Air Conditioning repair technicians.

Victor and John saved me from a full AC do over. I had them out to do a service on my 12 year old system. No more water fountain from the emergency line. Pricing was very fair and I recommend their competitively priced service contract. Thank you Victor and John. 5 stars and I highly recommend.

five stars

Todd A.October 18, 2018

It is so refreshing to have Victor and his crew taking great care of me and my clients. As a Realtor, it is crucial to be able to refer clients to someone that represents me well when interacting and serving my clients I send there way. They knock it out of the park and are fast, courteous and very fair on what they charge.

five stars

Mike R.January 10, 2019

Super responsive and professional! They were able to work around my schedule to get me an estimate within a couple of days, and get a mini split A/C unit installed for me within a week even though I asked for a couple of unusual features (WiFi access for example). The installers were very professional and the result looks great and functions perfectly. The owner followed up with me to verify that everything was done to my satisfaction. I will be switching to these guys for my hvac annual maintenance going forward!five stars

Robert P.May 23, 2019

ABSOLUTE AIRFLOW – Service You Can Trust in Pasadena & all Southern California

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Pasadena HVAC Company: Heating and Air Conditioning

Call Absolute Airflow in Pasadena, CA. We are Open 24 Hours a Day for Standard and Emergency HVAC Repairs

Pasadena Air Duct, Insulation, Furnace, Air Conditioning repair and replacement company offers 24 Hour Emergency services. Absolute Airflow Heating and Air can resolve any issues that may arise within your home.

Absolute Airflow’s HVAC (heating, ventilating, and air conditioning) technicians are experts at inspecting and repairing systems that are not cooling or heating properly. They specialize at everything from condensers, coils, air ducts, air filtration to complete AC installations and AC replacements with the best warranties. Need an annual tune-up up? Ask about our service plan. Annual checkups can help prevent many issues from happening to your air conditioning system. Our service plan gives customers one tune-up for their heating and another for their air conditioning. This makes sure that you have what your home needs when you need it. You also get the benefits of VIP scheduling and up to 15% off of HVAC services.

Absolute Airflow Heating and Air Conditioning can help with the ongoing maintenance of all of your important air conditioning and furnace equipment, as well as annual home inspections to help prevent major HVAC emergencies down the road.

Our Pasadena HVAC Techs are the best in Southern California. Read Our Reviews!

Honesty and integrity are the hallmarks of the Absolute Airflow Heating and Air Conditioning business philosophy and are the foundation upon which the company was founded.

You can count on our analysis of your home’s heating and cooling problems as well as our recommendations for installation, and maintenance. We provide state-of-the-art equipment, so all jobs are performed professionally and efficiently. To schedule an appointment with some of the best Pasadena area furnace and air conditioning repair and installation experts, call (833) 482-2626.

furnace in attic

In the middle of the heating season, the last thing you need is for your furnace to stop working. There are many reasons for a furnace not to turn on. Some require a professional to diagnose and fix; others can be addressed without a technician’s help. A furnace problem can originate from a variety of sources:


Your furnace relies on feedback from the thermostat to turn on. Make sure the thermostat is set to “heat” and set the temperature high enough for the furnace to kick in. If it’s set on heating mode, switch the fan “on” to get the furnace to blow air. Otherwise, check that your thermostat has power or displays an error code (for programmable units).

Power Supply 

Furnaces run on electrical power. If the unit won’t turn on, check that its service switch is “on”; An electrical power switch may be on or near the furnace, or an emergency shut-off switch in the furnace room or basement may be improperly set. Also, the circuit breaker serving the furnace may have tripped. Check the main electrical panel to see if it needs to be reset.

Other power-related causes include an open inspection door (if your furnace has a safety switch), a damaged power cord, or electrical shorts on the control board.

Pilot Light

If the pilot light is out, try to light it, but make sure the flame reaches the bottom of the thermocouple switch. Check the assembly or sensor for dirt, and clean it, if the pilot light goes out too quickly. A faulty ignition sensor can also cause a problem.

Condensate Pan

The reservoir can fill up, but you can drain the reservoir to resolve the problem. If that doesn’t work, look for a blockage in the condensate pipe. Aside from a clogged drain, the pan’s pump may need to be cleaned. But when the float switch is stuck in the “up” position, a new pump will likely be required.

Blower Motor

Check the unit’s inspection window to see whether the light is flashing green. If not, or it is red, the blower motor may have failed. The good thing is you don’t need to know much about the blower motor, or where it is, to check whether it’s working or not.

Air Filter

A clogged air filter will prevent your furnace from turning on. Furnaces have a safety feature for this to prevent them from overheating. Replace any dirty air filter. If you check and clean/replace your filter often, your furnace should never malfunction due to poor air quality.

Gas Line

Check that the gas valve is fully open. The furnace won’t turn on if the gas supply is insufficient, and leaving the valve only partially turned for safety reasons can cause a malfunction. Make sure the main gas line is turned on. But if you smell gas, evacuate your home immediately and call an emergency technician.


Modern furnaces have switches that can affect performance. On high-efficiency units, look for whether the condensate pan overflow switch has been triggered. Removing standing water under the air handler should reset the switch. The flue gas spill switch on a newer gas-fired furnace, designed to prevent leakage, can cut power if flue gases aren’t properly venting. Call a professional to address this problem.

Contact Absolute Airflow for Furnace Help

If you still haven’t found the source of the problem or can’t resolve it yourself, call Absolute Airflow and we’ll send a furnace repair tech to help.

Services Offered:

Local Heating Ventilation & Air Conditioning Company

  • Air Conditioning Repair
  • Air Conditioning Maintenance Tune Up and Inspection
  • Air Conditioning Replacement Cost and Installation
  • Whole House Air Filtration System
  • Air Purifier System
  • Air Duct Cleaning & Replacement
  • Air Conditioner Parts, Repair, Installation
  • Ductless Air Conditioners
  • Attic Insulation and Ventilation

Absolute Airflow serves most cities and zip codes in the Pasadena area

Call (833) 482-2626 for an appointment!

Click here for a list of Service Areas.

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Call Absolute Airflow for Air Conditioning or Heating Services in SOCAL

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