AIR BLUE HVAC Heating and Air conditioning

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AIR BLUE HVAC Heating and Air conditioning Licensed and HVAC contractor in

09/18/2026

A 2-inch filter cabinet does not mean you should install two 1-inch filters together.

In this HVAC installation in Irvine, CA, we explain the correct way to use a 2-inch filter cabinet. You should use either one 1-inch filter or one 2-inch filter, never two filters stacked together.

Using two filters creates additional layers of filtration and can restrict airflow, which may reduce system performance and put unnecessary strain on the HVAC system.

Proper filter installation helps maintain healthy airflow, efficient operation, and reliable HVAC performance.
Real HVAC installation. Professional workmanship. Irvine, CA.

09/12/2026

An AC system that suddenly stops working may have a simple cause: a clogged condensate drain line.

During this HVAC service call in Tustin, CA, we found a filthy air filter and water in the overflow safety switch, indicating a clogged drain. We cleared the line in both directions, removed the blockage, cleaned the overflow sensor, and verified proper drainage and airflow.

After getting the system running, we checked the system performance:

🌡 Return Air: 81°F
🌡 Supply Air: 68°F
❄️ Temperature Split: 12°F
🔧 Subcooling: 1.5°F
🔧 Superheat: High

We then evaluated the refrigerant charge and determined that additional refrigerant was needed to bring the system closer to the target subcooling level.

Real HVAC troubleshooting in Tustin, CA. Real service work. Proper diagnostics.

08/31/2026

Weak AC cooling can sometimes start with a bad capacitor. In this Irvine, CA service call, we inspected a 7-year-old Bryant HVAC system where the condenser fan was slow to start and struggled to reach full speed

Testing revealed the 45+5 µF capacitor was reading below its rated capacity, with the fan side measuring only 0.6 µF instead of 5 µF. We replaced the faulty capacitor with the correct 45+5 µF replacement and added a compressor saver.

After the repair, the condenser fan started immediately and spun at the proper speed.

Proper testing helps identify electrical issues before they lead to bigger HVAC problems. 🔧❄️

📍 Irvine, California

08/27/2026

We installed a new AC Pro Z-Series heat pump system in Tustin, CA, replacing an old gas furnace and aging condenser with a more efficient heating and cooling solution.

In this video, we show the complete installation, including the new indoor air handler, outdoor heat pump condenser, high-efficiency filter cabinet, sealed return cavity, and capped gas and flue lines.

Here's what we installed:
✅ Indoor Air Handler: AIRH-Z-V048V16C
✅ Outdoor Heat Pump: SPHP-Z-V048BB
✅ System: AC Pro Z-Series Heat Pump
✅ High-Efficiency Filter Cabinet: 5-inch filter
✅ New Thermostat: Adjustable fan speeds
✅ Gas Line: Properly capped
✅ Flue Pipe: Properly capped
✅ Return Cavity: Sealed

The old system had refrigerant leakage issues, including a rusted and oily refrigerant line. The customer had previously paid for refrigerant recharging, but the system only lasted a few days before losing cooling again.

With the new heat pump system, the customer now has reliable heating and cooling year-round, improved airflow, and a cleaner, more efficient setup.

📍 Location: Tustin, CA

If you're considering replacing an old HVAC system with a heat pump, this project shows what a complete upgrade can look like.

👍 If you found this video helpful, please Like, Comment, and Subscribe for more real-world HVAC installation, repair, maintenance, and replacement videos.

08/20/2026

I installed this HVAC system about 9 years ago, and today I’m showing why it's important to test and replace a weak capacitor even if the air conditioner still starts and runs.

In this video, we compare the system's performance before and after replacing the capacitor by measuring both the starting amperage and running amperage.

Here's what we found:
✅ Starting amperage before replacement: 142 amps
✅ Running amperage before replacement: 19 amps
✅ Original capacitor: 70 + 7.5 µF
✅ Compressor side measured only 31.74 µF (rated 70 µF)
✅ Fan side measured 6.98 µF (rated 7.5 µF)
✅ Running amperage after installing a new capacitor: 17 amps

Although the starting amperage stayed about the same, the running amperage dropped by approximately 2 amps. A weak capacitor can cause your HVAC system to work harder than necessary, and replacing it may improve efficiency and help reduce energy consumption.

📍 Location: Tustin, CA

If your air conditioner is more than a few years old, it's a good idea to have the capacitor tested during routine maintenance even if the system appears to be working normally.

👍 If you found this video helpful, please Like, Comment, and Subscribe for more real-world HVAC repair, maintenance, and installation videos.

08/08/2026

A homeowner in Tustin, California, contacted us because their 2018 Lennox air conditioning system wasn't cooling properly. Our inspection revealed that the system was low on refrigerant.
After checking the outdoor unit and finding no visible oil marks, we moved indoors to inspect the evaporator coil. That's where we found the problem—a refrigerant leak hidden between the coil fins. We also found an oily drain pan, one of the first signs of an evaporator coil leak.

In this video, you'll see:
✅ How we diagnosed the low refrigerant issue
✅ Why an oily drain pan can indicate a refrigerant leak
✅ How we located a hidden evaporator coil leak
✅ Lennox warranty coverage for the replacement evaporator coil
✅ What repair costs are still the homeowner's responsibility

If your AC isn't cooling or you suspect a refrigerant leak, this video shows the diagnostic process used by our technicians.

📍 Location: Tustin, CA

If you found this video helpful, please Like, Comment, and Subscribe for more real HVAC repair, troubleshooting, and installation videos from Orange County.

05/28/2026

In this HVAC troubleshooting and repair video, we diagnose and repair an ACPRO / Gree / Mr. Cool inverter heat pump system in Tustin, California showing an A1 L3 error code. The compressor was running, but the condenser fan motor would not start.

After testing the condenser fan motor windings with a multimeter, we confirmed the motor was good and traced the issue to a failed inverter control board.

In this video, you’ll learn:
✔️ How to diagnose a condenser fan not running
✔️ How to test a condenser fan motor properly
✔️ Difference between bad fan motor vs bad inverter board
✔️ Step-by-step inverter board replacement
✔️ How to transfer jumpers, isolation pads, and heat sink
✔️ HVAC electrical troubleshooting tips
✔️ Safe AC / heat pump repair procedures for inverter systems
This repair applies to many inverter-style heat pumps and air conditioners (AC units) including ACPRO, Gree, and Mr. Cool systems.

🔥 Common HVAC Problems Covered:
Heat pump compressor running but fan not spinning
AC condenser fan motor troubleshooting
Inverter board replacement
Outdoor unit fan not working
HVAC error code A1 L3
Heat pump fan failure diagnosis
Air conditioner repair tips
HVAC repair in Tustin, CA

05/02/2026

Seeing an OH OE / EHOE error code on your heat pump or air handler? In this video, we explain what this common code may mean on systems like Carrier, Midea, ACiQ, AC Pro, and MRCOOL units.

We’ll show you how to inspect the air handler display, check the overflow condensate safety sensor, and determine if water buildup is causing the issue. Many times, this happens when the primary drain line is clogged or the condensate pump has failed or is overfilled.

In this video, we cover:
✔️ What the OH OE / EHOE code means
✔️ How to check the secondary overflow sensor
✔️ Signs of a clogged condensate drain line
✔️ How to inspect a condensate pump
✔️ Why no power to the pump can trigger the error

If your HVAC system is showing this code, this guide can help you understand the possible cause before calling for service.

📞 Need professional HVAC help? Contact AIR BLUE HVAC for expert heating and cooling service.

04/29/2026

In this video, we take you to Irvine for a complete HVAC upgrade featuring a new 4-ton AC Pro A-Series condenser and gas furnace installation.

The old AC unit was replaced with a high-efficiency system using R-454B refrigerant and up to 15.3 SEER2 for better cooling and energy savings.

We also installed a new ALLIED 80,000 BTU Ultra Low NOx furnace with 80% efficiency and a lifetime heat exchanger warranty.

Built for better comfort, stronger performance, and reliable year-round operation.

🔧 Project Highlights:
• System Replacement: Removed existing AC & gas furnace
• New Installation: 4-Ton A-Series AC & Gas Furnace
• Improved Performance: Better airflow and cooling capacity
• Energy Efficiency: Upgraded system for enhanced efficiency
• Comfort Upgrade: More consistent temperature throughout the home
• Clean Installation: Organized setup with proper connections
• Code-Compliant: Installed to meet current HVAC standards

🛠 Equipment Installed:
• Outdoor Unit: BA714S48P
• System Type: A-Series Air Conditioner & Gas Furnace
• Size: 4-Ton System
• Application: Residential HVAC Upgrade

📍 Location: Irvine, California

If you’re considering upgrading your old AC and furnace, this project shows how a properly installed system can improve comfort, efficiency, and overall performance.

👇 Don’t forget to LIKE & SUBSCRIBE for more real HVAC installations, walkthroughs, and tips!

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04/21/2026

In this video, we take you to Irvine, California, for a complete HVAC system upgrade featuring a high-efficiency variable speed heat pump installation.

This project involved replacing an older gas furnace and air conditioning system, upgrading the home to a modern, all-electric heat pump designed for improved comfort, energy efficiency, and long-term performance.

Instead of simply replacing equipment, we transitioned the home from a traditional gas system to a variable-speed heat pump—delivering better temperature control, quieter operation, and a more energy-efficient solution for year-round comfort.

🔧 Project Highlights:
• System Replacement: Removed existing gas furnace & AC system
• New Installation: Variable Speed Heat Pump System
• High Efficiency: Up to 17.7 SEER2 for improved energy savings
• Quiet Operation: Low sound level around 63 dB
• Improved Comfort: Consistent airflow and precise temperature control
• Air Quality: Upgraded with high-efficiency 5” air filter
• Clean Installation: New indoor air handler with proper condensate management and organized setup
• Code-Compliant: Installed to meet current HVAC and safety standards

🛠 Equipment Installed:
• Outdoor Unit: SPHP-Z-V036BB
• Indoor Unit: AIRH-Z-V036V12C
• Type: Z-Series Variable Speed Heat Pump
• Efficiency: Up to 17.7 SEER2
• Filtration: 5” High-Efficiency Air Filter
• Sound Level: ~63 dB

📍 Location: Irvine, California

If you’re considering upgrading from a gas furnace and AC system to a high-efficiency heat pump, this project demonstrates the benefits of a properly installed modern HVAC system.

👇 Don’t forget to LIKE & SUBSCRIBE for more real HVAC installations, walkthroughs, and tips!

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Address

18707 Vanderlip Avenue
Santa Ana, CA
92705

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 8am - 4pm

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