Commercial HVAC & Rooftop Units (RTUs)

Do you service 3-phase commercial rooftop units (RTUs)?

Yes. We specialize in the repair and maintenance of commercial package units and RTUs. Our diagnostics cover everything from 3-phase motor troubleshooting and compressor contactors to economizer adjustments and belt tensions. We focus on restoring factory-spec airflow to keep your facility comfortable and your energy bills predictable.

Why is my commercial AC unit tripping the high-pressure switch?

High-pressure lockouts are usually a “cry for help” from your system. It is often caused by a failed condenser fan motor, severely restricted airflow due to dirty coils, or an overcharge of refrigerant. We don’t just reset the switch; we identify the thermal bottleneck to prevent a costly compressor failure.

Ductless Mini Split Installation & Repair

What is the most critical step in a Mini Split installation?

The Deep Vacuum. Because mini splits use high-pressure R-410A or R-32 refrigerant and sensitive electronic expansion valves (EEVs), any moisture or air left in the lines will cause “acid” buildup and premature board failure. We pull every system down to a 500-micron vacuum and perform a triple-evacuation process to ensure a lifetime of service.

Can a mini split provide enough heat for a Seattle winter?

Absolutely. Modern “Hyper-Heat” or high-efficiency heat pump technology is designed to provide 100% heating capacity even when outdoor temperatures drop well below freezing. As an Official Goodman Pro Dealer, we size your system specifically for the Puget Sound climate to ensure your “Backup Heat” is almost never needed.

How often should I clean the filters on my ductless head?

For commercial environments (like cafes or salons), filters should be checked every 30 days. For residential use, every 90 days is standard. Beyond the plastic filters, we recommend a professional “deep clean” of the barrel fan and coil once a year to prevent “black mold” and maintain efficiency.

Residential Heating & Cooling

My furnace is blowing cold air. What should I check first?

A: Before calling for service, check your air filter and your thermostat batteries. If those are fine, the issue is likely a failed igniter, a dirty flame sensor, or a pressure switch lockout. Because we specialize in diagnostic engineering, we don’t just “swap parts”—we test the electrical sequence of your furnace to find the exact failure point, saving you money on unnecessary repairs.

Is it worth repairing an R-22 air conditioning system?

Since R-22 refrigerant has been phased out, repair costs can be high. However, if the system is structurally sound and only has a minor electrical issue (like a dual capacitor or a contactor), a repair is often worth it. If the evaporator coil is leaking, we typically recommend upgrading to a modern, high-efficiency Goodman Heat Pump to take advantage of energy rebates and lower utility bills.

How can I improve the indoor air quality (IAQ) in my home?

Beyond standard filtration, we recommend UV-C Light Germicidal systems and high-efficiency media air cleaners. These systems neutralize airborne pathogens and allergens before they circulate through your ductwork. As a Goodman Pro Dealer, we offer integrated IAQ solutions that work seamlessly with your existing furnace or air handler.

Ready to Restore Your System’s Performance? “Don’t let a minor equipment issue turn into a major operational failure. Experience the A/C Dr. Naz difference—where engineering precision meets same-day service.”