HVAC Frequently Asked Questions

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Answers to Common HVAC Questions

Homeowners often have questions about heating and cooling repairs, maintenance, equipment replacement, service calls, and what to expect when an HVAC technician comes to their home.

David’s HVAC provides residential heating and cooling services throughout the Denver Metro area. Below are answers to some of the most common questions we receive from homeowners.

General HVAC Service Questions

What HVAC services does David’s HVAC provide?

We provide residential heating and cooling services including AC repair, AC installation, AC maintenance, furnace repair, furnace installation, furnace maintenance, heat pump services, mini split services, thermostat services, and water heater services.

What areas does David’s HVAC serve?

We serve homeowners throughout the Denver Metro area. Contact us if you’re unsure whether your home is within our current service area.

Do you offer emergency HVAC service?

Yes. Emergency HVAC service is available for heating and cooling problems that require prompt attention. Availability may depend on your location and our current service schedule.

How much is the diagnostic fee?

David’s HVAC charges a $69 diagnostic and travel fee. The technician evaluates the system to help determine what’s causing the problem and what options are available.

Will you tell me the cost before making a repair?

We believe homeowners should understand the problem and recommended solution before moving forward. After diagnosing the issue, we’ll explain the available options and applicable costs before authorized work begins.

Do you work on different HVAC brands?

Yes. David has experience working with major residential HVAC brands and a wide range of heating and cooling equipment.

How much experience does David have?

David has more than 18 years of residential HVAC experience serving homeowners and working with heating and cooling systems.

AC Questions

Why is my air conditioner running but not cooling?

Several problems can cause an AC system to run without adequately cooling the home. Possible causes include airflow problems, dirty components, thermostat issues, electrical problems, refrigerant related issues, or failing equipment. A proper diagnosis can determine the actual cause.

Why won’t my air conditioner turn on?

The problem could involve the thermostat, electrical supply, breaker, safety controls, capacitor, wiring, or another component. If basic thermostat and breaker checks don’t resolve the issue, professional diagnosis may be necessary.

Should I repair or replace my air conditioner?

It depends on the age and condition of the system, the repair needed, previous repair history, efficiency, and cost. David’s HVAC believes in considering a practical repair before recommending replacement when a safe and reliable repair makes sense.

How often should my AC be maintained?

Annual AC maintenance is generally a good approach for residential systems. Regular maintenance can help identify problems, maintain performance, and reduce the chance of unexpected breakdowns.

What are signs my AC needs repair?

Common warning signs include weak airflow, warm air, unusual noises, frequent cycling, unusual odors, water around the equipment, or difficulty maintaining the thermostat setting.

Furnace Questions

Why is my furnace running but not heating the house?

Possible causes range from thermostat and airflow problems to ignition, flame sensing, electrical, or mechanical issues. Because furnaces may involve gas, combustion, and electrical components, some problems require professional diagnosis.

Why does my furnace keep turning on and off?

Frequent cycling can be caused by several issues, including airflow restrictions, thermostat problems, overheating, equipment problems, or improper system operation.

Should I repair or replace my furnace?

A furnace does not necessarily need replacement simply because it needs a repair. We consider factors such as equipment age, safety, repair cost, overall condition, efficiency, and previous problems before recommending replacement.

How often should a furnace be serviced?

Annual furnace maintenance is generally recommended. Having the system inspected before or during heating season can help identify potential problems before you depend on it during colder weather.

What furnace problems require immediate attention?

Shut the system down and seek appropriate professional assistance if you suspect a gas leak, carbon monoxide issue, electrical hazard, combustion problem, or another potentially dangerous condition.

HVAC Maintenance Questions

Is HVAC maintenance really necessary?

Regular maintenance can help keep equipment operating properly and identify developing problems before they turn into larger repairs. Maintenance does not guarantee that equipment will never break down, but it can be an important part of taking care of a heating and cooling system.

Can HVAC maintenance lower my energy bills?

A properly operating system may use energy more efficiently than equipment struggling with airflow, dirty components, or mechanical problems. Actual energy savings vary based on the home, equipment, weather, thermostat settings, insulation, and other factors.

How often should I change my HVAC filter?

The appropriate schedule depends on the filter, system, household, pets, indoor conditions, and how frequently the equipment operates. Check your filter regularly and follow the filter and equipment manufacturer’s recommendations.

HVAC Replacement and Installation Questions

How do I know when it’s time to replace my HVAC system?

Age alone doesn’t always determine whether replacement is necessary. Frequent breakdowns, major repair costs, safety concerns, poor performance, declining efficiency, and the overall condition of the equipment can all factor into the decision.

Will David’s HVAC recommend repair before replacement?

When a safe, practical, and reliable repair makes sense, we believe homeowners should have that option explained to them. Replacement may still be appropriate when equipment is unsafe, severely deteriorated, unreliable, or no longer economical to repair.

How long does HVAC equipment last?

There is no single lifespan for every HVAC system. Equipment life depends on the type of system, installation quality, maintenance, usage, climate, operating conditions, and repair history.

Heat Pump and Mini Split Questions

Does David’s HVAC work on heat pumps?

Yes. We provide heat pump services for residential systems, including troubleshooting and other heat pump needs.

Do you service mini split systems?

Yes. David’s HVAC provides services for residential ductless mini split systems.

Are heat pumps suitable for Colorado homes?

Heat pumps can be an option for many Colorado homes, but the right equipment and system design depend on the property, heating requirements, existing equipment, and homeowner goals. An evaluation can help determine what makes sense for a particular home.

Thermostat Questions

Can a bad thermostat make my HVAC system stop working?

Yes. Thermostat problems can sometimes cause heating or cooling equipment to behave incorrectly or fail to operate as expected. However, similar symptoms can also be caused by other HVAC problems, so the thermostat should not automatically be assumed to be the cause.

Can you replace or install a thermostat?

Yes. David’s HVAC provides thermostat services and can help determine whether a thermostat issue requires repair, replacement, or further HVAC diagnosis.

Water Heater Questions

Does David’s HVAC service water heaters?

Yes. Water heater services are among the residential services offered by David’s HVAC.

When should I have my water heater inspected?

If you’re experiencing inconsistent hot water, unusual noises, leaking, changes in water temperature, or other unusual behavior, an inspection can help determine the cause. Active leaking or other potentially hazardous conditions should be addressed promptly.

Appointments and Service Calls

What should I do before the technician arrives?

Make sure the HVAC equipment and thermostat are reasonably accessible. If possible, note when the problem started and any unusual sounds, smells, error codes, or changes you’ve noticed. That information can sometimes help with diagnosis.

Do I need to be home during the appointment?

An adult who can provide access to the home and authorize work should generally be available during the service appointment.

What happens during an HVAC diagnostic visit?

The technician evaluates the reported problem and relevant components of the system to determine what may be causing the issue. Once the problem has been diagnosed, the findings and available options can be explained to you.

Still Have an HVAC Question?

Every home and HVAC system is different. If you’re dealing with an AC, furnace, heat pump, mini split, thermostat, or water heater problem that isn’t answered here, contact David’s HVAC.

We’ll help you determine the appropriate next step.