Category: Uncategorized

7 Possible Reasons Why Your Furnace Is Blowing Cool Air

For the most part, typical Alabama Winters are not harsh. Fluctuating temperatures may lead you and others feeling as if they need to adjust the thermostat to get to a comfortable temperature.  When we are hot, we want A/C and when we are cold, we want heat.  But what happens when our furnace is blowing cool air?

Here are 7 reasons why your commercial furnace may be blowing cool air.

  1. Incorrect Thermostat Settings
    As mentioned earlier, our winters can be inconsistent.  As a result, you may have multiple people trying to adjust the thermostat settings to create a environment that is comfortable for them.   To reduce the constant thermostat changes some offices have implemented lock boxes around the thermostat or have a Building Automation System that will regulate the environment.  If you are interested in more information regarding a Building Automation System, contact Hardy Services.
  2. Thermostat Location
    We have all heard; location, location, location.  This also applies to your thermostat location.  If the person in the room where the thermostat sensor is located is running a space heater the sensor will be reading a higher temperature for the space and the result may be a cooler air flow into other rooms.
  3. Empty Oil Tank
    If you have an oil-fired furnace, you may be out of fuel. If so, your blower may keep circulating cool air even after the burner fails to light and produce heat.
  4. Issue with Computerized Controls
    If you have a building automation system, you may need to reset the system by turning the system off, wait a few seconds, and then restart your system. This is similar to rebooting a computer. If the furnace still blows cool air, call a professional. (Check out our Climate Controls blog)
  5. Valve Problem
    If your pilot light won’t light at all, you may have a faulty gas valve. Or, if your system has not been cleaned in a while, a valve could be stuck due to dirt and debris. Have your system cleaned and inspected by a professional. (Check out our Furnace Preventative Maintenance blog)
  6. Clogged Air Filter
    Filters can become clogged with dirt and debris. When the filter is clogged, ignition can be affected, and the result is your furnace blowing cool air. Replacing or cleaning a filter can be a messy job. Leave it to the professionals.
  7. Dirty Oil or Gas Burner
    If the furnace burner itself is neglected, accumulated dust and grime can cause trouble in igniting. Have your system professionally cleaned to take care of this problem.

The reasons listed above could be prevented with a Preventative Maintenance program from Hardy Services.



Creating A Happy Work Environment With Climate Control

Work Climate Control

In virtually every office, “thermostat wars” rage: some like it hot, while some like it cold, and companies find it impossible to please everyone.

In a recent study by the Indoor Environment Group,, some key findings were made:

  1. 50% of respondents say they were dissatisfied several times with the temperature in their office.
  2. 42% of the respondents say they are too warm during the summer, while 56% report they are too cold during the winter.
  3. 60% of the respondents say that having more control over their office’s temperature would increase their productivity.
  4. The median preferred office temperature for women is 72 degrees Fahrenheit, compared to 70 degrees Fahrenheit for men.
  5. Frequency of dissatisfaction with temperatures increases with age: Employees between the ages of 46 to 55 are 36% more likely to be dissatisfied with their environment than their coworkers between the ages of 18 to 25.

Modern day technology and Building Automation Software could be a great way to show your employees the concern and willingness to create a happy work environment.

Please consider Hardy Services for your Building Automation needs. Let Hardy Services be a part of accomplishing your business goals by helping your employees be more productive.

If you’d like to set up a time to discuss your Building Automation needs, please call us at 591-5678 or visit us at


Warning Signs Your Commercial Property May Have a Leak

Water leaks can be devastating to not only your home, but also to your office or business. Even the smallest leak can lead to extensive damage to your facility. Here are a few signs you can look for and hopefully help prevent further damage to your property due to a potential water leak.


  1. Sudden Increase in Water Bill
    Commercial facilities can use thousands of gallons of water each day. If you notice a rise in your water bill, you could have a water leak.
  2. Inconsistent Water Pressure
    Inconsistent water pressure in your facility could be due to cracks or holes in your piping. As a result, you could be flushing money down the drain.
  3. Damp Locations
    If you notice the ceiling or drywall is discolored or damp, you could have a water leak.
  4. Newly Developed Cracks
    Noticeable cracks should be monitored. This could mean that water is pushing into the concrete in the foundation of your property or water is causing the ground beneath the foundation to move causing the newly developed cracks.
  5. Depressions or Holes
    If you notice any new holes or newly developed depressions around your property, do not ignore them. Any holes in the grass or concrete should be addressed immediately.


All of the issues listed above should be taken seriously as they could result in loss of time or damage to the property, and the costs to repair the property could continue to grow.

If you have any questions or need to build a relationship with a commercial plumber, please consider Hardy Services for all you Plumbing, HVAC and Controls needs.



Don’t Get Spooked By Noises of a Freaky Furnace

It’s hard to believe that “Old Man Winter” is right around the corner and with cooler temperatures approaching it won’t be long before we are turning on our furnaces. As we start our furnaces for the first time, we may encounter some “spooky” noises. As equipment ages or sits dormant during their off-season some problems can arise during their start-up. Here are just a few reasons you may hear some of those “spooky” noises:


  • Squealing Noises- Can arise from worn belts, worn bearings, or other system
    components that have begun to wear excessively.
  • Rattling- Rattling noises will typically occur when a part or parts have become
    loose and rattle due to vibration in the system or air-flow.
  • Loud Whistling- Can occur when there is an obstruction or mechanical issue that
    is causing a break in the air-flow. The whistling comes from air escaping
    through gaps, holes, or other areas not designed for air to flow through.
  • Grinding or Metal-On-Metal- Grinding sounds are very scary! These noises typically occur when components in the system are broken or very loose. Grinding sounds could cause a total system failure and should be addressed immediately.

You could help avoided these problems with a preventative maintenance program from a licensed Commercial HVAC provider.
Don’t be stressed by the spooky sounds of your furnace. Please consider Hardy Services for All your Furnace, HVAC and Building Automation needs.


Is Your Toilet “Laboring” or Constantly Running?

Here are a few of the main reasons your toilet is “Laboring” or constantly running:


Yes, your toilet has a flapper! It is located inside the base of the tank. The sole job of the flapper is to regulate the water flow from the tank to the toilet bowl. Before you flush the toilet, the flapper forms a tight seal and does not allow any water out of the tank. When you flush the toilet, the flapper is pulled up by a chain to an open position and allows all the water out of the tank, so the toilet will flush properly. Once the water is evacuated the flapper should fall back down into the closed position and allow the tank to refill.

If the flapper does not seal at the base of the tank perfectly, water will slowly drain into the bowl. The “running” sound will occur when water has drained from the tank into the toilet causing the fill valve ball to fall below the “full” point and the tank will begin to refill until the fill valve ball is back to “full”.

Flappers fail due to age, warping, cracking, debris or build up around the seal.


The chain connects the flush valve to the flapper. If the chain is too short it can keep the flapper from sealing to the bottom of the tank. Or if the chain is too long, it may begin to catch on other elements inside the tank or get caught underneath the flapper and not allowing the flapper to seal. Thus causing your toilet to be constantly “running”.


The fill valve regulates the amount of water inside the tank. Once the toilet is flushed the fill valve drops below the suggested water level, the water is introduced into the tank, and once the fill valve reaches the “full” level the water should shut off and the tank should be full.
If the fill valve becomes faulty the result could be a “running” toilet as it will not reach the “full” level and the water will constantly run.

If the above issue occur and you need to call a certified commercial plumber. Please consider Hardy Services for your commercial plumbing needs.


Benefits of Building Automation Systems

Today’s Building Automation Systems serve as the central nervous system for Commercial HVAC Systems.  These systems monitor and regulate the performance of the Heating, Ventilation, and Air Conditioning year-round.  Here are just a few examples of how a Building Automation System can be beneficial to you and your commercial HVAC system.

Building Automation Systems allows you the control over the buildings environment.  Whether you are in the office or out and about you can control the set points for the system, monitor the effectiveness of the system, and ensure comfort throughout the building.

Consistency and Comfort
Building Automation Systems can help maintain a more even temperature throughout the spaces you specify.

Lower Utility Bills
According to a report published by in Sept. 2017, on average, installing a Building Automation System can decrease your utility costs up to 29%.  This savings could help offset the cost for a Building Automation System.  Then combined with a Preventive Maintenance Program (PMP), could lead to even more of a savings on your utility costs.

Less Time on Complaints
Facilities that have temperature fluctuations tend to receive significantly more complaints in the maintenance or facilities department.  These complaints can be time consuming to address as well as taking time away from other facility needs.

Less Downtime
Downtime in a production environment is costly.  It’s not only costly in terms of revenue but also expensive on the immediate repairs.  Building Automation Systems can significantly reduce downtime by extending the life of your HVAC equipment and by providing warnings on potential system issues before they arise.




Whether you own HVAC equipment or are in the business of repairing it, you will experience firsthand the many noises your equipment may make.  As with any equipment malfunctions tend to occur creating a variety of noises. This blog covers some of these noises and their possible causes.



A rattling noise could be a result of a loose belt, panel, fan, or something as simple as a few loose screws.  Rattling could also be a result of a failing motor, a bent fan blade, or many other items that could be a result of having aged equipment.


Growling noises could be a result of a failing compressor. If you hear a roaring/growling noise turn the system off and contact your HVAC service provider.


Chirping noises may be a sign of dry bearings, the fan rubbing against the coils or blower cage, or a worn belt.  Make sure the chirping is consistent before “hitting the panic button”.


Equipment that starts making a clanking noise could be a result of loose parts, such as the blower motor fan, blades, or loose pipes rubbing together.  If not addressed these can cause costly damage to your system.  If you hear a clanking noise, turn your system off and contact your HVAC service provider.

Remember, it is important to have a relationship with a reliable and dependable HVAC service provider.  The most important part of any equipment is keeping it maintained on a consistent basis.


How to Determine the Age of Your HVAC Equipment

Why is the age of you HVAC equipment important?? Glad you asked.

Here are just a few reasons why you may want to know the age of your HVAC equipment:

  • Budgeting Purposes – (it is getting close to the end of the fiscal year and you may need to budget for a new unit)
  • Energy Efficiency (Spring into Action blog)
  • Help in Replace/Repair Decision (Avoid HVAC Breakdown blog)
  • Cost of maintenance and Preventive Maintenance

Finding the Manufacturer Date on Your Commercial HVAC

To find the age of the equipment, look at the outside cabinet of the air conditioning system. You will find a metal nameplate attached containing the system’s technical specification. On most units this is located on the backside of the cabinet. Sometimes the manufacturer birthdate will be listed as MFR DATE. If that is the case, then you know the age of the equipment. If the MFR DATE isn’t listed then look at the model and serial number that is given specifically for each piece of equipment. You can enter the serial number in your internet search engine or you can decode the number yourself. Example: if the serial number is 7754F312026…… that would mean that the unit was manufactured in the 31st fiscal week of 2012, i.e. March 2012. Here is how you can know this. The 12 in this serial number represents the year, the 31 is the fiscal week, and just for fun the 2 is the work day of the week this unit was “born”.



Call Hardy Services for any questions or needs for your commercial HVAC, Plumbing & Controls needs.

When Should I Call A Commercial Plumber?

Plumbing issues happen in all commercial and industrial buildings and as a result all businesses are faced with the question, “When do I call a professional or can I fix this problem myself?”

Below are some helpful hints to know when you need to call a professional plumber.

Here are some Helpful Hints from Hardy Services so you will know when to call a commercial plumber:

  • You smell gas inside your facility
  • Your water bill spikes
  • You notice pressure surges when using sinks and toilets
  • Low to No water pressure
  • Foreign items are put down your plumbing system
  • You need kitchen equipment installed
  • You receive a letter from an attorney stating your bathrooms do not meet ADA requirements
  • You receive a notice from the water works needing your backflow presenter tested.

A contributing factor to your water bill spikes, water pressure problems, and other water flow issues can be leaks. Here are two typical leaks that occur:

  • Hidden leaks can result in nightmares for building owners. Once the leak is finally discovered, repairs may require removing walls, floors ceilings.Some signs to help spot a hidden leak are: unexpected increase in water bill, signs of water damage or stains along walls, floorboards, wet floors, carpets or other structures.
  • Underground leaks in sewer drains or other buried piping systems could lead to expensive repairs. In many cases, these types of leaks will require a visual inspection by remote video camera to pinpoint the location of the leak. When the leak is discovered, the pipes will have to be dug up and repaired.Some signs for underground leaks are: unexpected increase in water bill, areas of wet soil, or areas of grass that are growing faster than the surrounding areas.

Hardy Services is always trying to provide helpful and valuable information in our blogs! If you have any questions, please call us at 205.591.5678 or #Hardymakelifebetter

Is Your System Springing Into Action?

Spring time brings the beauty of trees and flowers blooming, BBQ’s, and outdoor fun. But it also brings showers, pollen, allergens, and warmer temperatures.

So, is your HVAC system ready to spring into action this season? Will your HVAC system operate efficiently or will the months that it has laid dormant cause your unit to not operate at all?

These can all be unsettling questions, and no one likes to worry about the temperature in the room. So, here are a few tasks that Hardy Services will complete on a Preventative Maintenance Program that will help your HVAC system run as optimal as possible and keep you, and everyone in the building, happy and comfortable!

Here are some other tasks that should be included in a Preventive Maintenance Program

  • Annual Coil Cleaning
  • Check system Air Flow
  • Inspection of the belts and pulleys
  • Check system refrigerant level
  • Check electric connections, igniters, burners, fans, motors, etc.
  • Clean and clear drain lines and drain pans
  • Replace filters #ToPleatorNotToPleat (Visit our Vlog:

One of the most important tasks, included in a Preventive Maintenance Program, is an annual coil cleaning. During the year your HVAC system collects dirt, grime, and buildup that the coils get covered and can’t do their job. If the coils are not able to release heat, that is generated during use, the equipment can overheat which could result in a catastrophic mechanical issue that will cause your HVAC system to not function. This is a prime example that if basic tasks are performed, big expenses can be controlled.

The most important part of having an efficient HVAC system is to make sure all equipment is operating at the highest levels. If you are using outside vendors for any service, please make sure you have a positive and long standing relationship with them. If your vendor isn’t providing you quality service that you and your equipment deserve then consider Hardy Services for all HVAC, Plumbing and Controls needs.