There are numerous cooling, heating problems that don’t require professional service! By working very carefully and with a little elbow grease, you can save some money and get a better idea of what makes your system work. That’s why we’ve put together some useful fix-it-yourself tips.
These tips cover some of the most common problems that occur with air conditioners and furnace systems.
Air Conditioning Troubleshooting Tips
If these Quick Tip solutions do not solve your problem, please call to schedule an appointment with Hartman Plumbing Heating and Air Conditioning. For emergency service please call 1-801-505-9460 (Park City 435-571-0505).
The Air Conditioning System is Not Cooling or Working Properly
Be sure power switch on furnace or blower is on.
Check that blower compartment door is properly aligned and secure.
Check for blown fuse or tripped circuit breaker.
Check the thermostat setting. Make sure that it is set to a low enough temperature.
Was the air conditioning unit turned off for an extended period of time?
Make sure the thermostat is set on “COOL”.
Is your filter clean? A blocked filter can reduce your unit’s performance. Also, check and replace your filter on a regular basis to allow your unit to perform at peak efficiency.
Quick Tip: Keep the air conditioning unit set at a comfortable temperature during the entire day. Many times, people turn off their systems when not at home. The system may take some time to begin circulating properly cooled air when it has been shut down for a while.
The Readout on the Thermostat Display is Blank
Check to see if your thermostat indicator is switched to “COOL” to activate the display. If this doesn’t work, remove the existing batteries and replace them with fresh ones.
Some digital thermostats have a “reset” button on the pad. Press this button to restore the original settings and-in some cases-the readout.
Quick Tip: If you find yourself replacing the batteries more than the recommended number of times per year, a short could exist in the control panel that should be checked by a Hartman Technician.
The Thermostat Continues to Post the Same Message
Make sure your system has not been set to the lowest possible temperature. (A system turned all the way down doesn’t cool any faster than one that’s set to a comfortable temperature.)
Was there a power outage that acted as a reset feature?
Quick Tip: Many times a more serious problem has occurred due to a power outage or a lightening strike. If everything else seems normal (room comfort, run time, etc.) and resetting does not restore normal function, the best solution is to call a Hartman Technician
The Air Conditioner Timer Does Not Work
Make sure that your control unit is properly programmed to the correct temperature and on “COOL”. It’s not uncommon for different systems to be programmed differently. Use the owner’s manual to make sure the correct procedures are being followed.
If the problem persists, try replacing the batteries in the control unit.
Finally, are you on load management through the utility company? Check to see if the green light is displayed on the load management box. If a green light is present, the system should be working. If a red light is displayed, then the system might have been turned off by the utility company. If there is no light displayed, then you need to call the utility company and a Hartman Technician.
Quick Tip: Many times the batteries need to be replaced for the system to properly function. If replacing the batteries and checking to see if the settings are properly set do not work, consult a Hartman Technician. Also, if your utility company provides load management, consult them with any problems that you might be experiencing.
Heating Troubleshooting Tips
If these Quick Tip solutions do not solve your problem, please call to schedule an appointment with Hartman Plumbing Heating and Air Conditioning. For emergency service please call 1-801-505-9460.
The Central Heating System is not heating or working properly
- Be sure power switch to furnace is on.
- Check that blower compartment door is properly aligned and secure.
- Check for blown fuse or tripped circuit breaker.
- Is your thermostat set to the “HEAT” position?
- Is your thermostat at the proper setting? (Not the highest possible temperature!)
- Was the furnace turned off for an extended period of time?
- Check the filter to see if it needs replacing or cleaning.
- Check the fuel source.
Quick Tip:Keep the furnace set to a comfortable temperature during the entire day. Many times, people turn off their systems when not at home. The system takes some time to begin circulating properly heated air when it has been shut down for a while. Remember that the furnace will not heat your home faster by setting the temperature to its limits! Set the thermostat to the proper temperature for efficient heating.
Furnace Thermostat Continues to Post the Same Message
Make sure that your system has not been set to the highest possible temperature. Remember that a system set to a comfortable temperature will heat just as quickly as one set for maximum heat!
Was there a recent power outage that may have caused the system to reset itself?
Quick Tip: Many times a more serious problem has occurred due to a power outage or a lightning strike. If everything else seems normal (room comfort, run time, etc.) and resetting does not restore normal function, the best solution is to call a Hartman Technician.
The Readout on the Thermostat Display is Blank
Check to see if the thermostat indicator is switched to “HEAT” to activate the display. If this does not work, replace the existing batteries with fresh ones to see if the display functions properly.
Some digital thermostats have a “reset” button on the pad. Press this to restore the original settings and-in some cases-the readout.
Quick Tip: Many times when the thermostat display flashes a repeating message, the batteries need to be replaced. If you find yourself replacing the batteries more than the recommend number of times per year, a short could exist in the control panel.
Furnace Does Not Work
Make sure that the control unit is properly programmed to the correct temperature and on “HEAT”. Many times systems need to be programmed differently. Use the owner’s manual to make sure the correct procedures are being followed.
If the problem persists, try replacing the batteries in the control unit.
Finally, are you on load management through your utility company? Check to see if the green light is displayed on the load management box. If a green light is present, the system should be working properly. If a red light is displayed, the system might have been turned off by the utility company. If there is no light displayed, then you need to call the utility company and a Hartman Technician.
Quick Tip: Many times the batteries need to be replaced for the system to properly function. If replacing the batteries and checking to see if the settings are properly set do not work, consult a Hartman Technician. Also, check with the utility company if the system is not working due to load management.




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