Carrier Factory Authorized Dealer

Available 24 hours
7 days a week!


Schedule An Appointment
Leave Us A Review

How to Troubleshoot Your Boiler Issues in Gainsville

water heater thumbs upBoilers aren’t terribly complex machines, however, they have a lot of parts that must work properly for the system to function. As with all mechanical devices, boilers will wear out and need replaced over time. In fact, the better you take care of minor boiler repair issues as they arise, the less likely you’ll need a full boiler replacement down the road.

Some common issues to be aware of include the following:

  • Gas supply – Make sure the stopcock is allowing gas to flow freely. If it’s not, there could be a blockage or a problem with the supply itself. If you have an oil boiler, make sure there’s enough in the tank at all times.
  • Incorrect central heating pressure – Most boilers are set to one bar per manufacturer’s specifications. You will want to check this (or have your HVAC contractor look at it) and ensure the boiler’s settings are what the manufacturer has recommended.
  • Malfunctioning thermostat – Thermostats age and can lose accuracy. This can cause the boiler to turn on and off at the wrong times. This can not only sap your energy bill, but leave you without any heat or hot water during times when you need it.
  • Loose circuits and faulty electronics – If you have an LCD display, the circuit board and relays can come loose and fail over time. While it’s relatively simple to disconnect and attach a new one, it’s still a task you want to have an HVAC professional handle.
  • Frozen condensate pipes – Extremely cold weather can cause the moisture within the pipe to freeze and create a blockage that will shut the boiler down. If  you’re getting error messages and the boiler is shutting down at odd times, defrost the pipe and see if that solves the issue. If not, boiler repair is likely required.

For more information about boiler repair and other home comfort services, contact Brennan’s Heating & Air Conditioning. For the past 30 years, we’ve proudly served clients in the Gainsville area.

You May Also Like

Need AC Repair
June 10, 2026

Does Your AC System in Fairfax, VA, Need Repair? Call 24/7!

The air inside your Fairfax, VA, home has turned thick, stale and suffocating. Your air conditioner hums along, but nothing cool is… Continue Reading Does Your AC System in Fairfax, VA, Need Repair? Call 24/7!

Read More…

AC Maintenance
April 21, 2026

Schedule AC Maintenance in Woodbridge, VA, ASAP to Save More

The difference between an inexpensive tuneup and an expensive emergency repair often comes down to one decision: scheduling AC maintenance in Woodbridge,… Continue Reading Schedule AC Maintenance in Woodbridge, VA, ASAP to Save More

Read More…

Must Fix Broken Furnace
February 4, 2026

Is It Easy to Fix a Broken Furnace in Lorton, VA?

When your furnace in Lorton, VA, breaks down, the question isn’t whether you need it fixed, but how quickly and safely you… Continue Reading Is It Easy to Fix a Broken Furnace in Lorton, VA?

Read More…

Compliance Settings
Increase Font Size
Grayscale
Simplified Font
Underline Links
Highlight Links
Reset
Close