No heat coming through
Heating and Furnace Repair in Norcross
Warmth back in the house, the office or the sanctuary, with every safety on the furnace checked before we leave.
When the Furnace Leaves the Building Chilly
Norcross winters spend most of their days on the gentle side, and that is precisely why furnace trouble catches people off guard. The heating section sits nearly idle through months of air conditioning, then the first serious freeze rolls in and the furnace clicks, tries for a flame and quits, or the blower moves air with no warmth behind it. HVAC Norcross repairs gas and electric furnaces in houses, offices, shops and sanctuaries, and we follow a fixed sequence so the true fault turns up instead of a lucky guess. On gas equipment that sequence runs through the hot surface igniter, the flame sensor, the draft inducer, the pressure switch, the high limit and rollout switches and the gas valve, plus the flue and any flashing codes on the control board. On electric equipment it covers the heat strips, sequencers, relays and the blower. A furnace that starts and stops in short bursts is often overheating behind a choked filter or a starved return, and the limit is simply protecting the heat exchanger, so we chase the reason for the heat as well as the switch that tripped. One firm rule: if you ever smell gas, skip the thermostat and the light switches entirely. Get everyone outside, call the gas company or 911 from there, and phone us once the utility has made it safe. For anything else, confirm the thermostat is on heat, the filter is reasonably clean and the service switch beside the furnace is on before you call.
Parts Behind a Norcross No-Heat Ticket
Most cold-house and cold-office calls come down to one of these components.
Igniter that will not glow
Cracked or weakened hot surface igniters changed out so the burners catch every time.
Flame sensor fouling
Sensors cleaned or replaced when the furnace lights, then drops the flame seconds later.
Draft inducer and pressure switch
The draft fan and its pressure switch checked whenever the furnace stalls partway through its start sequence.
High limit lockouts
The overheating behind a tripped limit tracked to a choked filter, a starved return or a weak blower.
Blower assembly
Motor, capacitor and wheel checked so the warmth actually travels to the rooms.
Heat strips and sequencers
On electric furnaces and air handlers, heat strips, sequencers and relays are each put on the meter.
Board codes decoded
Flashing diagnostic codes read and matched to the fault, especially when the failure comes and goes.
Flue and safeties verified
Burners, venting and every safety control proven before the heat is switched back on for good.
Working a Norcross Furnace Call
Tell us what the furnace did
Clicking with no flame, cool air from the vents, the furnace starting and stopping: these details point the technician in the right direction before arrival.
Test the start sequence in order
The furnace is run through its sequence while each component is tested. You hear what failed and what it costs to fix before any work begins.
Fix it and prove it safe
Once the repair is made, the furnace is cycled several times while burners, venting and safety controls are checked, so it keeps running through the cold nights ahead.
Why Owners Trust Us With Their Heat
A sequence, not a hunch
Our techs walk the furnace through its startup one stage at a time, so nothing gets replaced on a whim.
Venting checked every time
Venting and safety controls are checked on every furnace we repair, not just the part that failed.
Someone answers on freezing nights
If the heat quits in the middle of the night, the emergency number is staffed at any hour.
- Gas and electric heat
- Every safety proven
- Cost approved before parts
- Houses, offices, sanctuaries
Norcross Furnace Blowing Cold or Refusing to Start?
Look at the thermostat setting and the filter first, and if the heat still will not come, phone us. We will help pin down the cause and send a technician.