When the heat goes out in Waukesha, WI, the clock starts running, and the diagnosis depends entirely on what kind of system is doing the failing. On a gas furnace, the most common no-heat call we run is a flame sensor coated in oxide: the burners light, the sensor cannot prove the flame, and the board shuts the gas down three tries later and locks out. Close behind come cracked hot surface igniters, stuck pressure switches, clogged condensate traps on high-efficiency models, and blower motors that have quietly worn out. Heat pumps fail differently: a weak defrost cycle leaves the outdoor coil buried under frost, a failed reversing valve strands the system in cooling, and a dead outdoor unit leaves the electric backup strips carrying the whole house at several times the operating cost.
Most of our service calls are for Furnace Repair. Start there if your system isn't running right.
Warning Signs for Heating Repair
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- Banging at startup caused by burners lighting late
- Burning, musty, or rotten-egg odors when the heat runs
- A furnace that tries to light, clicks, and then quits
- The system starting and stopping every few minutes without warming the house
- The thermostat calls for heat but the vents blow cold air or nothing
- Higher heating bills with less comfort to show for them
- A heat pump's outdoor unit encased in frost or ice
- Cold rooms in one part of the house while others are comfortable
Early Action Saves Money
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. If you notice any of these signs, call (262) 401-5105 for a prompt inspection.
