Furnace Repair Maintenance in Mequon, WI
Furnace Repair Maintenance in Mequon, WI
When the temperature drops in Mequon, WI, a reliable furnace is essential for comfort and safety. Extended cold seasons along Lake Michigan mean furnaces run longer and face more stress than in milder regions.

Why Mequon homes need targeted furnace care
Mequon experiences long, cold winters and significant temperature swings in shoulder seasons. That leads to:
- Longer run times that increase wear on components like motors and igniters.
- Condensation and freeze/thaw cycles that can accelerate corrosion in venting and heat exchangers.
- Frequent on/off cycling during transitional weather, which stresses thermostats and control boards.Targeted diagnostics and preventive maintenance reduce breakdown risk, protect indoor air quality, and help avoid carbon monoxide hazards during high-use months.
Common furnace issues in Mequon homes
- Furnace not starting or intermittent ignition • Causes: faulty igniter, bad flame sensor, gas valve issues, thermostat miscommunication.
- Weak or uneven heating • Causes: clogged air filters, failing blower motor, duct restrictions, burner problems.
- Short cycling (turns on and off quickly) • Causes: oversized unit, dirty filters, faulty thermostat, overheating due to blocked vents.
- Strange noises (banging, rattling, squealing) • Causes: loose panels, failing bearings in motors, cracked heat exchanger, belt issues.
- Increased energy bills with normal usage • Causes: poor combustion efficiency, failing motor, dirty burners, uncalibrated thermostat.
- Carbon monoxide concerns or furnace odor • Causes: incomplete combustion, cracked heat exchanger, blocked flue or venting.
Diagnostic process — what a thorough inspection covers
A professional diagnostic typically follows a systematic approach to pinpoint root causes, not just symptoms:
- Visual inspection of the furnace cabinet, vents, and combustion area for corrosion, soot, or leaks.
- Check and test the thermostat settings and wiring to confirm valid call for heat.
- Start-up sequence observation: ignition behavior, flame pattern, burner operation, and blower response.
- Electrical checks: control board diagnostics, capacitors, motor amperage, and limit switches.
- Combustion analysis and carbon monoxide testing to verify safe fuel-burning performance.
- Measure airflow and duct performance to identify blockages or leaks affecting system efficiency.
- Clear, itemized diagnostic report describing issues, required parts, and repair options.
Parts replacement: symptoms and what to expect
- Burners: signs include yellow or uneven flame, soot buildup, or failing heat output. Replacing or cleaning burners restores proper combustion.
- Igniters and pilot assemblies: common cause of no-start conditions. Modern hot surface igniters are fragile and show visible cracks or slow glow before failure.
- Thermostats: inaccurate temperature readings, constant cycles, or no response — calibration or replacement with a compatible model is often required.
- Blower and draft inducer motors: symptoms include weak airflow, humming noises, or failure to start. Replacing motors restores circulation and proper venting.
- Flame sensors and limit switches: when dirty or failing they cause shutdowns; replacement prevents nuisance lockouts.
- Heat exchanger concerns: visible cracks or corrosion require careful assessment; a cracked exchanger is a critical safety issue that often necessitates major repair or replacement.
Emergency repair response and safety protocols
In cases of system failure that present a safety risk (no heat in extreme cold, strong gas smell, or carbon monoxide alarms), immediate safety-first actions are standard:
- Ventilate: open windows and doors if a gas odor or CO is suspected.
- Shut off fuel source if safe to do so and do not operate the furnace.
- Evacuate occupants if CO alarms are sounding or anyone experiences symptoms like headache or dizziness.
- Professionals prioritize isolating the hazard, conducting on-site combustion and CO testing, and applying temporary measures to secure the home until permanent repairs are performed.Emergency responses focus on safety checks, isolation of dangerous components, and rapid restoration of safe operation.
Preventive maintenance checklist for Mequon winters
A comprehensive tune-up before the heating season addresses the stresses unique to the region:
- Change or clean air filters and check filter housing.
- Inspect burners, clean and calibrate fuel/air mixture.
- Test and clean the igniter, flame sensor, and pilot assembly.
- Inspect heat exchanger for signs of corrosion or cracks.
- Check venting and flue for blockages, corrosion, or improper termination.
- Lubricate motors and bearings where applicable and verify motor amperage.
- Test limit switches, safety controls, and thermostat calibration.
- Check blower assembly, belts, and airflow; inspect ducts for obvious leaks.
- Perform carbon monoxide and combustion efficiency testing and document results.Routine maintenance reduces emergency repairs, improves efficiency, and helps appliances last longer in demanding Mequon winters.
Pricing transparency and common service structures
Furnace repair and maintenance pricing is typically broken into clear components:
- Diagnostic or service visit fee that covers the time to inspect and test the system and provide a written estimate.
- Parts and labor listed separately on repair estimates so homeowners can see the cost breakdown.
- Preventive maintenance plans often offered as scheduled annual or biannual visits with a set scope of work and documented safety checks.Clear estimates and descriptions of replaced parts help homeowners make informed choices and preserve warranties.
Recommended frequency and maintenance plans
- Annual heating tune-up: recommended for most Mequon homes, scheduled in fall before sustained cold.
- Older systems (10+ years) or homes with heavy usage: consider twice-yearly checks to catch wear early.
- Homes with occupants sensitive to indoor air quality or with combustion appliances in tight basements: regular CO and combustion testing is especially important.Maintenance plans that include scheduled inspections, priority service windows, and documented safety testing tend to extend equipment life, reduce emergency repairs, and maintain higher efficiency across long Wisconsin heating seasons.
Maintenance Plan
SILVER PLAN (Heating & cooling packages
Our Silver Plan provides you with year-round, worry-free protection. The benefits include:
$129.95
/plan cost every 6 months
Inspection and cleaning of your system during service visits.
Next-day scheduling & 24-hour emergency service.
Full coverage for labor on repairs due to equipment failure.
15% Discount on all parts for repairs and upgrades.
15% Discount on additional system installation.

2
visits per year
1
year in duration
15%
discount on jobs
Cooling
Lubricate motors
Clean condensate line
Check fan belts
Check performance of system
Change filters
Check contactor points
Check evaporator air temperatures
Check pressure switches
Check wiring & connections
Clean condenser coil
Check refrigerant charge
Check temperature differential
Check operating pressures
Check evaporator coil
Check voltage and AMP draw
Heating
Lubricate motors
Check wiring & connections
Adjust controls if needed
Clean burners/flame sensor.
Adjust combustion air to burners
Check Ohms and amps of furnace
Check blower
Check heat exchanger for cracks (if accessible)
Change filters, standard pleated filters included
Check performance of system
Check air temperature rise
Check C.O. levels



