Burner and heat exchanger cleaning
We pull the burner assembly, brush each burner, and vacuum the heat exchanger surface. A dirty exchanger loses efficiency and can hide cracks. We inspect visually and with a combustion analyzer before reassembly.
Furnace maintenance Milwaukie OR is the once-a-year service that keeps your system running through Clackamas County winters. We inspect the heat exchanger, clean the burners, test the ignition, and swap your filter. If you have never had a furnace tune-up in Milwaukie Oregon, October is the right month to start. We serve homeowners, landlords, and small commercial spaces from Downtown Milwaukie to Oak Grove.

Furnace maintenance Milwaukie OR is a hands-on inspection and cleaning of your heating system, not a quick filter swap. We pull the burner assembly, brush the heat exchanger, check the flue for blockages, and test the igniter and flame sensor. We measure gas pressure at the manifold with a manometer and verify temperature rise against the data plate. If your furnace has a capacitor or contactor near the end of its life, we catch it before it strands you on a 28-degree night.
Milwaukie homes deal with wet winters, leaf-clogged intake vents, and older ductwork that leaks 20 to 30 percent of conditioned air. A furnace tune-up Milwaukie Oregon addresses all three: we clear the intake, seal accessible duct joints, and check the PVC condensate line for algae. If you have been searching for furnace maintenance near me Milwaukie OR, this is the service that prevents the 2 a.m. no-heat call. We also flag any carbon monoxide risk with a combustion analyzer before we leave.
Our standard furnace maintenance visit covers a 21-point inspection and cleaning. That includes everything needed to verify your system is safe and running at spec. Repairs and replacement parts are quoted separately, and we always show you the price before we start.
We pull the burner assembly, brush each burner, and vacuum the heat exchanger surface. A dirty exchanger loses efficiency and can hide cracks. We inspect visually and with a combustion analyzer before reassembly.
The igniter and flame sensor are the two most common no-heat failures. We clean the sensor, test the igniter resistance, and check the flame signal. If either is weak, we replace it on the spot with a part from the truck.
We measure manifold gas pressure with a manometer and compare it to the data plate. Then we run a full heating cycle and check temperature rise at the supply and return. Both readings tell us whether the furnace is running safely and efficiently.
We lubricate the blower motor bearings, check the wheel for debris, and test the run capacitor with a multimeter. A weak capacitor draws higher amps and shortens motor life. Catching it early saves a $400 motor replacement.
We swap your filter with a standard 1-inch pleated filter and check the return grille for blockage. If your ductwork has obvious leaks at accessible joints, we seal them with mastic. Better airflow means lower gas bills.
High-efficiency furnaces produce condensate that drains through a PVC line. Algae clogs that line and trips the pressure switch. We clear the line, check the flue for blockages, and verify the inducer motor draft.
Call (855) 947-9500 or book online. We ask for your furnace brand, model, and whether it is gas or electric. You get a two-hour arrival window and a text when the tech is 30 minutes out. Most Milwaukie tune-ups get scheduled within 48 hours during October and November.
The tech starts with the thermostat, then moves to the furnace. We pull the front panel, inspect the burners, heat exchanger, and inducer motor. We check the flue, the gas valve, and the wiring harness. Expect 20 to 30 minutes for this phase on a typical Carrier or Trane unit.
We brush the burners, vacuum the blower compartment, and clean the flame sensor. We test the igniter, check the capacitor with a multimeter, and verify gas pressure with manifold gauges. Then we run a full heating cycle and measure temperature rise at the supply and return.
We swap your filter and check the return grille for blockage. If your ductwork shows obvious leaks at accessible joints, we seal them with mastic. We also check the condensate line and clear any algae buildup. This step takes about 15 minutes and prevents most airflow complaints.
You get a written report with readings, photos, and any parts we recommend replacing. We do not upsell. If your furnace is fine, we tell you it is fine. If a $40 capacitor is getting weak, we show you the reading and let you decide. The whole visit runs 60 to 90 minutes.
Call (855) 947-9500 or book online. We ask for your furnace brand, model, and whether it is gas or electric. You get a two-hour arrival window and a text when the tech is 30 minutes out. Most Milwaukie tune-ups get scheduled within 48 hours during October and November.
Measures flue gas oxygen, carbon monoxide, and temperature to verify safe combustion and catch a cracked heat exchanger.
Checks gas manifold pressure against the data plate to confirm the furnace is firing at the correct rate.
Tests igniter resistance, capacitor microfarads, and blower motor amp draw to catch weak components before they fail.
Sniffs for gas leaks at the valve, manifold, and supply connections before we leave the job.
Straightens bent condenser fins and clears debris from the blower compartment and accessible duct runs.
Used on heat pump and AC side of the system for evacuation and refrigerant recovery under EPA Section 608 rules.

A homeowner in Downtown Milwaukie had a 2006 Carrier furnace that had never been serviced. The flame sensor was coated black, the blower wheel was caked with dust, and the filter had not been changed in two years. The furnace short cycled and the house heated unevenly.
After: We cleaned the flame sensor, blower wheel, and burners, then replaced the filter. Temperature rise came back into the manufacturer's range. The short cycling stopped and the homeowner reported the house heating faster with a lower gas bill the next month.
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A landlord had three rentals in Oak Grove with furnaces from 2004, 2008, and 2012. None had been serviced in three years. One unit had a weak capacitor drawing high amps, and another had a clogged condensate line that tripped the pressure switch twice last winter.
After: We tuned all three furnaces in one week. The weak capacitor was replaced on the spot, and we cleared the condensate line and added a trap guard. No emergency calls from tenants that winter, and the landlord got written reports for each unit.
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A newer home in North Clackamas had a high-efficiency condensing furnace that was tripping its pressure switch every few days. The homeowner had already replaced the filter with no change. The condensate line was partially blocked with algae.
After: We cleared the condensate line, cleaned the trap, and verified the inducer motor draft. The pressure switch faults stopped immediately. We also checked the heat exchanger and combustion readings, which were within spec.
Book this service →Most winter no-heat calls start as small issues a tune-up would have caught. Here are the ones we see most often in Milwaukie.
Ask a pro →We test the igniter, flame sensor, and gas valve during the tune-up. If any component is weak, we replace it before winter. Same-day furnace maintenance Milwaukie OR slots are available for urgent cases.
We clean the blower wheel, swap the filter, and check temperature rise. Restoring airflow typically cuts gas use by 5 to 10 percent. We also seal accessible duct leaks that waste conditioned air.
Common causes are a clogged condensate line, a dirty flame sensor, or an oversized furnace. We clear the line, clean the sensor, and verify the system is sized correctly. If it is oversized, we tell you.
We inspect the heat exchanger visually and test flue gases with a combustion analyzer. If we find a crack, we red-tag the furnace and give you replacement options. Safety comes before any repair sale.
Most furnace tune-ups in Milwaukie run $129 to $249 in 2026, depending on system type and accessibility. A standard gas furnace with a clean install sits at the low end. High-efficiency condensing units, heat pumps, and systems in tight crawlspaces run higher. That price covers the full inspection, cleaning, filter swap, and written report. Repairs are quoted separately before we start.
Once a year, ideally in early October before the first cold snap. Milwaukie winters are wet and mild compared to eastern Oregon, but your furnace still runs 4 to 6 months a year. Annual service catches worn igniters, dirty flame sensors, and clogged condensate lines before they strand you. If you have pets or a dusty home, consider a filter change every 60 to 90 days between visits.
Our tune-up covers a 21-point inspection: burner cleaning, heat exchanger check, flame sensor cleaning, igniter test, gas pressure verification, blower motor lubrication, capacitor and contactor testing, flue inspection, condensate line clearing, filter replacement, and a full heating-cycle temperature-rise test. You get a written report with readings and photos. We also check your thermostat calibration and airflow at the return grille.
We do. Our annual furnace maintenance plan Milwaukie Oregon covers one full tune-up per year, priority scheduling, and 10 percent off any repairs. Plan members get first access to same-day slots during cold snaps. Call (855) 947-9500 and ask about the annual plan. It pays for itself the first time you skip an emergency call-out fee.
October and November fill up fast. Call (855) 947-9500 and we will get you a two-hour arrival window, usually within 48 hours. Flat-rate pricing, NATE-certified techs, and a written report when we finish.
Book tune-up (855) 947-9500 →Call (855) 947-9500 any time, day or night, and a live dispatcher will get a tech headed your way. Regular office hours run 8 a.m. to 6 p.m. Monday through Friday, with 24/7 emergency coverage for no-heat and no-cool calls. You can also email info@thermexapro.com and we will reply the same business day.