No Heat?
Same-Day Furnace Repair in Vancouver, WA
Furnace won’t stay lit, short-cycling, or blowing cold? We diagnose by measurement — flame signal, gas pressure, ignitor resistance, combustion — and every furnace repair includes a carbon-monoxide and heat-exchanger safety check.
Furnace problems we fix
The classic dirty flame sensor — common, cheap, and constantly misdiagnosed as something expensive. We measure the flame signal to be sure.
A cracked hot-surface ignitor, a failed gas valve, or a control-board fault.
Thermostat, a tripped limit switch, control board, or gas supply. We trace it, not guess it.
Heats, shuts off, repeats. Usually a clogged filter overheating the furnace and tripping the limit — or the flame sensor again.
Blower motor, capacitor, limit switch, or a fan-setting fault.
The safety one. A crack lets combustion gases mix with your air. We inspect it on every visit.
A no-heat call is also a safety check
A gas furnace makes carbon monoxide by design, and the heat exchanger is the wall that keeps it out of the air you breathe. When that wall cracks, CO can leak into the house — and you can’t see or smell it. So on every furnace repair we run a combustion analysis (measured CO and draft) and inspect the heat exchanger. If it’s cracked, we show you and shut it down — running a furnace with a cracked heat exchanger isn’t a repair we’ll pretend is fine.
How we actually diagnose it
Most “my furnace is broken” calls come down to a handful of measurable things. So we measure: the flame-sensor signal in microamps, ignitor resistance, gas manifold pressure on a manometer, limit- and pressure-switch operation, and combustion output. That’s how a cheap flame-sensor cleaning doesn’t turn into a control-board sale — and how a real safety problem doesn’t get missed. Measured, not guessed.
What it costs — and repair or replace
Credited toward any repair over $500 — and the CO / heat-exchanger safety check is part of it, not an add-on. You get the measured findings and a written price before we do the work. No “trust me,” no mystery invoice.
The call comes down to age (most furnaces run 15–20 years), the specific repair, and safety. A flame sensor, ignitor, or capacitor on a mid-life furnace is an easy fix. A cracked heat exchanger on an older unit usually means replace — that’s a safety line, not a sales pitch. We give you the numbers both ways and tell you plainly. Furnace Installation →
Why homeowners trust us
No surprises, no pressure
Diagnose
We measure flame signal, gas pressure, ignitor, and combustion — plus the CO / heat-exchanger safety check. Measured, not guessed.
Written price
You get the findings and a fixed repair price before we start. $99 diagnostic credited toward repairs over $500.
Fix & verify
We make the repair and re-run combustion to confirm it’s heating safely before we leave.
Repairs run 10–20% less on a maintenance plan, and a yearly combustion check catches safety issues before winter.
Same-day across Clark County, WA
What Vancouver homeowners say
Straight answers
My furnace lights, then shuts off after a few seconds — what is it?+
My furnace won’t turn on at all — what’s wrong?+
Is a cracked heat exchanger dangerous?+
My carbon-monoxide alarm went off — what do I do?+
What’s your diagnostic fee?+
Should I repair or replace?+
My blower won’t shut off — is that bad?+
Do you fix electric furnaces too?+
Book a furnace repair
No heat? A real technician answers — not a call center. Prefer to talk? Call 971-294-1215.
Why “Heisenberg”?
Werner Heisenberg (1901–1976) was a Nobel Prize–winning physicist and a founder of quantum mechanics, best known for the Uncertainty Principle — there’s a hard limit to how precisely you can measure two things at once.
We borrowed the name for the opposite reason: in HVAC, guessing is the enemy. We measure everything — flame signal, gas pressure, CO, draft — so there’s no uncertainty your system is done right and safe. The science of clean air.