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Carbon Monoxide Alarm and the Furnace in Collierville, TN Homes
After the all-clear, one call to us reaches a local HVAC company for venting tests.
A carbon monoxide alarm near a furnace in Collierville, TN, calls for the CPSC's steps: get outside, then call 911 or the fire department. Per the CPSC, the furnace stays off until trained personnel service it. Once responders clear the home, we get a local heating and cooling company on the line to test combustion and the venting.
Who Calls About This
You face a carbon monoxide alarm as a homeowner, a condo or townhome owner, or a landlord, and the CPSC steps come first.
- Homeowners
- EPA lists leaking furnaces and blocked or disconnected flues among indoor carbon monoxide sources. That list is why we treat every alarm as a reason for a flue test.
- Condo and Townhome Owners
- Tennessee condo law places your unit's furnace on you and the common elements on the association, unless the declaration says otherwise.
- Landlords
- Shelby County rentals fall under Tennessee's landlord and tenant act, which lists gas and heat as essential services. Renters follow the CPSC steps first, then check with the landlord before booking a repair.
Inside a Standard Furnace Repair
After the all-clear, testing falls under repairs on a gas furnace. The company then works through 7 checks:
Measures carbon monoxide in the flue gas during a full firing cycle.
Inspects the flue for blockage, corrosion, and partial or complete disconnection, the CPSC's list.
Looks for nests in the vent termination, a blockage the CPSC has warned about.
Confirms combustion air meets Section 9.3 of NFPA 54, as the manufacturer's manual requires.
Checks that an 80% Category I furnace vents through a listed metal liner or Type B vent, not an unlined masonry chimney.
Inspects the heat exchanger as part of the manufacturer's combustion and venting checks.
Tests the pressure switch and the rollout switch before the furnace returns to service.
Vent replacement, a chimney liner, and new alarms sit outside the testing visit. We recommend getting those prices separately, before any of that work starts.
Once the home is cleared, ask which combustion and venting tests come first and what each reading means.
(901) 613-0388Local Furnace Issues and What Your HVAC Company Does
These 5 alarm situations in Collierville homes each set what gets tested first.
| What you notice | What your HVAC company does |
|---|---|
| The alarm sounds and people in the home feel headache, nausea, or dizziness. | The CPSC names those as early carbon monoxide symptoms, so get outside and call 911. Furnace testing waits until responders allow re-entry. |
| The alarm sounds while the furnace runs, and nobody feels ill. | The CPSC steps still apply, and the HVAC company tests flue gas and inspects the vent once responders clear the home. |
| The alarm follows a long idle season for the furnace. | The CPSC has warned that birds, other animals, and insects nest in vents and block exhaust gases. The vent termination gets inspected for nests and debris. |
| The alarm sounds along with a gas smell. | Leave and call the gas utility from another location, as both local utilities instruct and as laid out under furnace smells. |
| The furnace does not start after the alarm event. | The ignition sequence gets tested after the venting checks pass, the same sequence used for a furnace not turning on. |
Steps From the First Call
The path back to a working furnace runs 5 steps, and your call comes after responders clear the home.
- 1
Call after the all-clear
Once responders let you back in, call us and describe when the alarm sounded. We bring a local heating and cooling company onto the call to plan the testing visit.
- 2
Leave the furnace off
You keep the furnace off until trained personnel service it, as the CPSC advises.
- 3
Host the testing visit
The HVAC company tests combustion and flue gas and inspects the venting, then explains the repair it recommends. Ask for a written estimate before work starts.
- 4
Approve the repair
Once you approve, the company fixes the fault it found, such as a disconnected flue joint.
- 5
Confirm the retest
The furnace fires again, and the carbon monoxide test repeats before regular use resumes.
What Affects the Price of Testing After a Carbon Monoxide Alarm
No public source lists a Collierville price for testing after a carbon monoxide alarm, so 4 factors shape the bill:
Factor 1
The Fault Found
A blocked vent, a disconnected flue joint, and a failed control each lead to different parts and labor.
Factor 2
Chimney Liner Needs
The manual prohibits venting a Category I furnace into an unlined masonry chimney, so a liner adds cost where one is missing.
Factor 3
Number of Appliances Tested
The CPSC urges yearly inspection of fuel-burning systems such as furnaces, fireplaces, and wood stoves, and each one in your home adds test time.
Factor 4
Replacement and Permits
Testing that ends in a change-out adds a Town of Collierville mechanical permit, and the permit holder requests inspections by phone, email, or iWorQ.
Ask what fault the tests found and what any vent work involves.
(901) 613-0388Codes and Permits That Apply in Collierville
The CPSC calls for alarms with battery power or battery backup on every level of the home and outside sleeping areas. It also says to avoid spots near heating vents, so tell the company where each alarm hangs.
Collierville enforces the 2018 International Fuel Gas Code, and the manual requires combustion air per Section 9.3 of NFPA 54. When an alarm ends in a furnace replacement, the Town requires a mechanical permit and a state or county licensed contractor for your job.
Coverage and Rebate Questions
MLGW's Share the Pennies program offers grants to low-income Shelby County homeowners for repairs that include HVAC repair or replacement. MLGW lists no furnace rebate of its own, and its site links to TVA EnergyRight instead. Program and coverage details continue in the furnace and AC questions.
What Should You Do When the Carbon Monoxide Alarm Sounds?
The CPSC gives these 4 steps, in this order, when a carbon monoxide alarm sounds:
- 1Move outside to fresh air without trying to find the source.
- 2Call 911, the fire department, or your emergency services from outside.
- 3Stay out of the home until responders say you can go back in.
- 4Keep the furnace off until trained personnel service it.
Combustion and venting tests come after responders clear the home, so ask for those readings when you call.
When Can the Furnace Run Again After a Carbon Monoxide Alarm?
The furnace can run again after responders clear the home and trained personnel service it, per the CPSC. That service tests flue gas for carbon monoxide and inspects the vent for blockage or disconnection. Before any restart, we suggest asking whether combustion air meets NFPA 54, as the manual requires.
Collierville Details That Change the Repair
- In ZIP 38028 around Eads, TN, utility gas heats 67.6% of occupied homes, per the Census Bureau, and the median home dates from 1996. MLGW serves its Shelby County side, and we tell Fayette County households there to read the gas bill for their utility.
- Mention your home's build year on the call, since 11.0% of Collierville homes date from 1979 or earlier, per the Census Bureau.
- The NOAA Collierville station records freezing temperatures on 74.5 nights a year, and a furnace safety inspection covers the CPSC's yearly flue check.
Before you dial
Questions Before You Call
Open any question below for its answer
Is It Safe to Restart the Furnace Once the Carbon Monoxide Alarm Stops?
No, the CPSC says not to operate a malfunctioning appliance until trained personnel have serviced it, and a quiet alarm is not a test result. Ask for flue gas and venting tests before any restart.
Can a Furnace Cause Carbon Monoxide?
Yes, EPA lists leaking furnaces, back-drafting, and blocked or disconnected flues among carbon monoxide sources. The CPSC adds defective or blocked venting systems. Have the HVAC company test the flue and inspect each vent joint.
Why Does a Carbon Monoxide Detector Go Off Near the Furnace?
No source this site lists names a single cause, and the CPSC says not to search for the source yourself. It also advises against alarm spots near heating vents. The furnace gets tested after responders clear the home.
Where Do Carbon Monoxide Alarms Go in a House?
The CPSC says on every level of the home and outside sleeping areas, with battery power or battery backup. It advises against spots near heating vents. Ask the company to point out the supply vents when it tests the furnace.
What Does Furnace Testing After a Carbon Monoxide Alarm Cost?
No public source publishes a Collierville price for this testing. The bill depends on the fault found, any vent or liner work, and the count of fuel-burning appliances tested. Ask what the visit covers before it begins.
Other Services to Consider
- Furnace Maintenance
The manual's yearly inspection and the CPSC's flue check, plus the monthly filter task that stays with you.
- Furnace Replacement
Manual J sizing, the efficiency choice, venting changes, and the Town permit shape a replacement done to code.
- Furnace Ignitor and Pilot Problems
The ignition order from switch to flame, the parts a local HVAC company tests, and what moves the price.
This page relies on 23 public documents, such as records from CPSC, US EPA, and Carrier. Find each one and its check date in the records behind each page list.
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