At a glance
- Urgency
- Book soon: it will not fix itself
- Most common first sign
- Clicking or glowing but no flame
- Who does the work
- An independent heating provider who serves Marlborough
- Areas covered
- 6 areas, 6 ZIP codes
What furnace ignition & flame sensor repair involves
Most modern gas furnaces use a hot-surface igniter that glows to light the gas. Igniters are fragile and wear out.
Once the burners light, a flame sensor confirms the flame. A thin coating on the sensor rod can make the furnace shut the gas off after a few seconds.
The technician tests the igniter, cleans or replaces the flame sensor and checks the ground and gas pressure.
Signs you need ignition repair
- Clicking or glowing but no flame
- Burners light then go out
- Furnace tries several times then locks out
How the work is done, step by step
- 1
Observe ignition
Watch the sequence and read codes.
- 2
Test igniter
Resistance and voltage checked.
- 3
Clean or replace sensor
Flame sensor serviced and microamps measured.
- 4
Verify
Multiple cycles run.
What affects the cost
- Igniter type
- Sensor clean versus replace
- Gas valve issues found
Every job is quoted by the provider after an assessment. No price on this page is a quote.
What you can do yourself, and when to stop
Generally safe to do
- Note how many tries before lockout
- Replace the filter
Stop and call a pro
- Opening the burner compartment
- Handling igniters (they break easily)
Ignition repair in Marlborough: local context
Marlborough sits where Route 20 meets I-495, with a historic downtown, older neighborhoods of capes and colonials, and newer subdivisions and condo complexes built as the city grew along the highway.
Forced-air furnaces are common in the city's mid-century and newer homes, fueled by natural gas or oil, and many homes add central air through the same ductwork. Older homes may still have boilers, and more owners are adding cold-climate heat pumps.
Have this ready when you call
- Your street address and ZIP code in Marlborough
- What you are seeing, hearing or smelling, and when it started
- Which of these signs apply: clicking or glowing but no flame; burners light then go out
- Anything you have already shut off, reset or tried
- Photos of the problem area, taken before anything is moved or removed
- Whether anyone in the home is at risk, and the best times for a visit
A clear description helps the heating provider bring the right parts and equipment on the first visit.
Call (555) 010-0000Where ignition repair calls are covered
Every ZIP code below is on the call-routing partner's coverage list for heating calls, centered on Marlborough.
| Area | Type | ZIP codes | Local guide |
|---|---|---|---|
| Marlborough | Primary city | 01752 | Furnace Ignition Repair in Marlborough |
| Hudson | area | 01749 | Furnace Repair in Hudson |
| Southborough | area | 01772 | Furnace Repair in Southborough |
| Northborough | area | 01532 | Furnace Repair in Northborough |
| Framingham | area | 01701 | Furnace Repair in Framingham |
| Berlin | area | 01503 | Furnace Repair in Berlin |
Why call through MarlboroughFurnaceRepair
What we do
Explain heating problems plainly and route your call to a technician who serves your ZIP code.
What we do not do
We do not service, install or bill for heating work.
Check the license
In Massachusetts, gas work requires a licensed gas fitter or plumber and oil burner work requires a certified oil burner technician.
Your choice
You are never obligated to hire the technician you speak with.
Often needed alongside ignition repair
Furnace Ignition & Flame Sensor Repair: common questions
Why does a flame sensor get dirty?
Combustion leaves a thin film on the rod over time. Annual service usually prevents the problem.