Lennox Furnace Error Code 270 Solved in the Niagara Region

Feeling frigid because you’re getting error code 270 from your Lennox® furnace?

This shows you that your furnace ignitor can’t activate the flame. After five failed attempts, the furnace will stop trying to ignite. It will then go into Watchguard mode for about an hour for safety reasons.

When your ignitor stops working, it’s safer to rely on our NATE-certified technicians. They’ve gone through rigorous education, so you can rest easy knowing they’ll find out what’s generating the furnace error and will repair it to your contentment.

We trust in the quality of our furnace repair in the Niagara Region so much, we back it with a 100% Satisfaction Guarantee* for a year.

How a Furnace Ignitor Works

This part ignites natural gas, which helps heat your house.

Here’s how a furnace ignitor works:

  • Thermostat begins call for heat.
  • Furnace ignitor and blower become energized.
  • Ignitor becomes as hot as 2,500 degrees Fahrenheit and ignites burner gas.

A furnace ignitor should last about three to five years before it fractures and has to be replaced. It can wear out sooner if you don’t replace your air filter regularly, since a dusty one can cause your HVAC equipment to short cycle.

What Happens When a Furnace Ignitor Breaks Down

Your furnace will tell you there’s something wrong with a red flash from its indicator light, which it uses to display error codes. It has this red light to flash code, much like Morse code.

You might see short flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The price to mend your furnace hinges on what’s wrong with it and how long it takes to repair it.

Before your technician replaces your ignitor, he or she will look at:

  • Gas flow
  • Flame sensor current
  • Air filter

Your HVAC specialist will also make sure the ignitor is truly lighting the burner and that there are no obstructions or cracked hoses within your system.

An ignitor often fails when you need it most, bringing about an after-hours service call.

Here’s the typical costs to replace it:

  • $200 during normal service hours
  • $300 to $400 after hours

Rely on the Experts at Service Experts Heating & Air Conditioning

When you need Expert furnace repair, you can rely on our highly knowledgable technicians at Service Experts Heating & Air Conditioning. We’ll fix your furnace and quickly get your heat working again.

Call us at 289-273-2229 or schedule an appointment online today.


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At Service Experts, our top priority is always the health and safety of our customers and team. We are following all COVID-19 (Coronavirus) public safety guidelines and adjusting our business practices as needed to ensure customer and employee wellbeing. As a precautionary measure, anyone working on behalf of Service Experts – including our technicians – is being asked to stay home for the recommended 14 day quarantine period if they are returning from out-of-country, have been exposed to a presumptive or confirmed case, or are feeling unwell. We are providing our technicians and other field employees with additional health and safety guidance to assist in keeping our customers and employees safe. Please be prepared to answer brief health and safety questions with our representative. We will continue to monitor the situation and will adjust our business practices as required. We recognize that this may be a particularly stressful time and want you to know that, we are committed to serving you and making your experience as easy as possible.