What are some possible causes of delayed ignition?
What causes delayed ignition on a gas furnace?
- Moisture buildup. Over a period of furnace inactivity, moisture tends to build up inside your system, corroding its firebox over time.
- Dust and lint.
- Sulfur buildup.
- Electronic ignition problems.
- It may cause damage to your furnace.
- It may become a safety hazard.
Why does it take so long for my furnace to kick on?
If you notice your furnace taking a long time to kick on, this could be due to a few reasons. Most commonly, an aging furnace is to blame, which might take a few tries to ignite and produce a flame. Another common cause for a slow-starting furnace is a dirty or bad flame sensor, so the list goes on.
How do you fix a delayed ignition on a gas boiler?
Solving the Problem All you need to do is have your furnace cleaned properly before turning it on each fall. A New Britain heating technician will clean the burners and ports and remove any dust, lint, rust or sulfur buildup that might block ignition and cause a delay.
Why does my furnace not ignite sometimes?
Check Your Air Filters Often times the reason air does not get to your furnace’s igniter is because it is restricted. The main reason for this air restriction is usually traced back to dirty air filters. So check them if your gas furnace fails to ignite when you turn the system on.
Do furnaces ever explode?
Although it is possible for a gas furnace to either catch fire or explode, it’s highly unlikely. If there is a danger of this happening, the furnace will usually simply shut off—as it’s designed to. If you’ve got a good furnace and take care of it, you won’t have to worry about explosions or fires.
What causes delayed ignition on a gas boiler?
Delayed ignition can be caused by a range of problems, including a restricted or weak pilot light. Also, low gas supply pressure can mean that there is too little gas at the burners, resulting in ignition problems. Another possible cause is too much primary air. This is air that’s mixed with gas before it’s ignited.
How long should it take for your furnace to kick on?
Your furnace should start up within five minutes of you turning on your thermostat. Period.
How long should it take for a furnace blower to turn on?
In normal operation, your furnace blower fan should come on 1.5 to 3 minutes after your thermostat calls for heat and should turn off several minutes after the heating cycle ends.
What causes delayed ignition in a gas fireplace?
But if you want to learn the lingo, delayed ignition can be caused by: Too much primary air— Primary air is the air mixed with the gas before it’s ignited. Too little gas at the burners—Like too much air, not enough gas makes it hard for the gas-air mixture to ignite. This is can be caused by low gas supply pressure.
How do you know if your furnace is going to explode?
These include high pitched, grinding, rumbling, popping, squealing, or banging noises. This could be the result on small issues like loose components within the system or more serious issues. Either way, you should call a professional to look into the issue.