what do you do when your heater wont turn off

Full Answer

Why is my heater not turning off?

What Causes a Gas Water Heater to Turn Off All the Time?

• Insufficient Gas Supply. Like your gas stove, a gas water heater relies on an adequate gas supply to maintain the burner’s operation.
• Bad or Dirty Thermocouple. If your gas valve is open and there are no leaks, it would be wise to check the thermocouple. ...
• Dirty Pilot Light or Tube. ...
• Clogged or Dirty Air Inlet. ...

How to fix heater problems?

How to Fix Heater Problems: 5 Common Furnace Issues

• Furnace is Blowing Cold Air. One of the most common problems with heaters is that they blow cold air instead of warm air. ...
• Certain Rooms are Not Getting Any Warm Air. ...
• Furnace Won’t Turn Off. ...
• Short Cycling of the Furnace. ...
• There is a Strange Noise or Smell Coming From the Furnace. ...

Why won ' t my heater turn on?

• Start by checking other electrical components. ...
• Check the circuit breaker to ensure that the appropriate switches are in the “on” position. ...
• Check for a circuit breaker on the appliance, or a light switch located nearby. ...
• If any of these circuit breakers are popped, reset them only once.
• If the reset doesn’t work, call the local HVAC technician.

Why is my heating system not working?

• A boiler ​ (or water heater) heats the water for circulation through the tubing. ...
• The circulating pump ​ moves water from the water heater through the tubing and back to the water heater. ...
• The manifold ​ is a brass and copper array that divides the main hot water line coming from the water heater into individual loops (zones) to heat various rooms. ...

Why is my heater running non stop?

A faulty thermostat can cause your heating unit to run and not turn off. The unit may have a broken heating sensor, the wiring may have gone bad, or the switch itself may have broken. The older the thermostat is, the more at risk you are for this happening. Fortunately, a broken thermostat is an extremely easy fix.

What would cause a furnace to not shut off?

If your furnace won't shut off, you likely have one of the following issues: Thermostat issue. Dirty air filter. Faulty blower.

Why does my heater keep running?

Inspect Your Air Filter A clogged, dirty air filter can cause your heating system to work overtime. It's not able to send enough heat into your home, so it just keeps running. The air filter should be cleaned and replaced every two to three months.

Why is my furnace still running when turned off?

If you've followed the first two steps but your furnace still won't shut off – it's time to call Aspire. It could be a faulty blower motor switch, leaky ductwork, or a wiring problem on your thermostat. You'll want a qualified professional to take care of these problems.

How do I shut my furnace off?

1:262:24How To Turn Off A Furnace (Tutorial) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo to turn the furnace off all that you have to do is flick the switch. And if your furnace isMoreSo to turn the furnace off all that you have to do is flick the switch. And if your furnace is already on then if you flick the switch.

A Bad Thermostat

The first thing to check is your thermostat. Your heater may constantly be working because your temperature drops even though the thermostat is set for a higher temperature. It may also be stuck in the “on” position because of ice buildup around the power button.

Damaged Fan

Another component to check is the fan. If the fan isn’t turning on, it could mean that there’s a problem with either your thermostat or your limit switch. The fan provides a signal for when the heater needs to turn on and off, so if this doesn’t work, neither will your heater. This can be fixed by simply checking the wiring and the fan itself.

Bad Limit Switch

You may have a lousy limit switch if your heater is constantly turning on and off. This can be solved by either replacing or resetting the switch. If you turn the thermostat back down to a lower setting, it might mean that you need a new thermostat. You don’t always need to purchase a new one.

Damaged Primary Controller

The primary controller is like the brain of your heater. If it’s damaged, you won’t be able to control your heater using the thermostat or limit switches. There are three different primary controllers: a timer, an electromechanical one, and a digital one.

Damaged Fuses

Another thing that could cause your heater not to turn off when expected is any blown fuses. Once again, this is a common issue, and it’s easy to fix. If you have any fuses that are blown, replace them. Be sure to check the rest of the system, too, so you don’t get stuck with this problem again.

Relay Problems

Something else you can check if your heater won’t turn off is your relay. It’s often difficult to diagnose because it’s impossible if you don’t know how your relays are hooked up. If the relay fails, the gas won’t shut off when you expect it to, which can be fixed by replacing or resetting the relay switch.

Temperature Sensor

If your heater is constantly turning on and off because the temperature is too hot or too cold, even when you have set it at its lowest level, this could mean that your temperature sensor has failed. There are two different types of temperature sensors: one that uses a thermocouple and one that doesn’t.

Why won't my baseboard heater turn off?

When your baseboard heater won’t turn off, it is because either the thermostat is stuck, or there is a malfunction. Both of these problems can be solved by replacing the thermostat. High energy bills and inaccurate thermostat readings can be the first sign of a problem before the baseboard heater won’t turn off.

How much does it cost to replace a thermostat?

You can replace a thermostat for $25-$50, or you can hire out for the unit and labor for $100-$250. Be careful when replacing a thermostat to make sure that you keep track of the proper wires. Sometimes, however, the problem is as simple as the thermostat needing new batteries.

Is baseboard heater energy efficient?

Baseboard heaters are a great convenience, which is why many builder owners choose them for their homes. They are highly energy-efficient and give you control over the temperature of each room of your house. However, it can be quite unsettling when you go to turn off your baseboard heater and nothing happens.

Check Your Thermostat

If your furnace won’t shut off and you’re worried, don’t panic. The first thing to do is check the thermostat.

Check Your Air Filter

Clogged air filters are a major cause of furnace malfunctions. They help regulate the furnace’s air supply, and can seriously overwork your furnace if they’re clogged:

Call the Professionals

If you’ve followed the first two steps but your furnace still won’t shut off – it’s time to call Aspire. It could be a faulty blower motor switch, leaky ductwork, or a wiring problem on your thermostat. You’ll want a qualified professional to take care of these problems.

What to do if furnace won't shut off?

If you cannot diagnose the furnace problem yourself, the best thing you can do is to call a furnace repairman. The final problem that could cause a furnace that just won’t shut off deals with electrical sensors that aren’t properly registering heat or timing.

What to do if furnace is still running hot?

If your furnace is still running hot after doing this, you will be able to rule out some common culprits. Finally, you should check the wiring of your thermostat. If your wiring is frayed or otherwise damaged, you might have a faulty thermostat to blame for your furnace problems.

Why won't my furnace turn off?

A furnace that isn’t turning off is usually the result of a thermostat that’s set too high, a thermostat that’s gone bad, a bad blower motor switch, or filters that have to be replaced. Many of the fixes can be done on your own, but there are moments where calling a professional is the better option. If your furnace won’t turn off, things can ...

What to do if your furnace is set at a temperature that's warmer than the outside?

If your thermostat is set at a temperature that’s warmer than the outside, the furnace could just be doing what it’s supposed to do. Turn your thermostat’s fan to AUTO or OFF. This will help you make the most of your troubleshooting later on when it comes to your blower motor.

What is a bad blower switch?

A bad blower switch is one of the worst things that can happen to your HVAC system and you better hope that this is not the issue causing your problems. Your furnace blower motor is what blows the hot air to the various rooms in your home. The switch is what controls it, turning it off and on via signals.

How to make sure your furnace is working?

In most cases, the fastest way to make sure that your furnace and HVAC system starts working well once more is to clean or switch out your furnace filter. When your filter is dirty, it impedes airflow in your HVAC system, which in turn, can “trick” your furnace into staying on despite not being required.

What does short cycling mean on a furnace?

Short cycling occurs when the furnace turns off and on in extremely small bursts. While short cycling will not pose a risk to your health, this pattern of furnace use has a tendency of shortening your furnace’s lifespan. At times, it can also be a sign of serious wear and tear that’s about to become a major break.