Did you check your air filter? Make sure it’s not dirty. What about the thermostat setting? Is it set to on? Is it set to the heat setting? Have you checked the battery in the thermostat? Does it need to be replaced? Another thing to look at is the circuit breaker. Has it been tripped?

Step 1. Check the thermostat to make sure that you have it turned onto the heat setting and it’s actually on.
Step 2. Do the same for the furnace switch. Is it set to on?
Step 3. Check the circuit breakers. Did your furnace switch trip?
Step 4. Check the furnace filter next. You want to make sure this isn’t clogged. If it is dirty, you’ll want to replace it with a new filter.
Step 5. Check the furnace front panel. Did it come undone? Close it tightly.
Step 6. Is your gas valve at the “on” position?
Step 7. Be sure that your air ducts aren’t blocked.
Step 8. Call a professional if you’re still having issues. 

This is a tricky question. There are different answers, and it can vary as much as $100 to $1200 dollars. The average cost tends to be right around $300. In most scenarios, it tends to run between $170 to $500, dependent on the type of furnace you have, if there’s a warranty, along with the parts and labor needed.

AC systems are a staple in the summer. We’re comfortable when they work right, but if they aren’t running properly, you’re not only losing peak performance, but the unit may not run properly. The fastest way to keep things running smoothly is to tune up or service your AC system in the spring. This means your system will run efficiently, rather than losing efficiency. Did you know an un-serviced AC system can lose 5% of its efficiency? That goes for your heating system too, so be sure to schedule an appointment in the fall to get that taken care of. Oh, and one more tip, be sure to clean or change out your air filters monthly.

When talking about how long a unit lasts, you’ll want to account for how it was installed, and how well it was maintained. On average you’ll get about 12-15 years out of a good air conditioning system, and about 14 years out of a heat pump. When it comes to older units, consider replacing, rather than repairing units that are already over 10 years old.

Installing central AC is a big investment. It’s natural to wonder what it will cost. HomeAdvisor says it generally runs between $3700 to $7000. One thing to keep in mind is that the price tag varies based on your system needs, where you live in the country, along with the condition of your existing air ducts.