{"id":657,"date":"2020-11-23T11:00:11","date_gmt":"2020-11-23T16:00:11","guid":{"rendered":"https:\/\/www.dehartinc.com\/blog\/?p=657"},"modified":"2025-11-18T10:57:27","modified_gmt":"2025-11-18T18:57:27","slug":"help-my-furnace-is-blowing-out-cold-air","status":"publish","type":"post","link":"https:\/\/www.dehartinc.com\/blog\/heating-service\/help-my-furnace-is-blowing-out-cold-air\/","title":{"rendered":"“Help! My Furnace Is Blowing Out Cold Air”"},"content":{"rendered":"
\n
\"\"\/<\/figure>\n<\/div>\n\n\n

This is obviously a very\n<\/em>concerning problem\u2014getting cold air from your vents when you turn on your\nfurnace. After all, that\u2019s the absolute last thing you need when you turn on\nyour furnace, whether it\u2019s the first time this season or you\u2019ve already been\nutilizing it on a regular basis. If your furnace has indeed started blowing\ncold air, the best thing you can do is give our pros a call! <\/p>\n\n\n\n

We cannot definitively tell you in a blog post what\u2019s wrong with your specific system, but we can speculate. There are a number of reasons that it may experience this issue. Please don\u2019t try to fix it on your own, as you can do more harm than good, without ever resolving the actual issue. Read on as we uncover what might be going on with your heater while you wait for a pro to come for repairs. <\/p>\n\n\n\n\n\n\n\n

First, Check the Thermostat! <\/h2>\n\n\n\n

Sometimes the problem with your furnace isn\u2019t actually <\/em>a problem with the heating system\nitself. Rather, the problem is with the thermostat. If you have a\nmalfunctioning thermostat, it may be misreading indoor temperatures, or it\nmight not be accurately regulating the temperature of the furnace. <\/p>\n\n\n\n

The first thing you\u2019ll want to do is take a look at the\nthermostat to make sure it\u2019s not set to \u201con\u201d rather than \u201cauto.\u201d When it\u2019s set\nto \u201con,\u201d the fan is going to keep blowing, even if the furnace isn\u2019t actually\nheating the air. The air you will notice coming from the vents will actually be\nroom temperature, which can of course feel pretty cold depending on the temps\noutside! <\/p>\n\n\n\n

Next, Check Your Air Filter<\/h2>\n\n\n\n

What if the air coming through your vents isn\u2019t actually cold, <\/em>but doesn\u2019t feel as comforting because it\u2019s not coming through as powerfully? This is the result of low airflow and a clogged air filter can be to blame. A dirty or clogged air filter restricts the airflow coming into the furnace, causing the system itself to potentially overheat. <\/p>\n\n\n\n

When this occurs, the system will shut down as a safety\nmeasure. The fan, however, may still continue to blow air. Like the problem we\nmentioned above, that air may be room temperature. Be sure to check your air\nfilter! Homeowners should change or clean their HVAC air filters every 1-3\nmonths. <\/p>\n\n\n\n

You May Have Broken Heating Elements<\/h2>\n\n\n\n

This is one of those repair needs you can\u2019t, or at least shouldn\u2019t, check for on your own. And this one applies if you have an electric-powered furnace. When any of the electrical elements that are responsible for actually heating up the air leak, you will get cooler air from the furnace. <\/p>\n\n\n\n

Our professionals will inspect each element of your system and pinpoint the exact cause of the problem so we can repair it accordingly. You want broken heating elements repaired as fast as possible since this can lead to a number of other problems. <\/p>\n\n\n\n

Your Ductwork Might Be Damaged<\/h2>\n\n\n\n

Again, sometimes the problem with your furnace isn\u2019t\nactually with your furnace. In some cases, it may be due to a ductwork breach.\nWhen this happens, warm air can leak from the ventilation system. Depending on\nwhere the breach is, this will prevent heated air from reaching a room or two,\nand you may feel cold spots or uneven heating throughout your home. <\/p>\n\n\n\n

For professional Modesto furnace services<\/a>, contact<\/strong> DeHart Plumbing, Heating, and Air Inc.<\/a> today!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

There are a number of problems that can afflict a furnace that’s not well cared for or is aging. Cold air is definitely an alarming one! <\/p>\n","protected":false},"author":1,"featured_media":1826,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[123,136,88],"class_list":["post-657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heating-service","tag-furnace-repair","tag-heating-services","tag-modesto"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/posts\/657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/comments?post=657"}],"version-history":[{"count":5,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/posts\/657\/revisions"}],"predecessor-version":[{"id":1967,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/posts\/657\/revisions\/1967"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/media\/1826"}],"wp:attachment":[{"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/media?parent=657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/categories?post=657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dehartinc.com\/blog\/wp-json\/wp\/v2\/tags?post=657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}