5 Reasons Why Your Air Conditioner Stopped Working. (You should have a wire in “Y2” if you have more than one stage.) If it is set to OFF or Auto already, the heat pump’s limit switch needs to be adjusted. These elements automatically turn on at a fairly low temperature—around 20 degrees F. When they come on, they may be drawing too much power, which can trip the circuit breaker. The valve controls which direction the refrigerant moves after leaving the compressor. I am on a service call for a heat pump that doesn't cool or heat. Use HomeAdvisor’s free service to find a qualified local heating & AC professional.Call for free estimates from local pros now:1-866-342-3263amzn_assoc_placement = "adunit0"; amzn_assoc_enable_interest_ads = "true"; amzn_assoc_tracking_id = "widget05-20"; amzn_assoc_ad_mode = "auto"; amzn_assoc_ad_type = "smart"; amzn_assoc_marketplace = "amazon"; amzn_assoc_region = "US"; amzn_assoc_emphasize_categories = "2619525011,1055398,2972638011,228013"; amzn_assoc_linkid = "fed726c60c88d738e7784c819bb73fbc"; amzn_assoc_fallback_mode = {"type":"search","value":"heat pump part"}; amzn_assoc_default_category = "All"; Don Vandervort writes or edits every article at HomeTips. If there doesn’t seem to be a problem with air flow to the unit, see more information at Heat Pump Cold Weather Problems or call an HVAC service professional. Weird & Wacky, Copyright © 2021 HowStuffWorks, a division of InfoSpace Holdings, LLC, a System1 Company. Check the thermostat if your heat pump is cycling poorly. A Guide to Wooden Furniture Restoration Tools, Information about the device's operating system, Information about other identifiers assigned to the device, The IP address from which the device accesses a client's website or mobile application, Information about the user's activity on that device, including web pages and mobile apps visited or used, Information about the geographic location of the device when it accesses a website or mobile application. Following is step-by-step advice for troubleshooting typical heat pump problems and DIY heat pump repairs. The All-Climate heat pump is designed primarily for heating, though, and won't work efficiently in climates where the heat pump would be in cooling mode most of the time. But if you’re used to a certain temperature of air and your heat pump is producing much cooler air, take the following steps.eval(ez_write_tag([[336,280],'hometips_com-large-mobile-banner-1','ezslot_3',633,'0','0'])); Please note: A heat pump may go into a defrost mode to prevent icing up. It does not burn fuel to produce heat nor does the electricity it consumes go through an element. Call an electrical contractor (go to HomeAdvisor). 3 If the belt seems too tight or difficult to put on using this method, it may be necessary to adjust the motor mount to provide more slack. If it is dirty, change it as described in the article How to Replace a Heat Pump Filter. Here are some of the more common reasons your heat pump may not be cooling as needed: You haven’t had bi-annual maintenance – because heat pumps provide both heating and cooling, they work twice as hard as separate cooling and heating systems do. If the power to the heat pump goes out, be aware that most heat pumps have auxiliary heating elements that provide heat when the weather gets really cold and the heat pump’s efficiency drops too low. Heat pump problems are often caused by thermostat malfunctions. The two circuit breakers that protect the electrical circuits providing power to the air handler and heat pump condenser may have tripped. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. 6 If these simple steps don’t work, have a heat pump repair technician check out your system. Chances are, you will run into a problem with your heat pump at some point. Thermostat settings - Start by checking to make sure the thermostat is set properly. The reversing valve is responsible for switching the heat pump between heating and cooling modes. In cold weather, the heat pump extracts heat from the cold air outside and releases it inside the house. Check your insulation. Try cleaning or replacing the filter. Your heat pump pulls the heat from the air outside into your home. For example, the reversing valve may be stuck in the wrong position. Don founded HomeTips in 1996. If your heat pump isn’t blowing enough air, try changing the air filter and see if that makes a difference. 3 If the heat pump is connected to a power switch, either on the wall near the unit or inside the air handler cabinet, be sure it is turned on (many don’t have switches). Shut off the unit and call a heat pump repair technician—the motor’s bearings are probably shot. eval(ez_write_tag([[300,250],'hometips_com-leader-1','ezslot_5',158,'0','0']));HomeTips Pro Tip: Opening up the cabinet of a heat pump and working with electrical parts can be dangerous for the inexperienced. Step 3: Inspect your heat pump filter to see if there is any build-up that has accumulated. The heat pump is already doing that. If the thermostat was replaced recently, the new thermostat may be the wrong type—it must be specifically a heat pump thermostat. Call a heat pump repair technician to make the adjustment or, if you are handy with this type of repair, follow the instructions in your owner’s manual to reset the pointers on the fan side of the limit control. Replacing it is an easy fix, as discussed below: HomeTips Pro Tip: Opening up the cabinet of a heat pump and working with electrical parts can be dangerous for the inexperienced. Squealing sounds and grinding noises are not good. Remove the door on the front of the air-handler cabinet to give you access to the blower (it may be on a slide-out drawer.) This valve is the component responsible for changing the direction refrigerant moves through the heat pump, and that determines if the heat pump is in heating or cooling mode. Unsubscribe anytime! There are a number of malfunctions that can lead to a heat pump refusing to change to cooling mode, and one of the most common is a broken reversing valve. HomeTips articles may contain links to Amazon.com and other partner programs that provide helpful products and services. If your home is heated by a furnace instead of a heat pump, please see Furnace Troubleshooting & Repairs. As heat pumps still use electricity, use it only when needed for cooling and try other ways to keep your home cool (like closing windows and curtains during the hottest parts of the day, or planting leafy trees in front of windows). HomeTips.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. 2 Slip the belt on the motor’s (smaller) pulley first and then start it on the blower pulley, as shown below. 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