Is the Pilot Light lit? Get up-to-date current news, promotions and industry tips. If it gets too cold outside, your heat pump’s outdoor unit may freeze, causing your system to go into defrost mode. If gas supply is interrupted for any reason, the gas furnace pilot light will go out. If your heat pump is blowing some cold air, there are a few things that may be going wrong. May be something as simple as a switch or breaker is turned off. By using our Services or clicking I agree, you agree to our use of cookies. Your body’s average temperature is around 98 degrees, whereas the air that heat pumps produce is typically cooler than that. Your heat pump may be working fine, but the air just feels cool to lukewarm. Invest a few dollars in new high-quality air filters before you try anything else. If your thermostat looks like this, make sure you change it to HEAT. It will also need to be replaced by a technician. To solve the problem, try these 2 things: Turn off the heat at the thermostat and check your air filter. Don’t worry, it happens more often than you think. Thermostat said cool but was wired to heat. Like say it out loud to yourself while you’re doing it. Press J to jump to the feed. Came home to a house at 108 degrees after a weekend visiting friends. This problem only started recently when it started going from fall to winter. Alt heat means the heat pump is turned off and the other source (usually gas furnace) is asked to heat. If it looks like the one pictured above, it’s time to enlist a professional to come and clean it. Not sure the - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Clean the pilot ignitor To fix this, you’ll need to contact a technician and have them take a look at your system. Blowing hot air means you probably wired it according to the conventional row on your old thermostat instead of the heat pump row. Broken reversing valve: As the name suggests, the reversing valve allows the heat pump to work as both a heater and an air conditioner by reversing the direction of the refrigerant. That includes electrical problems such as bad compressor contactor. Check out our other blog posts for money-saving tips and helpful how-tos about heating and cooling. This setting should be set to AUTO, not ON. Heat pumps have one drawback: They lose efficiency as the temperature drops. It seems pretty warm, but 80 degrees is much cooler than the average body temperature (98.6 degrees Fahrenheit) and could feel like cold air blowing into the home. This kicks on if your heat pump can’t handle things in its usual way. Don't panic if you see frost on your outside equipment's coil. Refrigerant is the substance that absorbs heat from the air outside and draws that heat into your home. The reversing valve not shifting properly. Emergency Heat is typically triggered when it is 35°F and below outside. It's all part of the process of heating your home with a heat pump! … The furnace has a difficult time generating heat if there isn’t enough airflow into the unit. When set to “ON” the fan will stay on even when your heat pump isn’t actually heating. If there is an issue with your reversing valve, your heat pump may actually be in cooling mode, in which case the air coming from your vents will be cold, not warm. Generally speaking, a heat pump will produce air that is about 55 degrees warmer than the outside air. If the heat pump turns on when you want cool air, but not for heat, this is likely the cause. And the other source ( usually gas furnace pilot light will go out pump isn ’ had! 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