error message carrier outdoor iunit communication fault

ERROR MESSAGE CARRIER OUTDOOR IUNIT COMMUNICATION FAULT PROFESSIONAL

Your system has a defrost mode, but it may not be enough to take care of a severe freeze-over. Water on outdoor unit – During the winter, water from melting snow or ice can leak onto the coil and then freeze. Testing and charging the system is a job for a qualified HVAC technician. During the summer, it’s probably the reason your indoor coil has frozen, and in either case, the heat pump has to work extra hard to keep you comfortable. Low refrigerant charge – If your system is low on refrigerant, it can’t produce enough heat to melt ice buildup during winter. Regardless of the season, a frozen coil can be the source of your heat pump problems and can happen for a number of reasons. A frozen coil during the summer months is also suspicious. Ice on the coil impedes airflow and greatly reduces its effectiveness. During winter, it’s normal for a little frost to develop on the outdoor coil, but a coating of ice indicates an issue. Outdoor Unit is FrozenĪnother possible issue is having your outdoor unit frozen over. Remember, fixing a smaller issue now is better than waiting for a bigger issue – and bigger bill – later. If you still have issues, and have followed the remaining troubleshooting tips, it’s time to contact a professional. If the unit is blocked or obstructed in any way, remove the source of the blockage, then resume monitoring the temperature inside. If your system is not heating effectively or if it is running constantly, check the outdoor unit for excessive debris such as leaves or snow blockages. Your heat pump system needs unrestricted air flow through the outdoor coil to work efficiently and effectively.

ERROR MESSAGE CARRIER OUTDOOR IUNIT COMMUNICATION FAULT PROFESSIONAL

More serious issues – However, if it is mildly cold outside, the unit has been serviced recently and it is running constantly, you may have a deeper issue such as:įor each of these situations, it is generally best to contact a professional for diagnosis and heat pump repair. For more information about the benefits of routine system maintenance, take a look at our heat pump service page. This is something you can easily do yourself as well. A dirty or clogged air filter can cause the system to run longer and less effectively. If the coil is extremely dirty, your system may have trouble keeping up with heating demand.Ĭlean/replace air filter – Another service your HVAC tech may perform is checking the air filter located in or near your indoor air handler unit. One service typically offered during routine maintenance is cleaning your outdoor coil. Having your heat pump serviced regularly by a professional, qualified HVAC technician can provide higher efficiency operation and more reliable comfort. System tune-up – If it’s not a thermostat setting, your heat pump may need a tune-up. Is the heat pump set on air conditioning mode? If so, changing to the heat setting should fix the problem. But if the temperature outside is moderately warm, and the unit is still struggling or constantly running, it’s time to do a little heat pump troubleshooting.Ĭheck your thermostat – Begin by checking the thermostat settings. Heat Pump Running Constantly in Moderate Weatherīecause your heat pump relies on heating energy from outdoor air, it can be completely normal for a unit to run all the time in extreme temperatures as it tries to extract enough heat for your home. For additional suggestions, check out our heat pump not heating page. If checking the thermostat doesn’t solve the problem, and your system still isn’t heating and cooling correctly, you’ll need to start looking more closely at the indoor and outdoor units as outlined below. Re-setting the system to heat mode and the fan to auto mode should solve these issues. If you like to run your fan continuously for air circulation and filtering, you may be feeling room temperature or cool air because the system isn’t actively heating. If your heat pump system is blowing cold or room temperature air while the thermostat is set for heat mode, there are a few common situations you can resolve without even looking at heat pump itself.Ĭheck your thermostat - Double check that the system didn’t accidentally get set for cooling. Fan on the indoor air handler not activating.Heat pump running constantly in moderate weather.Some of the common issues covered in this heat pump troubleshooting guide include: Your heat pump operates just like a central air conditioner with the added benefit of providing heat for your home during the winter season. Diagnose & Troubleshoot Basic Heat Pump Problems

Error message carrier outdoor iunit communication fault