Read through this blog to know Carrier heat pump problems and their troubleshooting tips without the need of an HVAC technician. Carrier heat pump just works as an air conditioner with the added benefit of providing heat for your home during winter. If your room is not getting heated properly, then check the issues with your heat pump. Know the reasons behind the Carrier heat pump not working and fix them simply with this guide.
Table of Contents
1. Carrier Heat Pump Troubleshooting for Common Problems
2. Carrier Heat Pump Blowing Cold Air in Heat Mode
3. Carrier Heat Pump Keeps Running in Moderate Weather
4. Outdoor Unit is Frozen
5. Heat Pump Not Cooling
6. Conclusion
Carrier Heat Pump Troubleshooting for Common Problems
Some of the problems that your heat pump might get are:
- Heat pump blowing cold air in heat mode
- Carrier heat pump outdoor unit is frozen
- The outdoor unit is blocked
- Unit running constantly in moderate weather
- Fan on the indoor air handler is not activating
Now, we will look at a few solutions to fix the above Carrier heat pump issues.
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Carrier Heat Pump Blowing Cold Air in Heat Mode
If your heat pump is not heating, there are some common areas you need to check for resolving the issue.
Incorrect thermostat settings:
If your Carrier heat pump is running but the room is not heating, you have to check the thermostat. See if the thermostat is set to heat mode. When the thermostat is at constant fan or cool mode, your heat pump blows cold air. So, you need to keep the correct settings.
If the fan in the heat pump runs continuously for air circulation and filtering, then you can feel the cool or room temperature air. Try to reset the unit to heat mode and fan into auto mode to solve this issue.
Faulty or un-calibrated thermostat:
Sometimes the temperature setting in the thermostat is off by a few degrees, so it can’t calibrate properly. This situation may occur due to many reasons such as accidentally bumping or dirt buildup. You should follow the thermostat instructions in the manual to recalibrate it.
Tripped circuit breaker
When your heat pump is not working at all, you must check the electrical panel. Make sure, the outdoor unit needs to be on it's own high voltage breaker. Also, examine the indoor unit as it is on a separate breaker. If either of these breakers is tripped, reset it by following the standard instructions given in the manual. If the circuit breaker tripping continuously, call a professional.
Dirty air filter:
If the air filter is more dirty or clogged, it can lead to reduced airflow. Moreover, in some critical situations, the airflow becomes completely blocked or the heat pump may shut down. So, check the air filter which is located in or near the indoor unit. You have to clean or replace the air filter based on the requirement.
In addition to the above, you need to check more things including leaking duct, frozen outdoor unit, low refrigerant charge, damaged reversing valve, power disconnect to the indoor or outdoor unit, etc.
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Carrier Heat Pump Keeps Running in Moderate Weather
Normally, the heat pump works by using heat energy from the outdoor air. And, it can be normal for a heat pump to run all the time in extreme temperature conditions as it tries to extract enough heat for your building. So, when the outside temperature is moderate, your unit may struggle or run constantly. In this situation, you have to check the below components.
Thermostat: You need to start checking with the thermostat settings. Here, you will have to verify that it has been set to air conditioning mode. If it is, change the setting to heat mode to fix the issue.
Heat pump tune-up: If your unit doesn't have a thermostat, it may need a tune-up. It's good to take the service from a qualified professional or HVAC technician as they provide more reliable comfort and higher efficiency operation. In one service during routine maintenance, they will clean the outdoor coil. If the outdoor coil is extremely dirty, your unit may face trouble while keeping the heat on demand.
Air filter: Check whether the air filter is dirty or clogged. If so, you need to clean or replace the air filter in your heat pump.
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Outdoor Unit is Frozen
Another possible problem is that your system becomes frozen during winter. A little frost on the unit is normal, but ice coating on it indicates an issue and also impedes airflow and reduces it's effectiveness. However, a frozen coil will create many heat pump problems so you have to fix it as quickly as possible.
Low refrigerant charge: If your Carrier heat pump is on low refrigerant, it can't produce enough heat for melting ice buildup in winter. So, test and recharge the system to work hard to keep you comfortable.
Defective fan motor: In your heat pump's outdoor unit, the fan draws air through the coil and assists in the heat transfer process vital to cool and heat your home. Hence, with the help of a technician, you need to repair the defective fan motor.
Heat Pump Not Cooling
Your heat pump works like an air conditioner to produce cool air during summer. If your Carrier's heat pump not producing cooling, you need to go through the issues with thermostat settings, outdoor unit issues, indoor unit issues and dirty or clogged filter.
Conclusion
For further assistance on Carrier heat pump troubleshooting, you can refer to the unit manual. Otherwise, contact an HVAC technician to repair the issues of Carrier heat pump.
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