Heat Pump Install draining water on foundation - Ask Extension
The heat pump installed in November drains constantly from the unit on the wall. Can you help me find a reference that helps me demonstrate the proble...
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Heat Pump Install draining water on foundation #867681
Asked May 09, 2024, 8:25 AM EDT
The heat pump installed in November drains constantly from the unit on the wall. Can you help me find a reference that helps me demonstrate the problems this will cause to the installer, help me help him identify a solution (possibly a catch and drain that also prevents deterioration of the wood), and a possible natural landscaping solution I could explore and employ? He says the amount of water daily is that of an average rainfall. That sounds like perfect conditions for termites and freezing walkway. Thanks!
Baltimore County Maryland
Expert Response
A heat pump that constantly drains water can be concerning, but there are several common causes and solutions to address this issue:
- Condensate Drain Line Blockages: Accumulated dirt, debris, algae, or mold can clog the heat pump’s condensate drain line, leading to water leaks. Regular maintenance, including cleaning the drain line, helps prevent blockages (Moor, 2024).
- Frozen Evaporator Coil: Restricted airflow due to a refrigerant leak or a clogged air filter can cause the evaporator coil to freeze. When the ice melts, it results in a heat pump leak. Regularly changing the air filter and monitoring for refrigerant leaks can prevent this issue.
- Cracked or Damaged Drain Pan: The drain pan collects water generated during the condensation process. Over time, wear and tear can lead to damage or cracks in the drain pan, potentially causing leaks. Inspecting the drain pan and replacing it if necessary is essential.
- Improper Installation: Substandard installation, such as improper system leveling and poorly connected pipes, can cause water leaks. Proper installation by a qualified contractor is crucial to avoid leaks and ensure system efficiency.
- Malfunctioning Defrost System: A malfunction in the heat pump’s defrost system can lead to excess ice buildup and subsequent water leakage. Regular inspections and maintenance are necessary to keep the defrost system working correctly.
- Refrigerant Leaks: Refrigerant leaks can also cause issues. If you observe a refrigerant leak, contact a reputable HVAC technician promptly. Handling HVAC refrigerants requires professional expertise (Moor, 2024).
As for preventing wood deterioration and landscaping solutions:
- Catch and Drain Solution: You can install a catchment system to collect the water and redirect it away from the wall. This could involve attaching an extension pipe or hose to the drain and directing it downhill or into a flower bed (Lipford, 2024).
- Natural Landscaping: Consider creating a rain garden or planting moisture-loving plants near the heat pump’s drainage area. These plants can absorb excess water and prevent erosion or wood damage (Lipford, 2024).
Regular maintenance and professional inspections are essential to keep your heat pump functioning optimally and prevent water-related issues. If you’re unsure, consult an HVAC technician to assess your specific situation.
Thank you so much!
While the air conditioning drain presents one challenge, I've had them extend that drain line away from the foundation.
However, the unit produces water all winter with no drain line, just puddles at the rate of a day worth of rain daily. If there are solutions for this, in all ears.
I may reach directly to the expert whose website you shared. Brilliant share!!