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Photograph of client using tissue to look for air conditioning air flowRepair A/C or Heat Pump Refrigerant Problems
Basic approach to fixing an A/C or Heat Pump refrigerant problems: leaks, wrong charge, overcharging, undercharged

  • REFRIGERANT PROBLEM TYPES - CONTENTS: Basic HVACR refrigerant problem diagnosis & repair procedures. HVAC equipment does not "consume" refrigerant. You should not normally have to add or replace refrigerant gas. If the charge is too low or high surprising things happen and costly damage an ensue.
  • POST a QUESTION or READ FAQs about air conditioner or heat pump system cooling diagnosis & repair
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Air conditioner or heat pump refrigerant problem diagnosis & repair procedures: types of HVAC refrigerant problems.

Here we explain what happens if the refrigerant charge in an A/C or heat pump system is leaking, under-charged, over-charged, or if the technician used the wrong type of refrigerant. Understanding what's wrong with the refrigerant in the system can explain temperatures that are too low, too high, or it may explain refrigerant line and cooling / evaporator coil icing - too-cold, too-warm or too-weak air flow in the system.

This article forms part of our series on how to diagnose an air conditioner or heat pump that is not cooling: this article explains how to diagnose and correct air conditioning problems like lost or reduced air conditioner cooling capacity, reduced or no cool air flow, reduced or no actual lowering of the air temperature, or an air conditioner that won't start



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Air Conditioner Refrigerant Problems - Refrigerant Leaks, Low Refrigerant, Wrong Temperatures

Air conditioning refrigerant gauge set (C) Daniel Friedman

Refrigerant problems: Improper air conditioner refrigerant charge - too little, too much, too leaky: an air conditioner system which has lost some (but not most) of its refrigerant will sometimes run too cold at the evaporator coil, leading to coil icing and loss of cool air delivery in the home.

If the filters are clean and the coil ices-up this condition may be present. A service technician will need to evaluate and test the system and if needed, adjust the refrigerant charge.

Air Conditioning & Heat Pump Refrigerant Articles

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Continue reading at A/C REFRIGERANT LEAK DETECTION or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Or see REFRIGERANT PRESSURE DIAGNOSIS

Or see REFRIGERANT PRESSURE READINGS - home

Or see REFRIGERANT LEAK REPAIR

Or see REPAIR GUIDES A/C / HEAT PUMP - home

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REFRIGERANT PROBLEM TYPES at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS

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