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29 <br />TROUBLESHOOTING - CONDENSING SYSTEM [TRAINED SERVICE PROVIDERS ONLY] <br />Head Pressure Too High Check that the Condensing Coil is not dirty or covered. <br /> Check that Condensing Fans are working. <br /> Check that refrigerant is not overcharged. <br /> Check to verify that a non-condensable is not in the system. <br /> Check that Liquid Line Drier is not plugged. <br /> Check that there are no close-offs around Condensing Coil. <br /> Check Set Point Temp.; it may be adjusted too high. <br /> Check System Operating Temperatures. <br /> Check that Store Ambient Temperature isn’t above maximum <br />allowed. See Overview and Warnings Section. <br />Head Pressure Too Low Check that Refrigerant Charge isn’t too low. <br /> Check that Suction Pressure isn’t too low. <br /> Check to verify that Compressor Valves aren’t bad. <br />CONDITION TROUBLESHOOTING