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10-15-2012, 07:28 PM #40
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i have seen pump down systems that utilize a relay that is energized by out side of compressor contactor , this is done to prevent heaters from coming on during defrost , which creates high current draw and can cause breaker to trip on single units . as far as pump down goes . low psi control should be set at approx 5psi . As
others have mentioned use gauges to verify . the schematic supplied should help out ... if none available trace wires these systems are usually very simple .
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10-15-2012, 07:40 PM #41
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How about billing the customer for extra time cause you have to pull out your cell to ask HVAC Talk How to fix it ?
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10-15-2012, 08:12 PM #42
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Originally Posted by OldSchoolMech
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