in the all I had to do was remove one pen from the time clock too many defrost one pin at 6;00am one pin at 6;00pm for 40 minutes each in this case the box was a hill phoenix call tech support tell them the model that you have and they will give you recommendations for defrost time the box is what you want to know what you have that is what is important to know

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15 thoughts on “Troubleshooting commercial refrigeration

  1. 2020 Subaru WRX 6spd Manual says:

    I see he's working on a hill phoenix unit. I'm in the process of installing seven remoted hill phoenix systems. The boxes are sort of crappy but the condensers use Copeland compressors. A note, if the hill phoenix freezer you're installing uses a carel control, the wiring diagram will suck.

  2. Bobby M says:

    First you pump down ONE sys not the whole rack and dump it in on the liquid side. Since its pumped down it won't be high pressure. Second, if you always have flood back sounds like you need to adjust some valves "Mr. Elite"

  3. Jorge Arteaga says:

    Need help troubleshooting commercial refrigerator, already filled system but compressor still doesn’t run. I ran compressor independently and the compressor spins but the system has no pressure so compressor won’t run as intended. The system has no leaks

  4. Tree Frogs says:

    One way to check the low pressure control to make sure it's on calibration you could pick out one end of the low pressure control with a quarter inch nut put it on the gauge I'm set the pressure on the gauge on coordination with setting increase the pressure probably with CO2 see if it come on on the right pressure under pressure control and gauge must be read the same if not calibrated 95% of the time it's off calibration this is a very important test especially for a freezer box on a pump down system

  5. Tree Frogs says:

    leaking solenoid will freeze up inside this is one sign short cycling leaking discharge valve on the compressor this is another one I hope there's a check while on a discharge line

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