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I HAVE A UNIT PURCHASED IN 2014 THAT NEVER PROPERELY RAN…

Customer Question
I HAVE A UNIT PURCHASED...
I HAVE A UNIT PURCHASED IN 2014 THAT NEVER PROPERELY RAN RIGHT. TOOK IT BACK TO THE DEALER AND HE PUT IT ON A HOSE AND IT RAN FINE. WE TOOK IT BACK RE-INSTALLED IT AND THE UNIT KEEPS GOING INTO RED LIGHT INDICATOR MODE AND NOT OPERATING
Submitted: 2 years ago.Category: HVAC
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Answered in 28 minutes by:
2/15/2016
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,358
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Sounds like it is going out on head pressure not enough water flow thru condenser. does this system have a pump that pump water thru from a well or a loop system. Russ

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Customer reply replied 2 years ago
It's a loop system comes right out of the water coming into the building and then drains right back out but there are no pressure valves attached just a 3/4" water line going in 3/4" water line goong out when we turn on power to the unit the green indicator light on the unit stays lit foe about 30 seconds and then turns red the unit. Never turns on
Customer reply replied 2 years ago
I understand that probably is the cause but what can be done to rectify the issue
Customer reply replied 2 years ago
it has a full 3/4" water line coming in to the building not on a well. could it be that it is draining the water to quickly and pressure does not have time to build up?
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

To make proper diagnosis gages would have to used on unit to see what the refrigerant pressures are running. I need to know what the high side pressure is doing when unit starts up. Russ

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Customer reply replied 2 years ago
the unit never actually starts up
Customer reply replied 2 years ago
what if I closed off the drain and let the water fill up in the unit and then try to turn it on with that create an unsafe condition or a back pressure
Customer reply replied 2 years ago
What does it have to be circulating in order for the unit unit to kick on
Customer reply replied 2 years ago
I'm a licensed master electrician and I have been installing wiring to AC units for 30 years this is the first water cooling unit I've worked on
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

If you can get a set of gages I can walk thru the procedure for checking pressures. Really need to know what the head pressure is doing. Does not sound like it is getting enough water flow. Can you see where the water comes out of the unit. Russ

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Customer reply replied 2 years ago
the water outlet is connected to a hose its dumping water at the same rate that it is inputting it . this unit belongs to my cousin and I am 2000 miles away right now the last time I was there which was last month I tried to help him troubleshoot the issue. I will be going back in a few weeks. I will get a set of gages and then get back with you for guidance. do you mean a triple set of gauges with red yellow and blue hoses?
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Yes You will know as soon as you install gages and start unit if it is water flow problem. Russ

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