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External unit on my walk-in cooler will not shut off. Seems to be due to the Ranco Pressure Sensor. How do I fix or adjust?

External unit fan runs constantly this year.

1 Answer

Claude Kayser

Refrigerators Master 9,098 Answers
Posted on Dec 10, 2015

Claude Kayser

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Diagnosing Walk-in Coolers & Freezers Problems

blog.uscooler.com/walk-in-cooler-freezer-problems/

Jun 7, 2013 - Diagnose Walk-in Cooler & Freezer Refrigeration Problems ... For many evaporator units, the ice isn't melted, or the water isn't .... It works for few days (2-3 days) and it stop and does not run until I shut off the power .... My walk in compressor seems to be running and not shutting off. .... outdoor ambient= 85

Maintaining & Cleaning Your Walk-in Cooler or Freezer

blog.uscooler.com/maintain-walk-in-cooler-freezer/

Jan 7, 2015 - Torn gaskets can let warm air infiltrate your walk-in cooler or freezer. Close the door when not in use. Do not block or prop the door open for extended periods of time. ... on suction lines between the condensing unit and evaporator coil. ... Make sure the lights are off when exiting the walk-in. ... clean walkin ...

[PDF]INSTALLATION & SERVICE MANUAL - Polar Leasing

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Diagnose and find solutions to problems with your evaporator or condenser in your walk in cooler or freezer Answers for 12 common refrigerations issues

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Chiller power pack controlled by ranco temp control won't shut down compressor once it reaches set temperature just runs and runs and runs

There are a few potential reasons why your chiller may not be shutting down even when it reaches the set temperature:

Faulty temperature control: If the Ranco temperature control is faulty, it may not be sending the correct signal to shut off the compressor and fan. Try replacing the temperature control to see if this resolves the issue.
Incorrect wiring: Make sure that the compressor and fan motor are wired correctly through the Ranco temperature control. If the wiring is incorrect, the temperature control may not be able to properly control the chiller.
Dirty condenser coil: A dirty condenser coil can cause the chiller to run constantly as it struggles to cool the refrigerant. Check the condenser coil and clean it if necessary.
Low refrigerant charge: If the chiller is low on refrigerant, it may run constantly as it tries to maintain the set temperature. Have a technician check the refrigerant level and add more if necessary.
Faulty compressor: A faulty compressor may continue to run even when the set temperature is reached. Have a technician check the compressor to see if it needs to be repaired or replaced.

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Nov 13, 2022 • Heating & Cooling

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True Beverage Cooler making random rattling sound.

Sounds like it may be cycling off hard due to high discharge pressure. Make sure the condenser under the unit is clean and the fan motor is running. It shouldn't be running 60f. A lot of people make the mistake of checking temperature with an empty unit. Put a couple of gallons of water in the unit so that the temperature evens out. These units do NOT run based on air temperature but rather on inside coil temperature. That will swing wildly with no load in the unit.

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My Magic Chef MCWC44DZ Wine Cooler does not get cold. i do not have any error messages any more due to me ordering the PTC relay and fixing the connections. I see the bottom fan working and i feel the...

You may have a Freon leak at the compressor. Running this unit at low pressure will only make it leak that much more. Have a technician check it and refill is there is a fill port available.

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Feb 26, 2014 • Magic Chef MCWC44DZ Wine Cooler

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My Xantrex Technology Heart Freedom 25 will not charge. The unit turns on and begins to charge but the overheat light comes on within 2 seconds and shuts the charging function down. It turns on the...

Call Tekris Located in Farmingdale NJ 7329384996 Great people to deal with Fair prices excellent service

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Oct 27, 2017 • Xantrex Technology Heart Freedom 20 12...

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I work for a schools district and a problem with our walk in. cooler is our condenser fan wasnt workin, dirty condenser coil. After I fixed those problems, my compressor is coming off on low pressure. It...

@50/300 I assume it's a med. temp R-22 pump down walk in. Head pressure sounds a little high, probably been overcharged to compensate for a restriction in the metering device (or malfunctioning TXV). Check the solenoid (if pump down), metering device, and filter driers first. If that fails, lineset restriction or non-condensables/water in the charge would be next on my list.

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Sep 29, 2011 • Heating & Cooling

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How can I adjust the temp. on a norlake walk in cooler?

There are many variations for a Norlake system
I assume the cooling coil hangs from the ceiling of the cooler and the condensing unit sits on the top?
The temperature is controlled by a control that is located in the condensing unit on the top of the cooler. This can be either;
\ a digital thermostat. You will need the progam key to get in
\mechanical thermostat. Adjust the dial setting
\ pressure stat. Adjust the dial setting

Probably best to get a technician in

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Apr 22, 2011 • Refrigerators

2helpful

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I just bought a wine cooler not sure where to start to fix it. Fans will not turn on

Hi there.........i take it this is a used / second hand wine cooler......if so you've probably discovered why its been discarded........problem could b due to a faulty compressor unit....the fans are usually wired through the compressor...and run in conjunction with it........if the compressor isnt running then the fans are out .........if the comressor is running then check that there is nothing impeeding the fans rotation.....check for broken or damaged wiring.....check for tampering by someone else....check continuity of wiring through fan coils.........check for faulty starter unit on compressor

regarddss ir Galahad

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Aug 12, 2009 • Haier BC112G Wine Cooler

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WHY THE FAN IN MY WALK-IN COOLER GETS FROZEN

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Jun 30, 2009 • Refrigerators

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TRUE COOLER COMPRESSOR CYCLES ON 45 SECONDS AND OFF FOR 2 MINUTES.SEEMS TO COOL FINE MAINTAINS 38 DEGREES, OTHER TRUE COOLER WE HAVE DOES NOT DO THIS...ANY SUGGESTIONS?

The unit has a temperature swing adjustment screw located behind the thermostat plate.If you remove the knob and the face plate you will see it,It can be adjusted there.It may also be the thermostat bulb is going bad or touching something and giving a false signal to the compressor.

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May 03, 2009 • True Refrigerators

1helpful

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Refridgerator Not Cooling

If top is compleatly warm it is probley the fan motor, lot of failures on them. Replacement one will be a different looking motor. Verify motor is not turning, located in the back of the freezer in the top middle, behind small grill. Will see fan blade pointed up, should run whenever compressor is on.

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Aug 01, 2008 • Kenmore 73502 / 73504 / 73509 Bottom...

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External unit on my walk-in cooler will not shut off. Seems to be due to the Ranco Pressure Sensor. How do I fix or adjust?

1 Answer

Claude Kayser

Diagnosing Walk-in Coolers & Freezers Problems

Maintaining & Cleaning Your Walk-in Cooler or Freezer

[PDF]INSTALLATION & SERVICE MANUAL - Polar Leasing

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Chiller power pack controlled by ranco temp control won't shut down compressor once it reaches set temperature just runs and runs and runs

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My Magic Chef MCWC44DZ Wine Cooler does not get cold. i do not have any error messages any more due to me ordering the PTC relay and fixing the connections. I see the bottom fan working and i feel the...

My Xantrex Technology Heart Freedom 25 will not charge. The unit turns on and begins to charge but the overheat light comes on within 2 seconds and shuts the charging function down. It turns on the...

I work for a schools district and a problem with our walk in. cooler is our condenser fan wasnt workin, dirty condenser coil. After I fixed those problems, my compressor is coming off on low pressure. It...

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I just bought a wine cooler not sure where to start to fix it. Fans will not turn on

WHY THE FAN IN MY WALK-IN COOLER GETS FROZEN

TRUE COOLER COMPRESSOR CYCLES ON 45 SECONDS AND OFF FOR 2 MINUTES.SEEMS TO COOL FINE MAINTAINS 38 DEGREES, OTHER TRUE COOLER WE HAVE DOES NOT DO THIS...ANY SUGGESTIONS?

Refridgerator Not Cooling

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External unit on my walk-in cooler will not shut off. Seems to be due to the Ranco Pressure Sensor. How do I fix or adjust?

1 Answer

Claude Kayser

Diagnosing Walk-in Coolers & Freezers Problems

Maintaining & Cleaning Your Walk-in Cooler or Freezer

[PDF]INSTALLATION & SERVICE MANUAL - Polar Leasing

Add Your Answer

Attachments: Added items

Related Questions:

Chiller power pack controlled by ranco temp control won't shut down compressor once it reaches set temperature just runs and runs and runs

True Beverage Cooler making random rattling sound.

My Magic Chef MCWC44DZ Wine Cooler does not get cold. i do not have any error messages any more due to me ordering the PTC relay and fixing the connections. I see the bottom fan working and i feel the...

My Xantrex Technology Heart Freedom 25 will not charge. The unit turns on and begins to charge but the overheat light comes on within 2 seconds and shuts the charging function down. It turns on the...

I work for a schools district and a problem with our walk in. cooler is our condenser fan wasnt workin, dirty condenser coil. After I fixed those problems, my compressor is coming off on low pressure. It...

How can I adjust the temp. on a norlake walk in cooler?

I just bought a wine cooler not sure where to start to fix it. Fans will not turn on

WHY THE FAN IN MY WALK-IN COOLER GETS FROZEN

TRUE COOLER COMPRESSOR CYCLES ON 45 SECONDS AND OFF FOR 2 MINUTES.SEEMS TO COOL FINE MAINTAINS 38 DEGREES, OTHER TRUE COOLER WE HAVE DOES NOT DO THIS...ANY SUGGESTIONS?

Refridgerator Not Cooling

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Chiller power pack controlled by ranco temp control won't shut down compressor once it reaches set temperature just runs and runs and runs

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