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
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 ...
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@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.
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
It has lost some freon and is not charged correctly...the unit is pumping down and shutting off on low pressure and then after being off a bit the pressure comes up and it restarts...
Need to check the charge and top it off and you will be good to go..
the motor could be defective or it could be low o refrigerant causing the pressure switch to not kick on the fan. Could even be wires have come loose from the fan. If the fan does not work it won't cool. however it mould most likely cosy you more to fix if you take it to a shop to have it repaired if you have the tools to test it with I can help you so let me know if you have a test meter volt ohm meter and I can tell you how to test the system.
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
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.
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.