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Ice keeps building We defrosted and now it's returned. Ice builds up behind coils. SUB ZERO 501f standalone freezer. would like to check drain for clog. where is the drain?

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Timer or defrost element maybe defrost terminate thermostat

Posted on Oct 04, 2010

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Excess water dripping into refrigerator from freezer. I am in the process of defrosting. Ice build up behind freezer back wall. Do I need a new heater or will clearing the ice from drains suffice?


Hello,

Clearing the ice build up is a good start,the problem though is the drain pan under the coil in the freezer thats iced up is blocked so when the defrost heater comes on and melts the frost from that coil,it the water is collecting in the freezer and in many cases drips into the fresh food compartment,clearing the drain will resolve your leaking/ice build up issue.THE DEFROST HEATER IS GOOD melting the frost in the first place and hence forth that melted frost stays in the freezer and becomec ice.

Gene

Aug 09, 2011 | Roper RT16DKXK Top Freezer Refrigerator

2 Answers

I have a sub zero side by side. The refrig side is at 40 degrees but a 10 inch by 6 inch piece of ice keeps forming on the left size, back wall. What would be the likely cause of the ice build up??


Hello,

Their are 2 possible things causing the ice build up

1) the condenser coils is very dusty and must be cleaned,to clean it remove the top grill and the smaller panel behind the grill,use a vacuum to clean all the dust from the coil

2) the evaperator coil in the refrig. behind the back wall has a small refregrant(freon) leak in it and the coil needs to be replaced

I hope thats its due to the upper coil needing to be vacuumed since its something you can do at no cost,but even if it doesnt fix the problem the coil needs to be cleaned to help both the freezer and fresh food section work more efficently
if after cleaning the upper (condenser) coil and turning off the fridge to melt is away ice build up from (evaperator)coil,if the ice ball reoccurs the repair could be as much a $1,000.00 to replace the coil and recharge the refrigerant

Jul 29, 2011 | Sub-Zero Refrigerators

2 Answers

My sub-zero 642 will not get colder in the freezer than about 9 degrees and the fridge won't get colder than about 45 degrees. I turned off the breaker and vacuumed the coils, but still no change. ...


The Sub Zero 642 uses independent refrigeration meaning the freezer and refrigerator each has their own system. Best to have an "Authorized Factory Service Company" check it out.

Jun 08, 2011 | Refrigerators

1 Answer

MY GE REFRIGERATOR MODEL TFHW24RRA HAS ICE BIULD UP ON THE FREEZER COILS


the freezer is not going into the defrost cycle properly. first completely defrost the freezer compartment. to do this you first remove all the food from the freezer compartment then unplug the refrigerator from the wall. next put a large pan of very warm water in to the freezer and close the door. the heat from the hot water should melt the ice off the freezer coils. if the drain is working the water should go down the little drain into the catch pan in the bottom of the unit( way down underneath next to the floor) if it doesn't drain down use towels to soak up the water then find the little hose and drain that go to the bottom and clean it out. if the drain was blocked that could cause the ice build up. If the drain is not blocked then the defrost timer or the defrost coil is not working. the defrost timer is a small unit usually located behind the kick plate at the bottom of the fridge or sometimes at the back behind the paper shroud. this is the manual advance knob and should allow you turn the knob until the defrost position is reached. you should hear a little click as it reaches the defrost position. make a mark on the timer knob with a magic marker and then plug the refrigerator back in. over the next 4 hours you should see the knob turn (like a really slow moving clock). after you plug the refrigerator back in watch for ice build up on the coils. If it starts to build up again you will need to figure out if it is the defrost coil or the defrost timer that is not working. the manual defrost technique will keep the unit in service but is a total pain. eventually you will need to replace the defrost coil or once in a while it is the defrost timer that doesn't work. this is not easy even for the repair man but it can be done. first locate the defrost coil(a long thick wire looking thing) and check for continuity. if you don't have a multi meter and a basic understanding of the repair technique you should get professional help. to keep the refrigerator running and keep the ice off the coils you will need to repeat the defrost procedure from time to time. this is not that easy to do but will keep your refrigerator running.

May 09, 2011 | Refrigerators

1 Answer

I have ice building up behind hydrator drawer and behind freezer drawer around a tube.


defrost your unit check the defrost timer rotate it manually together with the defrost heater. lessen the thermostat setting then observe the unit after checking and defrosting try to unplug your unit for several minutes plug it in after.

Mar 06, 2011 | Sub-Zero 611 / O Bottom Freezer...

2 Answers

There is an ice build-up underneath the humidity control drawers and the food in the drawers is freezing. It is a model RB 215 LABB. We have adjusted the temperatures of both the freezer and the fridge,...


The problem isn't the humidity control or temperature control. When the refrigerator automatically defrosts it goes through a cycle of heating and melting the ice build-up then drains this water to a tray at the bottom of the refrigerator (underneath). The drain tube that lets this water flow down to the bottom tray freezes so the ice begins to build inside the refrigerator section.

The solution to this is to defrost the tube so water can flow again. There are heating coils in the freezer section behind the plastic in the back that you must remove and defrost.

This is an inherent problem with a lot of refrigerator/freezers. You should probably have your refrigerator serviced and to check the heating capability of the coils to keep this tube from freezing. Otherwise put this on your monthly schedule of manually defrosting.

Sep 23, 2010 | Samsung RB2155 Bottom Freezer Refrigerator

1 Answer

I have a Sub-Zero 501 F upright freezer. I have never hooked up the ice-cube maker. There is a problem with ice build up in the drain tray and it overflows into the ice-maker. I had a tech in and he put...


sounds like the mullion heater (drain tube heater is open). take back off (after removing all shelves, including the glass tray (remove 4 screws). Pull back out, careful not to pull wires off T'stat. Run the new wires on heater behind evaperator, placing heater down in drain hole. Good Luck
Joe

Aug 09, 2010 | Sub-Zero Freezers

1 Answer

I have a Sub-Zero Model 501F freezer making ice cubes


Check defrost heater that goes into drain tube. When the drain freezes ;the defrost water spills into the icemaker.

Oct 08, 2009 | Freezers

1 Answer

Subzero Freezer ice keeps building behind coils


in 601 model. really common problem is the drain hater. watch close the ice maker for a BIG long ice. on the cotton psrt of the back wall. some models have 1 some 2 depends in the serial num. ask you tech for replace the DRAIN TUBE HEATER. that way your cover. really helps a lot the code number...................good luck................. leave a comment...........thanks

Sep 28, 2009 | Sub-Zero 19.3 cu. ft. / 547 liter Upright...

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