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Regrig blows breaker in when entering defrost cycle, what is ohm of defrost heater?

Refrig goes in defrost cycle and blows breaker unplugged defrost heater and it doesn't but heater reads 21 ohms.. what is normal ohm reading on a frigidare mrs26lgjb1 defrost heater?

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21 ohms for a heater is not bad. I think what is happening is when the heater gets power and starts to heat the heater shorts to ground. causing it to throw the breaker.

Posted on Apr 15, 2009

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I have to use a blow dryer about every three weeks to deforst my freezer


The defrost circuit has failed. It made of the defrost heater, thermostat and timer or module. Typical failures are the heaters burn out, or if you have an older refrig, the defrost timer sometimes fails to run.

I don't know the make and model of your refrigerator, but the next time you need to defrost you fridge, unplug it, take an ohm meter and measure the resistance of the heater and thermostat while it is still cold. It should read less than 30 ohms. If it is higher then you need a new heater.

Sep 01, 2010 | GE Refrigerators

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I HAVE A GE MODEL GSS20IBTAWW.. LOOKING AT A DEFROST PROBLEM.. DOES THIS MODEL HAVE A DEFROST TIMMER OR A DEFROST THERMOSTAT OR BOTH ??? AND ALSO THE LOCATION WOULD BE HELPFUL... THANKS, DAVID


Your GSS model refrig does not have a defrost timer . It works off of the main control board . Pull the refrig out and remove the 8 " x 10 " panel . Behind this panel , is the main control board . Unplug the refrig . Remove the BLUE plug from the board , with 3 larger wires going to it . Looking at the blue plug , the sequence will be wire1,wire2,space,wire3 . Get a short piece of insulated wire , and strip about 1/4 inch from each end . Insert 1 end into wire2 , and the other into wire3 . Plug the refrig back in . After about 3 min , look in the freezer , at the bottom , behind the crisper , look for a red glow . If no red glow , unplug the refrig , and reassemble the plug and cover . This no glow , indicates a shorted defrost heater WR51X10101 . It is also advisable to replace the defrost thermostat ( pt. number WR50X10068 ) when replacing the heater . To access these parts , you will have to remove the inside rear wall of the freezer . The heater , is at the bottom of the coils , held on with 2 screws , and the thermostat , is the 1 " cylinder , with a blue and pink wire going to it , clipped on the top left of the coils .
If you do get a red glow , then the # 4 thermistor is bad . This tells the main control board , the temp of the coils , if they need defrosted , when they are thru defrosting . This thermistor is the 1 " long , torpedo looking piece , clipped on the top left of the coils , with 2 white wires going to it . Part number WR55X10025 . It would be advisable to also replace the # 5 thermistor , located at the bottom of the freezer , slightly in front of the drain , also with 2 white wires going to it , slid into a housing . This thermistor , is the freezer thermistor , which tells the control board , the freezer temp and when to cycle off due to selected temperature .

Aug 08, 2010 | GE Refrigerators

2 Answers

Coils freezing upevery 2 weeks or 3. goes upt to 48 in fridge ans 20 or so in freezer. runs great after i defrost it


Pull the refrig out and remove the 8 " x 10 " panel . Behind this panel , is the main control board . Unplug the refrig . Remove the BLUE plug from the board , with 3 larger wires going to it . Looking at the blue plug , the sequence will be wire1,wire2,space,wire3 . Get a short piece of insulated wire , and strip about 1/4 inch from each end . Insert 1 end into wire2 , and the other into wire3 . Plug the refrig back in . After about 3 min , look in the freezer , at the bottom , behind the crisper , look for a red glow . If no red glow , unplug the refrig , and reassemble the plug and cover . This no glow , indicates a shorted defrost heater WR51X10101 . It is also advisable to replace the defrost thermostat ( pt. number WR50X10068 ) when replacing the heater . To access these parts , you will have to remove the inside rear wall of the freezer . The heater , is at the bottom of the coils , held on with 2 screws , and the thermostat , is the 1 " cylinder , with a blue and pink wire going to it , clipped on the top left of the coils .
If you do get a red glow , then the # 4 thermistor is bad . This tells the main control board , the temp of the coils , if they need defrosted , when they are thru defrosting . This thermistor is the 1 " long , torpedo looking piece , clipped on the top left of the coils , with 2 white wires going to it . Part number WR55X10025 . It would be advisable to also replace the # 5 thermistor , located at the bottom of the freezer , slightly in front of the drain , also with 2 white wires going to it , slid into a housing . This thermistor , is the freezer thermistor , which tells the control board , the freezer temp , when to cycle off , associated with the fan speed also .

May 30, 2010 | GE GSH22KGR Side by Side Refrigerator

2 Answers

Fridge cooling freeze up i unplug the unit to defrost plug it back in and works great for about 2 weeks and then begins to freeze up again.it is a Side by Side unit


You have 2 heaters , behind the inside freezer panel. Both heaters , come together in a kit . This is usually the problem , with magic chef refrigs . When replaceing , use the complete kit with wiring . You will have to put the heater guards , with clips , on the new heaters .

Dec 08, 2009 | Magic Chef Refrigerators

2 Answers

Refrig. is about 4-5 years old and regrig side stop getting cold then the freezer followed suit-not getting cold. what should i do


Look inside the freezer on the back wall. If there is ice on the back wall the defrost heater and defrost thermostat are the usual suspects. They are both in the freezer behind the back panel.
Look for a deformed defrost thermostat. The glass heater will look burned. Both can be checked with a meter set for continuity. No continuity equals a bad part. Remove the wires from the parts before checking or a false reading will occur.

Nov 09, 2009 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

The fridge part becomes warm every 6 months. I have to empty the hole fridge, unplugged it and let it thaw with doors open for 72 hours...


Check that defrost heater is working. Pull back wall of freezer out, unplug refrig, unplug defrost heater and check with ohm meter that heater is good. If heater is good then check thermistors are good, if reading correctly, then change mother board.

Sep 30, 2009 | GE Profile Stainless Bottom-Freezer...

1 Answer

GSS25PGMF FREEZER NOT WORKING. This morning when I opened the freezer door, everything was defrosted. The ice tray was half water. Their was frost on the inside back of the refrig. The regrig side...


You have a defrost problem. You can defrost the unit down by removing the back panel and get a hair dryer and go back and forth over the defrost. Make sure that you don't get any of the coils too hot or you'll destroy your unit. But you'll need a meter to check which part or parts are bad. Do you have a meter? But you will either need a defrost timer, defrost heater or a defrost themostat. But you'll have to have a meter to OHM out the defrost heater. If your unit beeps then you'll need to replace the defrost timer and defrost themostat. If the heater checks bad then you'll need to replace only the defrost heater.

Aug 20, 2009 | GE Refrigerators

1 Answer

GE TBX18BLJ --Freezer comp frosts/ices up. Defrost


The next step would be to unplug the refrigerator and remove the rear panel and defrost so that you can unplug the defrost heater on one end and check the continuity. 305175 Defrost Heater and defrost thermostat Part number 3489. If you change the defrost heater you should also change the defrost thermostat. Let me know the results. Remember above 60 degrees the defrost thermostat will show open with your OHM meter. Sea Breeze

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Aug 15, 2009 | GE Refrigerators

1 Answer

No ice


when you say freeze up on the back panel are you reffering to the back wall of the freezer side of the refrig if yes you can start by removing that same back panel there you should find what looks like snow this must be defrosted fully with a blow dryer make sure that the refrig is unplugged before you start. if you have an ohm meter this would help find the defrost heater its a glass rod w/a wire element passing through it it runs the width of the refrig freezer check for any signs of green corrosion the glass shouldd be see thru if its cloudy chances are its bad unplug it / them from their terminals put your ohm meter and see if its good if its bad replace both. if not i will check tomorrow to see if were on the same page

Jan 03, 2008 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

Frigidaire side/side refri section warm


Oceanrunner, it looks like a couple of things might be going on: One is how much defrosting did you do. If it was a full defrost, you might have too many door openings going on. This causes condensation. Do a full defrost and then be sure the door is closed when not actually getting things in/out. Don't forget to check to see if your condenser coils are clean. If not, clean 'em! That may fix it.

It is possible that your defrost timer is defective but I think not based on your defrost cycle starting. It is possible that the defrost coil is bad. This means that you'll have to access the coil and check if for continuity. Typically, this is located with the coils and below them in the back of the freezer. One wire on each side. Unplug the box...Wiggle 'em to clear any corrosion... Unplug..If you've got a multimeter, check for about 100 ohms between the terminals...You can then turn the unit on and wait. See what happens. If frosting begins, actuate the defrost cycle. (Frosting should be even after about 5 minutes or so across they pipes. If the gas level is low, the frosting will not be even.)

Some cold water units run through the coils. If they get too cold...they freeze. This is caused by low gas or by frosting from other sources. Don't panic: this unit has an extended warranty on the sealed unit...the compressor and all that...for 5 years. That means the gas, too. Call your manufacturer for service.

Nov 28, 2007 | Refrigerators

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