Question about Amana ABB1924DEB / ABB1924DEW / ABB1924DEQ Bottom Freezer Refrigerator

2 Answers

Freezer icing up, looks like a bad gasget frost pattern, but the gasget is fine. I suspect a bad defrost heater. I do not hear the refer turn off, I wonder what is the duty cycle? one hour on ten minutes off? or some other ratio? it is an Amana/Maytag model abb1924dew bottom freezer. Thank You Rwill

Posted by on

  • rwill53 Oct 12, 2010

    I am about to turn refer back on and advance the defrost timer to see if the defrost heater heats.
    the defrost heater tests good(not open) with an ohm meter

    I have a thermistor apparently on the wall of the freezer
    what is the purpose of this? please.

    I brought the thermostat to a parts house and he thought that was not the problem.

    I tested it, and when it is warm it is open.

    I don't know the theory of this, how it works.

    could you enlighten me?
    Rwill

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,066 Answers

DEFROST PROBLEM
The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can't flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad, it can prevent the heater from coming on OR it won't turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it's bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it's in the defrost mode.



you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls
Your control is part 5 in this diagram. http://www.searspartsdirect.com/partsdirect/part-model/Amana-Parts/Refrigerator-Parts/Model-ABB1924DEB/1268/0161000/M0608084/00003?blt=06&prst=&shdMod=

Posted on Oct 13, 2010

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,796 Answers

Hi!!
The most common causes for freezer icing up are, bad defrost timer, bad defrost heater, bad freezer thermistor, low refrigerant, defective evaporator fan and incorrect Temp. Settings and freezer door not fully closed.
The first thing is to defrost the evap. coil and then check for faulty components. to do this unplug unit form wall outlet, remove the evaporator panel and use a heat gun or hair dryer to melt all the ice built on the coil and air ducts. Have some towels handy in case the melting ice overflows the drain pan. Then check the mentioned components.

THE FOLLOWING ARE DIRECTIONS ON HOW TO ACCESS AND REPLACE THIS COMPONENTS, DO NOT REMOVE THEM UNTIL YOU ARE CERTAIN THAT THEY ARE DEFECTIVE.
Freezer Back Panel NOTE: Freezer compartment should now be empty and walls should be clear of anything that will obstruct removal of back panel. 1. Loosen screws that mount icemaker to freezer compartment walls. 2. Pull icemaker gently away from wall of compartment. As you do so, work fill cup free of fill tube. Unplug icemaker electrical connector and remove icemaker from unit. 3. (Pull out Drawer only) Loosen and remove screws that hold 2 basket glides in place at left and right sides of compartment. 4. If unit has no icemaker pry with flatblade icemaker connection cover. Remove cover. 5. Remove hex head screws that hold back panel and remove panel. 6. Squeeze tabs on ice maker plug to release it from back panel
Evaporator Fan, Evaporator Motor 1. Follow instructions in removing freezer back panel. 2. Remove screws that anchor evaporator fan bracket to back wall of compartment. Pull fan and bracket out of place as a unit 3. Free fan bracket from wiring harness by disconnecting wires to motor and wire in clips that go to defrost terminator. 4. Pull evaporator fan blade off motor shaft. 5. Separate bracket and motor by squeezing lower retainer bracket to release motor from bracket. 6. When reinstalling motor reference position of terminals of new motor the same as old motor.

Freezer Thermistor (some models) 1. Remove Thermistor cover located on the Evaporator Cover by inserting a screw driver in slot and releasing tab holding Thermistor cover on. 2. Unclip Thermistor from cover and cut wires to Thermistor. 3. Remove Thermistor.
Defrost Terminator (Thermostat) 1. Terminator is fastened to evaporator tubing with a spring clip. 2. Snap terminator off tubing and cut wires to terminator. 3. Remove terminator from unit.
Defrost Heater 1. Follow instructions in removing freezer back panel. 2. Remove hex head screws retaining evaporator to back cabinet wall. 3. Disconnect plugs from both sides of heater. 4. Release connectors from air dams on each side of evaporator coil. 5. Grip evaporator tubing at left and right sides and tug evaporator sharply forward. Evaporator will pop out of plastic clips that hold it to back wall of unit. Then roll bottom of evaporator forward and up, exposing evaporator heater in its location amid fins at bottom of evaporator.
Keep me posted!

Posted on Oct 12, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Replace fan motor


Hello Theresa;

My name is Peter. I am a retired field service refrigeration technician.

You did not provide a model number which is located on a label on the upper liner side wall in your fresh food section. So, I do not know what you have.

There are several reasons your fresh food section is not cooling:

1.) Cooling air vent from freezer to fresh food section. Find the air vent, put your hand in front of it, do you feel any air flow? This vent may be iced up or closed.
2.) Freezer cooling coils iced up - Look at the back wall of your freezer, is there frost or ice on the wall? You may have a bad defrost heater.
3.) Cooling coil fan - Open the freezer door do you hear the fan? Push in on the light switch, do you hear the fan?

Get back to me.
Peter Goodwin
Glen Burnie, MD

Jun 10, 2015 | Samsung Refrigerators

1 Answer

Is my defrost timer broken or my thermostat? The freezer was holding -30 temp but now is at +30.


Is the compressor running? If not - the timer could be stuck in defrost mode. If it is ruinning, then the freezer coil should be cold. If it is choked with frost & ice - then the defrost heater isn't getting powered (bad timer or defrost terminator - or is getting powered but has burned out.

You should allow the ice and frost to melt completely before turning back on again. Typically ice and frost don't build up so bad in a few days time to cause the temperature rise you're describing If getting cold - the compressor and refrigerant is likely OK, if not the defrost circuit is suspect. If compressor running but not getting cold - a refrigerant leak / charge level may be causing the problem.

May 18, 2015 | Arctic Air 22 cu. ft. Commercial Freezer...

1 Answer

Hss25gfpd freezer not freezing


when you had the back wall off how did the evaporator coil look?was the frost pattern even all over the coil or just on the top or bottom,if it didn't have an even frost pattern covering the whole coil you have a freon leak and will have to replace the machine.it will just keep getting warmer

Jul 08, 2012 | Hotpoint HSS25GFP Side by Side...

2 Answers

My fridge works fine but sometimes the freezer will stop working and you can here a sizziling sound coming from the back like water dripping and hitting something hot. I unplug and plug back in and it...


Hello, welcome to FixYa.

This is just the normal operation...specifically the defrost cycle every frost free unit must cycle through every 8-12 hours.

You are correct, the sizzle is water (from the melting ice) dripping onto the defrost heater. It is all normal so no need to worry.

Thank you for choosing FixYa today. Please take a moment to rate your experience here.

Regards,

Macmarkus :)

Aug 15, 2011 | Kitchen Ranges

1 Answer

The freezer isn't cool enough and the refrigerator temperature goes up when we put stuffs.


I would first look under the ice box for signs of air restrictions. Clean out the bottom and make sure the fan and compressor is working. Inside the ice box listen to see if the fan is running in there. If that is fine I would look for signs of frost on the back wall of the freezer. If frost is present then ice is on the coils and you have a defrost problem. Their are 2 basic circuits in an ice box. Compressor run AND Defrost run. Compressor run circuit is anywhere from 8 to 12 hours depending on manufacturer. Defrost is 21 minutes. On new fangled electronic ice boxs the brain decides when defrost is needed using inputs from sensors, compressor run time, and how many times the ice box is opened and closed. But the new fangled ice boxs still have a defrost heater and thermostat like any ice box with automatic defrost has. Why do we need a thermostat? The heater is very powerful. It could easily destroy the ice box. It takes only moments to elevate the crawlspace inside the evaporation compartment to 50 degrees F. This keeps any frost that could turn into air flow blocking ice at bay.
Remember the defrost time is 21 minutes. If that heater was left on for 21 minutes it would not be purty. The termination thermostat is recommended to be replaced if it goes bad or whenever the heater is replaced. I say replace all 3 things in the circuit and be done with it. But who these days can afford that? If you suspect a defrost problem just unplug the ice box for a day or 2. If the ice box goes back to performing ok then you can suspect you indeed have a defrost problem.

May 21, 2011 | Refrigerators

1 Answer

Freezer has slight frost built up. Fridge is only slightly cold - set on 7. It is 5 years old. What might the problem be?


Below the evaporator fan is the evaporator coils. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).

If the evaporator coils behind the back panel of the freezer are icing up heavily because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

Aug 29, 2009 | Refrigerators

1 Answer

Amana Bottom Freezer 7 years old running but not cold.


Check to see if the condenser fan at the back underneath near the compressor is running. If no check fan.

Are the condenser coils near there warm or room temp. should be warm


How to check stuff>
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php


Is the evaporator fan in the freezer running. It blows cold air into the fridge side through a damper in the wall between the freezer and fridge. Make sure the damper is open.

Below the evaporator fan is the evaporator coils. Remove the back cover inside the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).
heavy frost-
If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

Aug 25, 2009 | Refrigerators

1 Answer

Similar UR30G issue


. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM). If heavily iced up...

How to check everything
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.


Aug 21, 2009 | Refrigerators

2 Answers

Neither freezer or fridge sides are getting cold enough. There was ice buildup on the back of freezer where the air comes out, but I removed all this and 2 hours later, still not cooling. Fan is running,...


You have a defrost problem. Common problem on most frost free refrigerators because the ice buildup does not allow efficient heat transfer to evaporator coil. You will need to remove the cover in the back of the freezer compartment (you know , where you scraped of the ice).When you remove panel you will see a buildup of ice on your evaporator coil. This will have to be thawed out by hairdryer or some other means before you move onto next step.Next you will see a heater element (black thingy ) or glass tubes with internal elements .These are your defrost heaters. They can usaully be visually inspected but best to use an ohmeter to check continuity.If you have good heaters you will want to put frig into defrost by manually turning the defrost timer clockwise untill you hear frig cut off. (Look for timer inside right frig compartment next to thermostat.) power will now be diverted to heaters and will get hot for duration of defrost cycle. If defrost thermostat is bad this could be the case of problem( round looking disk thingy clamped to coil and wired before heater) You can check by bypassing the defrost therm directly to heater and see if heater works while in defrost cycle.You will want to replace it as this is the device that turns off the heater so as not to overheat and melt plastic in freezer.Just reinstall everthing and you should be good to go.

Jul 24, 2009 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

Heavy frost in freezer, warm refer compartment.


Hi, With the information you supplied i'm going to assume there is an ice build up at the rear of the freezer. Your problem is going to be with your defrost system. I will also assume you have the ability to repair this yourself. This is going to be one of three problems with your refridgerator, 1st thing to do is remove shelfs and panel in the back of the freezer...you should see ice build up on the evaporator...don't worry get a hair dryer and melt the ice. Next locate the wires for the heater...using a multi meter test the heater for condinuity...if the heater is bad replace it, If the heater is good replace the defrost thermostat..the stat normally is a barrel looking part clipped onto the evaporator pipe. The last possible problem could be the evaporator fan, have you heard the fan running in the past few hours?..if you are not sure pull the panel out to where you can see fan and watch it over an hour to see if it turns. I have included links with pictures of what the parts you need to check are: http://romulusappliance.com/manufacturers/maytag/refrigerators/575432.JPG defrost stat http://www.hotekalliance.com/UploadFiles/2008627111553382.jpg heaters http://www.applianceblog.com/archives/EvapMotor1018185.jpg evap fan. Hope this helps. If you have any other questions please feel free to comment again. If you decide to get a repair guy in should not cost you any more then $120 - $200 depending on make/model/problem Good luck!

Jul 12, 2009 | Refrigerators

Not finding what you are looking for?
Amana ABB1924DEB / ABB1924DEW / ABB1924DEQ Bottom Freezer Refrigerator Logo

145 people viewed this question

Ask a Question

Usually answered in minutes!

Top Amana Refrigerators Experts

Charles T Nevin
Charles T Nevin

Level 3 Expert

4066 Answers

John Tripp
John Tripp

Level 3 Expert

4654 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Are you an Amana Refrigerator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...