Author Topic: G.E. GTH22SBRARBS Top Mount Refer  (Read 3020 times)

Offline generaltech1

  • Technician
  • Member Since: Mar 2012
  • Posts: 31
  • Country: us
  • 20 yrs combined appliance and hvacr
G.E. GTH22SBRARBS Top Mount Refer
« on: March 22, 2012, 07:23:12 PM »
Ok I get a call that this refer isn't cooling, but when I get there, of course its cooling.  Temps looked good, amp draw off the compressor good. They tell me that it will work fine for a while, then melt the ice, then refreezes it into a block in the bucket.  Dont have a service manual or schematic, but I suspect the motherboard, just as an educated guess. Any help would be great, thanks!

Model GTH22SBRARBS



Offline JWWebster

  • Technician
  • Member Since: Jan 2008
  • Posts: 8781
  • Country: us
  • SublimeMasterJW
    • Buy me a beer through paypal
    • JW's Sublime Appliance Advice
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #1 on: March 22, 2012, 09:58:52 PM »
This ice box has auto defrost. It uses sensors to determine defrost instead of a timer. When defrost has been determined by the board from various inputs, the icebox goes into a pre defrost by doing a chill down to insure that when the defrost occurs the food won't melt. So with the food super chilled the thang then goes into defrost. If them sensors is whack the thang won't act right. keep in mind it still uses a termination thermostat and a conventional heater to do the defrost HOWEVER the defrost time varies this is known as DWELL mode any where from 20 to 40 minutes. After that a post dwell period begins where the compressor is fired up by the board but the inside fans remain off to speed up the cooling process. All of this is monitored by inputs on the mutha board. Those inputs is from sensors placed aboard the machine to monitor the ice box. Ryan has more here:

« Last Edit: March 22, 2012, 10:04:33 PM by JWWebster »
May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline jesse24

  • Technician
  • Member Since: Mar 2012
  • Posts: 1
  • Country: us
  • service tech.
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #2 on: March 22, 2012, 10:05:06 PM »
 Something I have found with these GE boards is the compressor relay solder joint is cracked which can cause intermittent cooling. look close at the joint, you may only see a faint dark ring in the joint but that all it needs to not pass current.

Offline niobrara

  • Technician
  • Member Since: Sep 2009
  • Posts: 1181
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #3 on: March 22, 2012, 10:10:51 PM »
Check the rubber gaskets on the sides of the evap, if rippled and yellow colored heater is sticking on. If not check thermistors, if in range replace control board.

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9523
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #4 on: March 22, 2012, 10:14:16 PM »
Here is the one for your model refrigerator.

Seems to be a popular part for GE refrigerators.

GE Main Control Board Assembly, part number: AP4436216


Hope you find our site helpful.

Offline generaltech1

  • Technician
  • Member Since: Mar 2012
  • Posts: 31
  • Country: us
  • 20 yrs combined appliance and hvacr
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #5 on: March 22, 2012, 11:11:07 PM »
So I was correct, I need the motherboard?

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9523
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #6 on: March 23, 2012, 08:12:59 AM »
Check the rubber gaskets on the sides of the evap, if rippled and yellow colored heater is sticking on. If not check thermistors, if in range replace control board.
Hope you find our site helpful.

Offline generaltech1

  • Technician
  • Member Since: Mar 2012
  • Posts: 31
  • Country: us
  • 20 yrs combined appliance and hvacr
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #7 on: March 23, 2012, 09:18:25 AM »
What should I read off the thermistors if theyre bad?

Offline JWWebster

  • Technician
  • Member Since: Jan 2008
  • Posts: 8781
  • Country: us
  • SublimeMasterJW
    • Buy me a beer through paypal
    • JW's Sublime Appliance Advice
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #8 on: March 23, 2012, 09:24:19 AM »
May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline ApplianceGuru

  • Technician
  • Member Since: Mar 2012
  • Posts: 184
  • Country: us
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #9 on: March 23, 2012, 08:05:41 PM »
Bad solder joints on a board are often the result of a bad board component drawing too much current and/or generating too much heat.  This heats and re-heats the joint, causing it to crack.

It is best to replace a board if you see cracked solder joints.  I tried solder them for the first year or so.  Then I started getting callbacks for the exact same thing.  Lo and behold, the solder was cracked again!!  Not to mention, many boards were burn beyond a solder repair.
Appliance Heating & Air Tech

Offline generaltech1

  • Technician
  • Member Since: Mar 2012
  • Posts: 31
  • Country: us
  • 20 yrs combined appliance and hvacr
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #10 on: March 27, 2012, 10:20:38 PM »
Ok heres what I got from testing the thermistors, Freezer:16.5k ohms, FF: 15.1k ohms, and Evap: 12.2k ohms.  So going by the video in the the thread, I have 2 out of three thermistors bad since they all dont read 16.5k ohms +/- 5%, correct?

Offline Brent@CanBC

  • Technician
  • Member Since: Sep 2008
  • Posts: 114
  • Country: ca
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #11 on: March 28, 2012, 03:40:37 AM »
 O0   Hey my friend, hows things going.   So yes to changing out the two thermisters that are out of the +/- 5%  and that should fix your problem.  Much cheaper than guessing and finding the board is not the problem.  :-\ Brent@CanBC

Offline JWWebster

  • Technician
  • Member Since: Jan 2008
  • Posts: 8781
  • Country: us
  • SublimeMasterJW
    • Buy me a beer through paypal
    • JW's Sublime Appliance Advice
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #12 on: March 28, 2012, 08:31:00 AM »
The themistors also need to be correctly mounted.
May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline generaltech1

  • Technician
  • Member Since: Mar 2012
  • Posts: 31
  • Country: us
  • 20 yrs combined appliance and hvacr
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #13 on: March 29, 2012, 02:16:48 PM »
Compressor amp draw is 0.9 does that sound right?

Offline niobrara

  • Technician
  • Member Since: Sep 2009
  • Posts: 1181
Re: G.E. GTH22SBRARBS Top Mount Refer
« Reply #14 on: March 29, 2012, 10:19:51 PM »
yes

 

Evaporator Fan blade draging on motor mount EV201NXMQ05

Started by Earl Dryer

Replies: 4
Views: 3085
Last post January 04, 2009, 05:42:09 PM
by shieldcracker
GE side by side refer clicking not cooling

Started by psj12

Replies: 4
Views: 1931
Last post May 28, 2009, 11:53:00 AM
by whirlpooltech
KAR-17 KitchenAid Built-In French Door Bottom Mount Refrigerator Service Manual

Started by AJ

Replies: 0
Views: 2011
Last post August 20, 2009, 01:04:31 PM
by AJ
KAR-16 KitchenAid French Door Bottom Mount Refrigerator Service Manual

Started by AJ

Replies: 0
Views: 2181
Last post August 20, 2009, 01:07:58 PM
by AJ
AM-4 Whirlpool Apartment Maintenance Series-Top Mount Refrigerators Service Manual

Started by AJ

Replies: 0
Views: 1220
Last post August 20, 2009, 01:20:33 PM
by AJ
R-86 Whirlpool "F" Model Bottom Mount Refrigerator Service Manual

Started by AJ

Replies: 0
Views: 1747
Last post August 20, 2009, 01:22:18 PM
by AJ