I have a Whirlpool Side-by-side refrigerator that is only a few years old and I am now experience a problem where the cooling coil valve that enters the refrigerator side is not opening consistently. (the freezer is perfect ice cold). I have found out the problem can be overcome by simply pulling the power for a few minutes. Upon restart it works for some period then randomly stops. In speaking with a tech they claim this issue is likely due to an issue on the main control board. So I decided to pull it and I thought one cap looked bad so I replaced all 4... I thought I had solved it but ~24 hours later, it exhibited the same intermittent symptoms. Anyone have a clue what other part on this board might be the issue???
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Need help troubleshooting a Whirpool control board (it's not the caps!)
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actually agree with you. I replaced c58 + the other 3 caps... (picture is before my repair).... still having the issue..... If it were a relay... I would assume that would just be dead and unrecoverable with my power off power on trick... what do you think... I am certainly not an expert however so not positive about my statement on that point, just my understanding how the part works.
Last edited by UL161; 12-13-2023, 12:35 AM.
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Originally posted by UL161 View PostDefinitely not a valve issue.. it is electronic
I have worked on this type of board before on another refrigerator and it was a power supply problem so I would look for the power supply board and see if it powering ON or notLast edited by sam_sam_sam; 12-26-2023, 07:53 PM.9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
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sam_sam_sam.... Thanks for this suggestion.. I am actually thinking that the power supply board might be causing the issue to some extend too. It is actually on a separate board next to this one... (see this link on ebay... Board is basically this model. ) I think one 10uF Cap on this board looks a bit suspect... Maybe I should just try to reCAP the power supply board too. What do you think??
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Originally posted by stj View PostOMFG!
get that board out and inspect it,
the one on the ebay link had so many cracked solder joints it was hard to believe!
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
Comment
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Originally posted by UL161 View Postsam_sam_sam.... Thanks for this suggestion.. I am actually thinking that the power supply board might be causing the issue to some extend too. It is actually on a separate board next to this one... (see this link on ebay... Board is basically this model. ) I think one 10uF Cap on this board looks a bit suspect... Maybe I should just try to reCAP the power supply board too. What do you think??
You need to look at pin connectors on this board for bad-rings around that look like the solder separation from the pins to board because or gaps between the pins and solder joints to the board Whirlpool has had some very serious issues with this in the past I have repaired a few there board in the past
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
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Originally posted by UL161 View Post
What is the part number of the device that is mounted on the heat sink
Because iI think I see the switching power supply regulator because if I see it right it has 5 or 6 pins
By the way the capacitors that KZE or KY are a very good series in caps I would not necessarily replace them at this point but if there is a capacitor near the switching power supply regulator I would definitely recommend changing it especially if the UF value is less than 100uf it might be 10uf, 22uf, 33uf, 47ufLast edited by sam_sam_sam; 12-28-2023, 08:23 PM.9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *
These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board
All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
Comment
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