Programming Instructions for the HV Control Board used in some Whirlpool-built Bottom Mount Refrigerators
Here's what the HV board looks like: Part number: AP4568436
When you replace this HV control board, you will need to program it to work in your particular model. If you don't program the new HV board, you'll get the error code PEO 000 in the display.
The new control Board may or may not come with programming instructions. In case your replacement board does not, here are the programming instructions you'll need to get things running.
NOTE: The Program Code is located on the Serial Plate on this unit after the word "Code."
1. Press and hold the Door Alarm Keypad .
2. Press and hold Freezer Temperature Down Keypad within 3 seconds .
3. Release the Door Alarm Keypad and wait 3 seconds.
4. The control will display PE to indicate the programming mode.
5. Entry is confirmed by pressing the Freezer Temperature Down Keypad once more.
6. The control will display the current Program CODE. This value should be validated with the Program CODE printed on the unit serial plate. NOTE: If the Program CODE is correct, the Programming Mode is exited by pressing Door Alarm Keypad for 3 seconds.
7. Press the Refrigerator Temperature Up Keypad or Refrigerator Down Keypad to change the digit value with each key press.
8. The decimal point indicates the selected digit. Press the Freezer Temperature Up Keypad to select the next digit.
9. Once the desired Program CODE is entered, press and hold the Freezer Temperature Down Keypad until the Program CODE begins flashing indicating it has been saved. NOTE: If you attempt to enter an invalid Program CODE the control will not save the new code, but will beep. (The unit will NOT run with a Program CODE of 0000).
Once the Program CODE has been saved the Programming Mode is exited by pressing any key. If the new code is incorrect this process should be repeated. The Programming mode can be exited at any time by pressing Door Alarm key for 3 seconds or will exit if unattended for four minutes.
Relax, compadre, cuz that's the whole point of this blog post: to help you explain to your customer the importance of temperature measurement in a refrigerator simply and clearly and to provide them the means by which to do it.
Begin by explaining to your customer that temperature is, in fact, the single most important number that tells the story about the health of that box. Further, home refrigerators are very sensitive to changes in conditions and usage: changes in ambient temperature throughout the seasons; frequency and duration of door openings; condition of the door gaskets and their ability to seal out warm, humid outside air; the temperature of foods placed inside the compartments; amount of pet fur on the condenser, etc.
Next, I explain to the customer that unless their refrigerator controls actually measure and display the temperatures inside the compartments, the indexing numbers provided on the controls are simply a way of noting the relative changes that they need to make to the control dials in order to achieve the target temperatures inside the compartments. And how are they going to know what those target temperatures are unless they are actually measuring the temperatures inside the compartments?
This is where refrigerator thermometers come into play. I buy these refrigerator thermometers by the dozen and stock them in The Guru Mobile: https://www.amazon.c...HKPEBS5M25BG72
I tell my customers that they should have one of these thermometers in each compartment of their refrigerator box: fresh food and freezer. Here's how I instruct them on using the thermometers and setting their refrigerator controls according to temperature measurements.
For normal, day-to-day tracking of the temperature, place the thermometer in the central area of the compartment (not on the door). Ideally you want it to be easily visible whenever you open the door so that you can glance at the display regularly. Make it a habit to look at the thermometer at least once a day, perhaps in the morning the first time you open the door. The needle should be in the purple “REF.” section, approximately 33 to 40 degrees.
Be aware that opening the door of the fridge, particularly if the ambient conditions are warm and/or humid, can raise the temperature quite a bit in the compartment. If you notice that the temperature is above 40, and the door has been opened recently, leave the door closed for awhile then check the temperature again.
If the temperature is consistently above 40 by a few degrees, you should adjust the cold controls of your refrigerator to see if you can get it down into the 30’s. (See your fridge’s instruction manual for help on this - how to adjust the controls can vary among different brands and models.) Any adjustment to the controls can take several hours or overnight for the temperatures to settle to their new level.
Place the thermometer in a central location in your freezer and monitor the temperatures as described above.
Although frozen food is safe at any temperature below 32 degrees (the blue zone), a normally-operating freezer should be between 0 and 5 degrees. If you see temperatures consistently above that, try adjusting the freezer’s control to a colder setting.
If their temperatures remain above-normal despite adjusting the refrigerator’s controls, I instruct them to call me for service as soon as possible to avoid food spoilage and loss.
Brother Durham has put together a short list of some very helpful tips and tricks to keep tucked into one of those cerebral creases when you're tracking down a problem in a Samsung refrigerator. Let us attend:
When you initiate a diagnostic mode or unplug a Samsung, you effectively clear any outstanding error code. More than likely it will do the same thing once it finds the error again. Prepare your customers for this eventuality and have them observe any flashing Led segments on the display
Remember the following Samsung help tips:
1) their mainboards rarely ever fail
2) A shorted or open thermistor will shut down the fridge and lock the display. The fridge may have no operation or operate in emergency mode. Not unusual after a power failure... look for a blinking segment on the display. Other errors will not lock the display. Out of calibration thermistors will not show up as an error.
3) check for displayed diagnostic code before unplugging fridge or entering diagnostic mode. Unplugging the fridge starts a self diagnosis but will take 5 hours for any error code to reappear so always manually diagnose fridge before unplugging.
Buy parts for your Samsung refrigerator here: http://www.repaircli...rigerator-Parts
All come with a 365-day, no-hassle Return Policy: http://www.repaircli...r/Return-Policy
Source: RS2555SL Dead after regional power failure. Now only lights working.
In the KSSC48QM and earlier versions "SHOW ROOM" mode was fairly obvious because the user interface display just cycles the display through all it's indicators - and, of course, the compressor never comes on.
In the KSSC48QT and brethren ... not so obvious! "SHOW ROOM" mode is entered and exited by holding "MAX COOL" and "POWER" for a few seconds. Everything acts normal except:
1. Compressor never turns on.
2. You CANNOT enter diagnostic mode.
Don't replace this $9000 refrigerator because the control board is NLA and it happens to be programmed for "SHOWROOM" mode!!!!
We're seeing a lot of these controls come thru the shop these days, almost always with real problems, but once in a while the re-installer gets stumped by inadvertently entering showroom mode.
Happy New Year to y'all!
Source: Kitchenaid Built-in Fridge - Remember SHOW ROOM mode
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