Whirlpool HAH-7000BB-1 AS Induction Hob: No Start, Dark Display After Power Interruptions

The Whirlpool HAH-7000BB-1 AS induction hob does not start, dark.
The user claims that the mains voltage was turned off and after a while they gave it three times in short intervals,
it was permanently lifted only on the fourth attempt, since then the cooker has not worked.
There are two electronics boards in the oven with the symbol Whirlpool DCN-248 w10672240,
10, 12 and 19V come out of the power supply, 12V goes to the controller board, 5V to the touchpad.
The power supplies on the hobs work the same, but none of the fields can be started and the oven does not report any error,
all fuses and other elements are in working order, no visible damage, and the network was not used during the failure.
There's been a bug in the software :?:



[url=https://obrazki.elektroda.pl/1631741200_1565958728.jpg] [/url]

2019-08-16
The board returned from an authorized service, the touchpad was replaced
(no strength module has been replaced - none), - no changes.
The customer picked up the disc from the service, according to the service - a defective series.

Hello, I have a similar board, the left fields work properly and the right ones display error F, right side control module "whirpool W10672242 .A HAH-7000BP A1S". How to fix it, and maybe someone has a working one. Maybe it's not the fault of the inductor module but the control board? help

wodnik_55 wrote:

Hello, I have a similar board, the left fields work properly and the right ones display error F, right side control module "whirpool W10672242 .A HAH-7000BP A1S". How to fix it, and maybe someone has a working one. Maybe it's not the fault of the inductor module but the control board? help

The question is whether the problem is solved because I have the same board and today after the storm the C81 error showed up - which means too high temperature of the electronics and the fan works at full power. After the initial inspection, nothing showed, I disconnected the left side from the voltage and the right side works for now.

Here are the temperature sensors for the executive transistors and the Graetz bridge, or rather the temperature of the electronics.

I disconnected the one from the damaged side and there is no difference but I will order a new one and try to replace it.

Sweep left to right you will know if the control module or the left or right modules went. As for the left and right modules, there are two power modules for the burners on each, and in total there are 4 identical power modules for the burners, two on each board.

What is often damaged is the GW39NC60VD power IGBT transistors usually short circuit, sometimes one, sometimes both. The worst is when the gate control line fails. In this line there are: SMD resistors to be checked, they usually burn out or short circuit (go down in value), plus transistors 2.x> and W2F (3n) and the L6388ED driver.

Hello,
I have the same cooker model and yesterday after intensive use (all fields were used all day) the cooker almost caught fire, the housing began to melt, and smoke was emitted, there is a drawer with cutlery under the cooker, they were so hot that you could not touch them.
After turning off the power, cooling down, I opened the cooker to check for damage, there were no visible melts. The oven works normally without raising any errors.
I suppose that the temperature sensor which is indicated in the above-mentioned post did not work, unfortunately there is no description on this element.
May I ask for help what exactly is this element and how can I check it, possibly a symbol for replacement?
Unless there may be another reason for this behavior, not the sensor but the system that interprets the data from the sensor?

Thanks in advance, Tom.

tomasz.orkisz wrote:

Unless there might be some other reason for this behavior

This is a rather normal phenomenon when the disc is incorrectly installed.
The heat of losses is precipitated on the heat sinks, where it is not small with four working fields.
The heatsink has nowhere to blow hot air or take in cold air. Hot air circulates in a closed circuit
heating everything up even more.

I'll add to this thread because I have a similar album:
HAH-7000BB-1A Assy Rev:1.4 T:85deg. Right boxes work fine
on the left there is an error F47 (phase missing). After visual inspection and checking, two voltage stabilizers for 5V and 15V were released, but I still have a short to ground on the 5V power supply. The trail leads to a small additional tile (module). Does anyone have any experience of what's most likely to happen in them? Because you would have to remove individual scakas one by one. Or maybe the game is not worth the candle and you should get the whole module and are they available somewhere?

Most often, smd capacitors - check under a magnifying glass if they are not cracked, and if you do not find them, give about 2V and limit the current to the power of the stabilizer and Isopropanol if you do not have an infrared camera and check what is overheating.

Approx. Yes, I haven't checked the capacitors yet.
If only it were them
Thanks for the reminder about the isopropanol method.

...
Unfortunately, the R5F71252V N50 processor is dead.
After removing from the board, the short circuit on the 5V line disappeared.
I guess there will be a problem. Does anyone know of any closer sources for these layouts?

It so happens that I have the same induction hob as in the above-mentioned topic. The right side doesn't work and the left side works. After starting, there is no vessel on the right side, it displays a sign that there is no vessel, and this is normal. However, if I put the dish on it, it will start for a short time and the F2 and F5 error is displayed alternately, and the fan motor does not run normally, only humming as if it had too little voltage. Can anyone help me with this and point me to what I should check? Thank you very much in advance.
I corrected TONI_2003

wisiorek50 wrote:

It so happens that I have the same induction hob as in the above-mentioned topic.

You definitely don't have one! HAH-7000BB-1 AS is a version of the induction module! Error F2 and F5 do not exist :)

Ps. You probably have F25 - a problem with the fan xD

Hello. If anything, I have a damaged disc - the jar fell, but the electronics are in working order. More on priv.