I had the same symptoms - was reluctant to buy part since I did not know what the problem was. Bought part - shipped by Fedex - got to me in 1 day regular shipping. Freezer runs like new. I also think it was caused by an electrical fault.
I had reset the control board several times. Finally it quit.
I called chatted with AppliancePartsPros.com and was reassured they would take the part back if it did not fix the problem. That is unheard of in the industry as electrical part are rarely accepted for return. I saved $20 over buying it locally and they would not take the part back once it left the store.
So far this has been a real deal. I will also be using a surge suppressor on the freezer from now on.

What power spikes? Are these from AC mains? Then how many other appliances are you also replacing/repairing? Including the furnace and GFCIs?

Shotgunning is replacing parts on wild speculation. Better is to first know what is causing this. For example, if from external transients, then even digital clocks and TVs may be problematic.

Or is this due to static electric discharges that as so tiny you would not notice them. Static discharges are problematic mostly in rooms well below 40% relative humidity (ie summer and cold winters).

A keypad must connect to two completely different grounds. One is the electronics ground. Other is a chassis ground. If a keypad does not have separate connection to both, then electronics can fail as if by magic. Sometimes the essential chassis ground wire or tab is missing. Most technicians or repairmen have no idea why those two grounds are electrically different. They would measure same on a meter. Visual inspection is necessary. And only happens when one knows of this difference, what to look for, and why seperate grounds exist. If a switch pad chassis ground is missing or used the digital ground, then static electricity causes failure.

Same applies to a controller. Somewhere the two grounds only meet at one point. If a replaced controller is missing a dedicated ground wire or tab, then external transients canl upset electronic operations.

All electronics are so robust that daily transients are routinely made irrelevant. That internal protection is equal or superior to anything that might be plugged in adjacent. A completely different transient that can cause damage or crashes occurs maybe once every seven years. Only external protection from that transient is at the service entrance (ie breaker box) and connected low impednce (ie 'less than 10 feet') to single point earth ground. So that robust protection inside all appliances (is smoke detectors) is not overwhelmed.

That last paragraph discusses transients completely different from above. First part discusses transients that can occur daily or monthly Last paragraph discusses a solution for something that occurs maybe once every so many (ie 7) years. An example of defining the problem long before fixing anything.