5/18/21 work day

1st job:

Had a call from a customer in regards to their samsung dishwasher, they say water keeps flowing inside the dishwasher even when it is not in use, they also complained about the dishes not cleaning properly.

Upon my arrival I tested the voltage of the diverter motor, and the circulation motor from the main control board, both were at 110 and 112 volts respectively, 120 volts is the measurement required to run optimally give or take a few numbers.

So based on that I knew the motor was not the culprit, upon further inspection it seems one of the spray arms was broken which could definitely contribute to this factor, if for what ever reason that wasn’t the culprit the only thing to take a look at afterward would be to replace the main board.

In regards to water flowing inside a non operational dishwasher, I heard a constant water flow comingfrom the water line, this is not supposed to be while the dishwasher was standing, the only culprit for this is a water valve stuck on open, when a water valve is stuck on open all one would have to do is replace it to fix water flowing inside.

 

2nd job:

On this call there was a complaint on the food beginning to defrost and not maintaining temperature in regards to a standalone freezer. Upon arrival I noticed a few things unique about this freezer model, the evaporator coils where integrated into the shelves and were not enclosed as typical per design.

These evaporator coils also utilized a defrosting mechanism that did not utilize a heater which I am not accustomed to, there was no fan inside the freezer box itself but somewhere underneath the machine.

As you can see in these photos you can see the evaporator coil integrated into the shelves and connected to the freon lines…

when I arrived there was frost build up on the top two shelves because of lack of air flow, they were extremely packed, this customer did not notice an issue with the cooling until he had left the freezer door open for a few hours by mistake.

if you have frozen items packed tightly in a freezer it can maintain temperature for a while even if the cooling mechanism isn’t working sometimes even weeks or months I have seen.

I had determined in this case the cause of failure was a sealed system (compressor, freon lines) issue by observing the evaporator coil. I completely defrosted it and then let the machine run normally for roughly a half our after.

No ice pattern formed on these coils, only maybe 3 inches of frost covered on the 2nd coil from the top, every other coil was dry this was either due to an inefficient compressor a leak or restriction in the freon lines.

The ice on these coils is what provides the cooling for all refrigeration models, without it there can be no cooling in these machines.

I had advised the customer that these repairs are costly usually between 600 – 1000 or more and that even if done there is a possibility the issue will return,  being that a comparable model is only 600 – 800 dollars, I advised him to replace, I told him if he was particularly attached to this machine he could call an HVAC company to service him.

He opted to replace and I collected my service fee.

Case closed.