Chosen Solution
Here is the issue and driving me nuts! I have a GE cafe dishwasher and dishes come out dirty. The thing can run for 4 hours and still dirty. Had first repairman tell me that its not getting hot water. I have a tankless hot water system (which is on the roof). My neighbors all have the same dishwasher and tankless heater and have no issue. I had GE repairman come also and he tested the water during cycles. The first few it was colder than it should be and heated up later cycles but no where near what the faucet right next to it is getting (I think faucet gets to 105 or so but dishwasher had 67 first cycle and eventually did get to 95). He now thinks something else must be going on and may not be hot water given he was able to get it to 95 degrees. I have no idea what’s causing this. I have spent $200 already calling repair guys and no where nearer a solution. Anyone have ideas on why it may not be getting hot water or what’s really going on. Have read different things online but don’t know for sure and not sure why neighbors don’t seem to have that issue if its tankless water heater. Help!
A temperature of 95f is not hot enough. The dishwasher detergent needs the water temperature to be at least 120f for the chemicals to work properly. It even tells you on the detergent box. Running the kitchen sink hot water until the water is hot before you start your dishwasher will insure that the first fill is hot. If your only getting 102f water then you need to adjust the temperature in your hot water heater to at least 120f. This is a recommended setting for hot water heaters. You won’t be scalded at 120*. There are several reasons why a dishwasher won’t clean dishes but the first check when troubleshooting is verifying that the water is hot enough for the detergent to do it’s job. Your water temperature is way too low to clean the dishes. Adjust your water heater temperature and you’ll notice a huge difference.
Many dishwashers just do not work with tankless water heaters. I’ll know more when I have your exact model. Thanks for the phone call but this needs some study to really give you a good answer. Check with a couple of your neighbors are see if they have the same washer brand and model that you do. I also want to get @ladytech in on this one as she is the real expert.
We just bought the Café™ Dishwasher Drawer CDD420P2TS1, and the dishes are not coming out clean. I’ve tried all cycle types and varying drying settings. I ensured I did not overload the dishes and did a pre-rinse in the sink before loading. I’ve tried it with powder detergent (Cascade) and also tried it with the Cascade platinum pods in the silverware rack. I wonder if it is the water temperature due to the fact we have a tankless water heater that seems to take about 2 minutes to get hot water to the kitchen sink (which is next to the dishwasher). Thoughts?
