Jenn-Air Dishwasher Error Code E:33

E:33 means the heat pump has detected a water level that is too low in the pump sump. This can be caused by a leaky heat exchanger valve that is not retaining water properly, or by cookware loaded upside down that is trapping water and reducing the available sump volume. Low supply voltage can also trigger this code without any fault in the appliance itself.

You should not continue running the dishwasher while E:33 is active. A low water level in the pump sump can cause the heat pump and associated components to run without adequate water, which risks overheating and further damage. Address the cause of the fault before resuming normal use.

If the fix is simply rearranging the dish rack or addressing a voltage issue, there is no parts cost involved. If the heat exchanger valve requires replacement, repair costs including parts and labor typically range from $150 to $350 depending on your location and the specific valve required. Diagnosing the fault accurately before ordering parts will help avoid unnecessary expenses.

Start by checking the dish rack for overturned bowls, pans, or containers that may be collecting water. Rearrange the load so all items drain downward, then run a new cycle to see if the error clears. If the code returns, check your home's supply voltage and inspect the heat exchanger valve for leaks or seal failure. A faulty valve will need to be replaced to resolve the fault.

A reset may temporarily clear the E:33 code, but if the underlying cause such as a leaky heat exchanger valve or an improperly loaded rack is not corrected, the error will return during the next cycle. Fix the root cause first, then reset the appliance for the change to hold.