Written by
Elena Navarro Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeF3 / F-3
ApplianceDishwasher
Quick answer
F3 (F-3) on older Dacor EDW/IDW dishwashers is a heater fault: the water is not getting warmer during wash and rinse.
Model compatibility: Dacor reuses codes across series and model years, so F3 / F-3 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Heater fault: no water temperature rise detected during wash and rinse cycles.
On Dacor EDW and IDW 24-inch dishwashers from the Epicure and Distinctive lines, F3 (also written F-3) is the heater fault. The controller expects the water to get warmer during the wash and rinse cycles, and it has not detected a temperature rise.
How F3 appears
The display list for this older series shows F-3 with the label ELECTRICAL. The same list covers the other F-codes on these machines, so check that the digit after the F is a 3 before reading anything into it.
What the manual says to do
The manual lists no owner-level fix for this code. Heater testing is done by a technician, who runs the dishwasher’s manual test mode and watches the heater step. If F3 keeps returning, disconnect power at the breaker and book a visit.
Codes on the same display list
F4 is the drain pump, F2 is the circulation pump, and F1 is the inlet valve. They are easy to confuse because they sit side by side in the list.
Dacor dishwasher service in Los Angeles
Dacor dishwasher showing F3 in Los Angeles? Call (310) 742-1907 or open the dishwasher repair page. It helps to have the code, the model number and whatever you have already tried at hand.
Source: EDW/IDW Dishwasher Service Manual (SM_EDW_20110922), Fault Code/Diagnosis
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Dacor appliance?
Book a specialist visit for a clear estimate and approval before any repair.
