What 4C means on your Dacor dishwasher (dacor dishwasher 4c)
Dacor dishwasher 4c is a water-supply check on the Samsung-era Modernist/Heritage 24″ dishwasher: the problem appears when the inlet valve is closed, the household water supply has been suspended, or the inlet line itself is frozen or clogged. This exact code string, `4C`, is an exact match to Samsung’s own published dishwasher error code, which is some of the clearest evidence in this research that the Modernist Dacor dishwasher runs on Samsung engineering underneath its own branding. Unlike lc, this problem is about water not arriving rather than water escaping, so it is generally a lower-risk condition to leave overnight while it is diagnosed.
Symptoms
Read these against your dishwasher: they are what tells 4C apart from the other things that can go wrong on a Dacor dishwasher.
- 4C appears on the display shortly after a cycle begins, before any wash sounds start.
- No water is heard entering the tub when the cycle should be filling.
- The problem can follow a period when the home’s main water supply was shut off for other work.
- In cold weather, the problem may follow a period when an unheated space near the supply line dropped below freezing.
- The water shutoff valve behind or under the dishwasher may be found partially closed.
Common causes
There is more than one road to 4C on a Dacor dishwasher, and the list below walks them in the order a technician would on your dishwasher.
- Closed or partially closed water shutoff valve — the valve feeding the dishwasher is not fully open.
- Suspended household water supply — the main supply to the home has been shut off, intentionally or otherwise.
- Frozen inlet line — in a cold installation location, the line supplying the dishwasher has frozen.
- Clogged inlet line or valve — sediment or debris is restricting water flow into the unit.
- Failed inlet valve — the valve is not opening electrically even with a normal water supply present.
Troubleshooting steps you can try
These checks cost you nothing on a dishwasher and often end the problem there; anything harder on a Dacor dishwasher needs a technician.
- Check the water shutoff valve behind or under the dishwasher and confirm it is fully open.
- Confirm the household water supply is on by checking another fixture, such as a kitchen faucet.
- If the installation area may have dropped below freezing, allow time for any frozen line to thaw before retrying.
- Power-cycle the dishwasher at the breaker and start a fresh cycle once water supply is confirmed.
- Avoid repeated cycle attempts while 4c persists, since it will not clear without water actually reaching the unit.
Parts a technician may replace
On a dishwasher in this condition the likely candidates are the water inlet valve, supply line, water shutoff valve, and main pcb. Each is tested on the dishwasher before it is replaced, and the part is matched to your dishwasher from its model and serial number.
When to call a technician
If the supply valve is open and other fixtures in the home have normal water pressure, the inlet valve on the dishwasher itself needs testing by a technician. At Medium severity the dishwasher is not in danger, though a 4C that keeps coming back on a dishwasher is telling you something. Nobody here works for Dacor; we are an independent service, and the work we do on your dishwasher is warranted for 30 days.
Related help and Dacor resources
If the checks above did not clear the 4C condition, book a technician for the dishwasher. Our dishwasher problem index covers the neighboring problems, and www.dacor.com carries the dishwasher spec.
