The short answer
On the CDT line, the most common reason a dishwasher is not starting is power at the circuit, the switch or the outlet. On this page that cause is ranked ahead of door latch or door switch not making, which is where the order departs from the brand-generic article above; the ranking below says what about this platform moved it. Three of the four causes below are owner-checkable with no tools worth naming, and the last of them is a service call.
What you see on the CDT line
- A delay indicator lit that nobody set — A delayed start looks exactly like a broken machine until you notice the indicator.
- It starts only if the door is pressed hard — That is the latch or the door switch rather than the control.
- No lights and no sound at all — The machine reads as unpowered, and the supply is the first thing to prove.
- NEAR MISS — it runs and water stays in the base — That is the drainage page.
Causes, most likely first on the CDT line
- Power at the circuit, the switch or the outlet — A dishwasher is commonly wired through a switch under the sink, often beside the disposer switch. Knocked off by hand or tripped at the panel, it leaves a machine with no lights and nothing wrong with it. It is outside the machine, free to check, and catches people out constantly. Seven models sit under this family key. They are close enough relatives that a fault found on one is worth suspecting on the others.
- Door latch or door switch not making — The latch has to close a switch before the machine will do anything, and the catch takes a push every time the door shuts. Worn, it holds the door and misses the switch, which reads from outside as a dead machine. The machine gives no clue that it is waiting on the door.
- Water supply closed or inlet blocked — The supply valve under the sink is closed during other plumbing work and not always reopened. The machine then holds silently at its first step waiting for a fill that never arrives. It belongs on the list because a machine waiting for water looks exactly like a machine that has died.
- Control board or touch panel — Moisture creeps into the edge of a touch panel and the membrane stops registering, or a relay on the board fails closed. Lights without action is the shared symptom. It ranks below the simple causes because it needs a meter, and because a board is what gets replaced when nobody checked the latch.
Check in this order, and why
- First: Check the breaker and any switch under the sink — A standard household branch circuit is 15 A or 20 A at 120 V, and this machine will be on one of them. It comes first because it is the cheapest of the four to exclude and because everything below it is harder to read while it is unresolved.
- Second: Close the door firmly and listen for the latch — Press the door in while starting the cycle; if it runs, the latch needs attention.
- Third: Check the supply valve under the sink is open — Follow the small line from the valve to the machine and look for a kink.
- Last: Do all the buttons respond? — Dead or erratic buttons point at the panel rather than the latch.
Before you open anything
Safety
Switch off at the breaker before the toe panel or the door panel comes off, and treat the capacitor as charged. A standard household branch circuit is 15 A or 20 A at 120 V, and the terminal block under this machine sits beside plumbing — dry the area first. Never wedge the door latch closed to make a cycle run.
Models in the CDT family
Reference| Model number | Family key |
|---|---|
| CDT805**N*** | cafe:dishwasher:cdt |
| CDT828**V*** | cafe:dishwasher:cdt |
| CDT84***N*** | cafe:dishwasher:cdt |
| CDT858**V*** | cafe:dishwasher:cdt |
| CDT858**Z*** | cafe:dishwasher:cdt |
| CDT87***N*** | cafe:dishwasher:cdt |
| CDT888**V*** | cafe:dishwasher:cdt |
When to call a technician
Owner work here is the door, the switches and the valve. Anything behind the toe panel is a technician job, and a machine that hums without running should be switched off rather than retried.
