Error code · Dishwasher

Monogram ZBD9900 Dishwasher Code SPEED Light Flashing: inlet valve leaking through

High · stop use, call now

Code: SPEED Light Flashing
Appliance: Dishwasher
Brand: Monogram
Warranty: 30-day workmanship

What SPEED Light Flashing means

The Monogram ZBD9900 top-control dishwasher series, such as the ZBD9900RII, shows a flashing SPEED light for a leaking valve. The control detected water coming in while the inlet valve was supposed to be closed. Any program that was running stops and the drain pump starts to empty the tub. The owner sees the SPEED light flashing and may hear the pump running with no cycle active. The meaning is confirmed for the ZBD9900 series, not for other Monogram dishwashers.

Common causes of SPEED Light Flashing

Inlet valve seat not sealing
Flow meter reading water while idle
Water supply pressure higher than normal
Wiring and control output to the valve

✓ One safe check you can try

1. Turn the water supply valve under the sink to closed. 2. Let the pump finish emptying the tub. 3. Wipe up any water on the floor and check under the sink for drips. 4. Keep the dishwasher unplugged if there was any leak onto the floor. 5. Call us before running another cycle.

! Why to stop there

The owner cannot see whether the valve seat is sealing
We test the valve and the flow meter with the supply on and off
We check for flood damage before the unit goes back into use

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

AUTO + HEAVY Lights FlashingMonogram ZBD9900 Dishwasher Code AUTO + HEAVY Lights Flashing: water will not drain AUTO + SPEED Lights FlashingMonogram ZBD9900 Dishwasher Code AUTO + SPEED Lights Flashing: turbidity sensor reading uncertain START/RESET Light FlashingMonogram ZBD6800 Dishwasher Code START/RESET Light Flashing: cycle canceled, tub draining AUTO Light FlashingMonogram ZBD9900 Dishwasher Code AUTO Light Flashing: water is not heating up HEAVY Light FlashingMonogram ZBD9900 Dishwasher Code HEAVY Light Flashing: too much water inside the tub NORMAL Light FlashingMonogram ZBD9900 Dishwasher Code NORMAL Light Flashing: thermistor reading out of range LIGHT Light FlashingMonogram ZBD9900 Dishwasher Code LIGHT Light Flashing: the tub is not filling RINSE Light FlashingMonogram ZBD9900 Dishwasher Code RINSE Light Flashing: pressure sensor signal reads high

SPEED Light FlashingSPEED Light Flashing questions

Why is the pump running with no cycle?

The control saw water entering with the valve closed, so it pumps the tub out to prevent an overflow. That is the response this series is designed to give.

Should I leave the water supply on?

Close it at the shutoff valve until we have looked at the unit. A valve that leaks through can keep filling the tub whenever the pressure is up.

Can I run a cycle first to check?

We would hold off. A cycle fills the tub through the same valve. Let us confirm that the valve closes properly before you run another load.

Book a visit

Still seeing SPEED Light Flashing?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 955-0955