Restore proper cycling on your DD400
This replacement timer module restores the DD400’s defrost/thermostat timing functions so your desiccant unit dries reliably. It’s the factory part listed by Ebac for DD400 (10500SU-US, 220V/60Hz). Swap a failed timer to correct short-cycling, no-heat, or no-defrost issues.
BENEFITS
- Fits: Ebac DD400 (US 220V/60Hz).
- Restores heater/regen timing and control logic when the original PCB fails.
- Plug-to-harness design for straightforward service (no rewiring of the machine).
In the Box & Installation
- (1) Control Board P/N 1619600 — board only.
Installation notes
- Disconnect power and lock out/tag out.
- Remove top cover; document wiring/connector orientation.
- Swap board; re-seat harnesses; check ground; restore power.
- Perform functional checks (fans, staged heaters, indicator LEDs, optional humidistat).
FAQs
I was told to order “1619600 timer.” Is that correct?
No, Ebac’s EU parts list shows 1619600 = Control Board. The timer for the DD400 US build is 1619522. Match to your model code and voltage.
Will 1619600 fit all DD400 units?
It’s the listed control board in DD400 spare parts lists, but newer manuals show 1619522 as the controller. Check your unit’s serial/revision or send us a photo of your existing PCB label and we’ll confirm the correct part.
Will this fit the DD400-E or EU 230V units?
The EU parts list differs (control logic under 1619600). Contact us with your serial/model for the correct EU part.
Can you help me confirm fit?
Yes, send a photo of your rating plate and the existing module, and we’ll cross-check against the latest Ebac sheet.
Need help now?
Call 1-800-237-9199, start a live chat, request a call back, or contact us
