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SMX II Keypad / NEW OEM Control Display - ASY-423-X00

SMX II AB NEW OEM Keypad Display - ASY-423-X00. Brand New. Fits Cruisair / Dometic SMX II AB keypad display. Completely new designed and manufactured board. Fully compatible with original Cruisair/Dometic power (logic) boards. For Self-Contained and Split Gas Units. For the chiller system SMX II keypad, see here. Questions? Contact us.

Reference: SMXII AB - ASY-423-X00
$238.82
Cover Plate

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NEW SMX II Keypad / Display - ASY-423-X00



dometic SMX II keypad display replacement

Fits the SMX II (2) Control of  Cruisair / Dometic and Micro Air

SMX II Keypad

SMX II COVER PLATES

*Shown here with display cover
  • Completely new designed and manufactured board
  • Cover NOT included 
  • Fully compatible with original Dometic / Cruisair power (logic) boards
  • Directly replaces the popular SMX 2 AB marine A/C keypad display
  • 4-conductor cable with a Molex connector on each end
  • Identical operation as original Dometic SMX II Keypad, wall cutout-compatible

SMXIIAB Diagram

Specifications / Notes 

The SMX II AB Keypad display (ASY-423-X00) has a non-corrosive ABS cover and soft-touch membrane switches. All keys are clearly labeled, making the operation simple. The large, easy-to-read digital display shows set-point or cabin temperature and also is used to give information on operating parameters and fault code warnings. Small LEDs are used to indicate system status.

For normal operation, it is only necessary to turn the system on and select the desired set-point. The user can select cooling only, heating only, or automatic changeover between cooling and heating. Fan speed is automatically controlled, or can be manually set. Factory settings may be changed, with user-programmable commands, permitting the boat-owner to fine-tune the system for personal preferences. Programming modes are accessed by pressing special combinations of keys.

Programmable features on the SMX II Keypad include A/C line voltage calibration, temperature calibration, compressor restart time delay, continuous or intermittent fan operation, low and high fan speed adjustment, compressor response differential, Fahrenheit or Celsius temperature display The system's nonvolatile memory retains all user-programmed settings, even when the power is switched off.

  • 10% OFF

Reviews

S
By Stick 2026-04-20 14:18:05
Just as expected
I was having issues with my existing control display. I have used Citimarine in the past and they we my first stop to replace my display. Great price, great service, just as I expected.
CL
By Captain Lou Cav of RWA Custom Tackle 2026-03-16 20:49:41
SMX II Keypad / NEW OEM Control Display - ASY-423-X00
SMX II Keypad is a perfect plug and play for my vessel. My AC and Heat worked as it should. Citimarine has been helpful with products i needed and questions answered. Great customer service.
JP
By Julian Palmer 2026-02-27 14:58:05
SMXII
Works as expected (so far) and I may want to buy another one as a spare
E
By Eddie 2025-11-12 03:00:56
SMX II Keypad
Key pad work great simple plug in and works great.
D
By David 2025-11-12 02:10:44
SMX II Keypad
Great price and worked perfectly.
S
By Steve 2025-09-25 17:00:11
Replacement Controller
Control panel was perfect replacement for Cruiseair controller. Easy plug and go.
G
By George 2025-09-22 14:07:12
SMX 11 keypad worked perfectly
purchased a new SMX 11 from Citimarine, it was the best price and once installed to worked perfect. good product.
RH
By Reiner Hahn 2025-01-28 07:44:21
Herr
all is perfect. the controller works wichout problems
CM
By Connie Mendenhall 2024-01-25 17:16:35
SMX II Keypad
I purchased the SMX II from Citimarine Store at 4pm, and had it at my doorstep by the next day. Excellent fast and free shipping. Can't be beat!
VP
By Victor Pike 2021-06-17 22:39:24
SMX II
Great control replacement for my 15 year old Cruisair thermostat. Only had to switch the panel and everything worked fine.