Exterior Components› Body Panels and Components
Dometic USA
BOARD SZ LCD RELAY-C/F/HS
SKU: D018 3313190.021
Description
MIA's Description
This is a genuine OEM replacement part. It is compatible with rooftop AC systems and operates on 12V DC. If your RV's AC is not responding to the thermostat or cycling erratically, this control board may be the solution.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Dometic USA |
| Part Number | D018 3313190.021 |
Videos
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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