Staff Answer
Sep 26, 2026 - 07:43 AM
No. LI OP means the high-temperature limit switch on the boiler has opened. That's a safety shutdown, and a new board won't fix the cause. It usually means the boiler overheated because the cooling unit is failing. Look for yellow residue or an ammonia smell. See our LI OP article. If the cooling unit is bad, we carry the Nordic Cooling Unit 3381A. The N841 is discontinued, and Norcold's replacement is the Norcold N8X. See our Norcold replacement guide.
If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.
