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Limit Circuit Closed - Is this serious?
We're talking a Weil-Mclain HE II. My 1013-100 control was acting up so I updated to a 1013-200. I think I have done it correctly, but the limit circuit light is blinking and I'm not even sure what that means. My boiler has been off for two days. We are surviving by using our mini-splits.
Here is a fascinating thing. For reasons I won't bore you with, I have two 1013-200 controls. One is a used Gold GV, the other is generic(?). When I use the Gold GV one, the boiler starts to light but stops. But when I used the "generic" one, it seems to work fine - except for the limit circuit closed situation. As I type this, the boiler is working.
What is going on? Is my boiler safe? How can I remedy this limit circuit closed light? Thanks in advance for any help.
- A lost dad