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Heating  Heating

Brand

Triangle-tube Triangle-tube List all brands

Type:

MARQUIS TWH200 view MARQUIS TWH200 List all types

Error code:

20
List all errors


Error code: 20

Cause of error code 20

High Limit Overheat Switch – Closed is Normal, Open is Fault

Solution for error code 20

Press the Power button to clear the Error Code.
1. Inspect the High Limit Overheat switch. Ensure proper connections.
2. Check High Limit Overheat switch resistance. If resistance is zero, replace the switch.
3. If the problem persists, replace the main control.


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