Carel AL28 Error Code
AL29 Circuit 1 high pressure (from probe) Circuit 2 high pressure (from probe) C
Source: 030221471.pdf
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relay involved compact split EO active ON probe 1 error= control automatic √ √ E
Probe S2 fault OFF OFF automatic unchanged unchanged unchanged changed un- YES N
Probe S3 fault OFF OFF automatic unchanged unchanged unchanged changed YES NO ch