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US Boiler ES2 Error 32

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Hans64
Hans64 Member Posts: 1
in THE MAIN WALL
Found in the manual that Error 32 is a “Temperature sensor or interface failure (open or short connection, increased connection resistance, dual sensor mismatch) or control hardware failure“.
That’s quite a range of possibilities. Any ideas what this usually is? How do I please troubleshoot this?
I would appreciate any insights. The system is running, but doesn’t reach set point temperature.
Thank you

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  • Boon
    Boon Member Posts: 260
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    Did you do the next steps in the manual?

    - Check sensor is securely attached to control P7 connector.
    - Check sensor wire is not damaged.
    - If secure and in good condition, replace sensor.
    - If problem persists, replace control.
    DIY'er ... ripped out a perfectly good forced-air furnace and replaced it with hot water & radiators.

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