Heating

Brand

U.S.Boiler Company

U.S.Boiler Company

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Type:

Alpine ALP080B

Alpine ALP080B

Error code:

9
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Error code: 9

Cause of error code 9

DHW sensor fault
Shorted or open Domestic Hot Water (DHW) temperature sensor

Solution for error code 9

• Shorted or mis-wired DHW sensor wiring.
• Defective DHW sensor

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