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Heating  Heating

Brand

U.S.Boiler Company U.S.Boiler Company List all brands

Type:

MPO-IQ189 view MPO-IQ189 List all types

Error code:

ErP59
List all errors


Error code: ErP59

Cause of error code ErP59

AC Line Voltage Error


 

Solution for error code ErP59

Supply voltage is low to the control.
Measure the voltage across screw terminals "2" and "3"
If it's greater than 22VAC and the error does not clear, replace control.
If it's less than 22VAC, review appliance wiring.


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