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Errors


Boiler type QP130N

Error code E05

Cause:

1. Control unit error 

2. The error persists after reset 

Solution:

1. Check 120V stability. If voltage is deviating more between +10% and -15% the electrical power supply needs to stabilised.

2. Software error control unit. Replace the control unit. Remove the E-Prom from the defective control unit and place it onto the new control unit .The controller will automatically load the program into the new control unit.