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Errors


Boiler type CH-180 ASME

Error code E030

Cause:

Exhaust Overheat: exhaust high limit switch shuts down the unit when the flue temperature exceed 149°F (65°C).

Solution:

Turn OFF the system for at least 30 minutes then restart.
Clean the DHW cold water inlet filter.
Check the heat exchanger; remove and clean with a cleaning solution.