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Errors


Boiler type Hydra Smart RTC-199

Error code Er:70

Cause:

Register, Ram, Rom, I/O Port, AD Abnormal, Important EPROM Data or Safe Data Abnormal

Solution:

This Error Code will go away when the condition is remedied.
If Error happens again:

- Turn power OFF and ON at the main power switch internal to the water heater.
- If the problem persists, replace the main control.