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Errors


Boiler type Hydra Smart RT-199

Error code Er:16

Cause:

Operating Temperature Sensor or DHW Sensor detects Water Temperature Greater than 199ºF (93ºC)

Solution:

This Error Code will go away when the DHW temperature decreases. |
If Error happens again:

- Check if dip switch High Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.
- Check if DHW pipe is blocked. Ensure there is enough water flowing to the water heater.
- Check DHW sensor at DHW outlet. If resistance is zero, replace the sensor.
- Check Operating Temperature sensor at the heat exchanger. If resistance is zero, replace the sensor.
- If the problem persists, replace the main control.