Troubleshooting

26.1 KH readings fluctuating

This is the most reported symptom, and it almost always has one of these causes. Work through them in order:

#	Check	Action
1	Aeration in both chambers	Set the side valves for strong, equivalent airflow, with at least 5 mm of foam. If the air pump is weak, clean the air system or replace the pump
2	Probe age and health	Over 12 months in use, or Health below 55%, replace the probe
3	Chamber cleanliness	Empty, open the lid, clean, refill and recalibrate
4	Aquarium chemistry	Borate, phosphate, silicate or organic matter above normal affect the measurement
5	Stray voltage in the water	Check for current leaking from aquarium equipment
6	Lanthanum in use	Suspend measurements during treatment and for 6 to 12 hours afterwards
7	Hose position	Move it away from detritus, the skimmer and the dosing point
8	Still fluctuating	Contact support: we can assess the reading circuit's statistics remotely

Symptom	Solution
Software updates do not complete	Format or replace the memory card
Graphs do not appear	Format or replace the memory card
System Status shows SD: Not Detected	Format or replace the memory card
Noise during aeration	Check the air pump's mounting — use silicone glue or double-sided tape
Noise from the dosing pumps	Clean or replace the internal tubing
Traces of water in a dosing pump	Replace that pump's internal tubing immediately
Internal reservoir level low	Usually a consequence of power cuts during measurements. Empty completely, refill and recalibrate. If it persists, a level sensor may have a sealing fault — contact support
Equipment restarting on its own	Check the power supply and the memory card
Trouble reaching it through the cloud or app	Check Wi-Fi signal quality and internet access under System → System Status → Network
Daily correction limit warning, always	Not a fault. Your main replenishment is undersized — increase the balling dose or the reactor rate (Chapter 16)
Co2 Port always at 100% and KH falling	The reactor is not delivering: CO2 empty, media exhausted, valve blocked or too few bubbles (Chapter 17)