Trouble Shooting - Vision TZ58/1800-10 Installation, Operation And Maintenance Manual

 Measure the current into the element (1.5kW ± 6.5A)
Switch off bypass.

Purging the tank
If the water quality is poor, it is recommended that the water in the tank is purged every 6 months to
a year to reduce the concentration of salts.
Confirm that no hot water will be required for a few hours.

 Shut off the water supply to the geyser.
 Fit hose to the drain valve and lead water to a drain point.
Open the drain valve.

 When the tank is completely drained open the supply valve for a short period to wash out the
tank.
Close the drain valve.

Note: if the tubes are in the sun for a significant period without filling the system, then follow the
procedure s for filling given on page 20.

Trouble Shooting

No water
 Test a cold water tap to see that there is supply water.
Check that the system supply valve is on.

Check that there is water at the system supply valve.

 Check to see that the main supply valve is on.
Check that the municipal water supply is available,

Check to see if the PRV is not blocked.

No hot water
Check that the collectors are not shaded between 9am and 3pm every day.

 Check that you are not using excessive water.
 Check that the main tank is full of water.
Check the electrical supply to the element is working. (Check the main DB Board, timer, isolator,

thermostat and element.)
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Issue 2.0 Mar 2013
Vision Solar Systems - 100 L Gravity Fed Type