The iStore carries out automatic defrost cycles during very cold weather conditions to prevent ice build up. During the defrost cycle a fog or mist may be witnessed coming from the iStore. There is no cause for concern should this be seen.

Air and sediment may enter the hot water pipes depending on whether the local water authority was carrying out major works or some other minor maintenance on your home plumbing system.

Simply run any hot water tap until it flows normally.

To comply with the Australian storage hot water regulations all manufacturers must comply with anti-legionnaires protection within their product.

Vacation mode was previously used as a tool if you do not wish to wait for a tank reheat when you return from vacation.

Extensive testing and real life operation has shown that utilizing the compressor heating system as the method to achieve the compliance is far more efficient.

During short vacations simply leave your iStore it its normal mode and let it reheat while you are away, confident that you water is kept safe at the lowest possible energy consumption. The iStore may only reheat once per week while you are away depending on weather conditions.

For extended vacations you may turn your iStore power supply off while you are away but note that the clock will need reset if you are away for over 10-14 days.

NO, the timer windows are designed to control operation of the iStore to the desired period(s), during the timer window the iStore will “wake up” and review the internal tank temperature. Should the water require heating then the system will operate until the target temperature is reached.

Once the target temperature is reached the iStore will shutdown the heat cycle but will remain in an alert state observing the water temperature, should the water require heating again it will restart the heat cycle.

The timer OFF setting will override the heat cycle and move the iStore to the “sleep” or OFF state. No heating will take place outside of the timer window.

No – the iStore can be left to operate on the thermostat only if you wish.

Yes – the operation of the fan indicates that the iStore is running its heating cycle, the fan will stop once the temperature target is reached.

Please refer to the FAQ “When should i use Vacation Mode” prior to reviewing and implementing the steps below.

Vacation mode requires a number of things to be setup and some simple steps to activate.

Firstly the system year, month, day, and time needs to be set, refer to the owners manual.

Secondly, turn the unit to the OFF state with a 2 second press, hold, and release of the power button.

Thirdly, set the mode to vacation by tapping the mode button to step thru the modes until the umbrella is displayed. Once vacation mode is selected the system will prompt for the month, day, and year of return, set each and tap thru until the lcd return to TODAYS date.

The LCD will NOT display the return date but instead the current date.

Please always refer to the most up-to-date owners manual available on the website as it is progressively improved with tips and operating instructions.

The Federal Government Clean Energy Regulator states that the manual booster may only remain active for the single heat cycle until the target temperature is reached.

Both the compressor and the booster use the same logic but different temperature sensors. The compressor uses the lower sensor(top left number on the lcd) and when that sensor falls > the target temperature minus 11 degrees the compressor will start and heat to the target. Likewise the booster uses the upper sensor(centre number on the lcd) and when it falls > 11 degrees below the target it will start the single boost button and heat the top of the tank to the target. If you press the booster and it is within 11 degrees of the target it will switch itself off again.

Please also refer to the “When should i use the booster? – FAQ”

The booster element is a either 1.5kw or 1.0kw depending on the model and is very small compared to the average 2kw(180L) / 4kw(270L) heating capacity provided by the compressor. From an energy use perspective, the compressor is 4 times more efficient so it is always the preferred heating method. From a recovery perspective, the element can deliver approx. 20 litres per hr compared to the compressor delivery on average 50-60L/hr(180L) / 70-80L/hr(270L).

So as to when you should use the booster, only under very high demand or recovery needs, and in an emergency situation.

If you do NOT have any timers set then no, nothing needs to be checked but if you do have timers then the iStore may have missed its ON or OFF time.

If the power outage is completely inside your timer window or completely outside your timer window then your normal heating cycle will not be affected.

Your iStore will carry on its normal cycle the next night or day without you possibly noticing depending on the outage time, duration and your hot water needs. Timers are not lost during power outages.

Example 1 – your timer is set to 10am to 16:01 and the power is turned off at 8am and then returns at 11am, in this case the iStore has missed the ON time and will remain OFF until the next day unless you manually switch it back on. To manually switch it on you may need to wake up the LCD by placing the palm of your hand on the screen and pressing gently, then check to see if the child lock is engaged as indicated by a padlock symbol in the lower right next to the digital clock, if it is locked then press and hold the power button in the bottom left for 8 seconds until the lock turns off. Now press the power button for 2 seconds and let go, the iStore will now change to the ON state and if required will heat.

Example 2 – your timer is set to 10am to 16:01 and the powers is turned off at 14:00 and then returns at 17:00, in this case the iStore has missed the OFF time and will remain ON until the next day unless you manually switch it back off. To manually switch it off you may need to wake up the LCD by placing the palm of your hand on the screen and pressing gently, then check to see if the child lock is engaged as indicated by a padlock symbol in the lower right next to the digital clock, if it is locked then press and hold the power button in the bottom left for 8 seconds until the lock turns off. Now press the power button for 2 seconds and let go, the iStore will now change to the OFF state.