Continuous Flow
If Controllers are fitted (Are they turned on?)
Is there power to the unit? (check by plugging in a hairdryer or radio etc. into the power point that the continuous flow system uses)
Is there power to the home? (Check lights, appliances, street lighting and main fuse box for tripped fuses)
Has there been a storm or high winds? (Try turning off power, unplug power lead, wait 60 secs, reconnect and turn on, retry). May have blown the internal fuse or damaged surge protector?
Is there gas getting to the unit? (If applicable, check LPG bottle. Check stop valves to the appliance and to the property. If available, check other gas appliances in the home)
Check if fault with water heater (fault code displayed on the case of some models or on controller, if applicable.)
Electric Storage
Is there power to the home? (Check lights appliances, street lighting and main fuse box for tripped fuses)
Has the hot water capacity of the unit been depleted? (If peak electricity, wait 1-2 hours and test for hot water. If off-peak, wait until morning and test for hot water)
Gas Storage
Has there been a storm or high winds? (Check the pilot light is lit, reignite if necessary)
Is there gas getting to the unit? (If applicable, check LPG bottle. Check stop valves to the appliance and to the property. If available, check other gas appliances in the home)
Has the hot water capacity of the unit been depleted? (Wait 1 hour and test for hot water)
All hot water
Inlet water filter (strainer) blocked?