Technical data

14
Troubleshooting
Check the items below before making a service call. If the water heater is
within/out of the warranty period you will be charged for attending to any
condition or fault that is not related to the manufacture or failure of a part.
For warranty terms and conditions (refer to “Warranty” on page 31).
Not Enough Hot Water (Or No Hot Water)
• Is the water heater’s electricity supply switched on?
Have your electrician check to ensure the water heater is switched on
and that there is electricity at the water heater.
Note: Check the electricity supply to which the water heater is
connected. If the water heater is connected to an Off-Peak or time
controlled electricity supply, heating hours will be restricted (refer to
“Off-Peak Electricity Supply” on page 4).
• Twin element water heaters
A twin element non simultaneous model must have power available to
the top heating unit circuit at all times for the water heater to operate as
designed. Have your electrician check to ensure this is the case.
• Are you using more hot water than you think?
Is one outlet (especially the shower) using more hot water than you
think? Very often the amount of hot water used is not realised,
particularly when showering. Carefully review the family’s hot water
usage. Have your plumber fit a flow control valve to each shower outlet
to reduce water usage.
• Pressure temperature relief valve running?
Is the PTR valve discharging too much water? (Refer to “Pressure
Temperature Relief Valve Running” below).
• Is the thermostat setting correct?
Ensure the thermostat setting is appropriate. Have your electrician
check and adjust the thermostat upwards to gain additional hot water
capacity. Refer to “Temperature Adjustment” on page 6.
Warning: Hotter water increases the risk of scald injury.
• For EM50 models; are the water heaters inlet and outlet connections
cross connected?
Refer to “Left and Right Hand Side Water Connections – EM50 Models”
on page 20 for acceptable cold water inlet and hot water outlet
connections. Cross connection of the water heaters inlet and outlet
connections on EM50 models will result in a reduction of the water
heater’s performance.