Problem
Cause
Remedy
Insufficient or
no hot water
Gas boost heater not operating
Check that the power cord at gas booster is plugged in and the power point is turned on.
Check that the gas is turned on at the gas meter and the isolation valve near the gas booster.
Open the hot tap fully. The gas booster will not ignite if the water flow rate is less than 2.4L
per minute.
Try another gas appliance and contact the gas supply authority if no gas.
Electric boost heater not operating
Check that the isolating switch at the switchboard is turned on and fuses are intact.
Try another electric appliance and contact the electricity supply authority if no power.
Insufficient gas supply to gas
booster
If the number of gas appliances being used exceeds the rated capacity of the gas meter and
regulator, there may be insufficient gas flow to the gas booster. Call a licensed plumber to
check that the rated capacity of the gas meter and regulator is sufficient.
Excessive hot water consumption
For electric boosters, if the amount of water used during the day exceeds the capacity of
the hot water storage tank, the water will turn cold. Have water saving fittings installed or
increase the size of the storage tank.
For gas boosters, if several hot taps are running at the same time, the combined flow rate
may exceed the capacity of the gas booster.
Have water saving fittings installed or increase the size of the gas booster.
P&TR valve or expansion control
valve continuously discharges water
P&TR valve may have foreign matter lodged in valve seat.
Lift and lower lever carefully as outlined in section “Regular Care” within the “Maintenance”
section of these instructions.
P&TR valve or expansion control
valve discharges high flows
Mains water pressure may exceed specification for hot water storage tank.
Call authorised Stratco installer to fit pressure limiting valve.
Incorrect thermostat settings
Check the water temperature at the hot water tap closest to the hot water storage tank.
If the temperature is less than 55˚C, call authorised Stratco installer to adjust the thermostat
No water
flows from
the hot tap
No mains water supply to inlet of
hot water storage tank
Check mains water isolating valve to inlet of hot water storage tank is open.
Check mains water isolating valve at water meter is open.
Check water flow at a cold water tap and contact the water supply authority if no water.
High
electricity or
gas bill
Excessive hot water consumption
If hot water consumption has increased since the system was installed, it may be beneficial
to install a larger system.
Power to electronic controller turned
off
Check that the power cord at electronic controller is plugged in and the power point is
turned on.
Use another appliance to test power point if there is no display or illuminated led on the
electronic controller. Call electrician if no power available at power point.
Call authorised Stratco installer if power is available at power point but electronic controller
is not functioning.
Insufficient heat available from
sunlight
Higher electricity or gas bills are normal during winter or very cloudy weather due to reduced
amounts of sunlight.
Shading of solar collector
Construction of new buildings or growth of trees may increase shading of solar collectors.
Prune trees or relocate solar collectors if obstruction is permanent.
Dirty solar collector
Clean evacuated glass tubes as outlined in section “Regular Care” within the “Maintenance”
section of these instructions.
Broken or damaged evacuated tubes
Check condition of glass and state of vacuum as outlined in section “Servicing & Repairs”
within the “Maintenance” section of these instructions. Call authorised
Stratco installer if replacement of glass tubes necessary.
P&TR valve or expansion control
valve continuously discharges water
P&TR valve may have foreign matter lodged in valve seat.
Lift and lower lever carefully as outlined in section “Regular Care” within the “Maintenance”
section of these instructions.
P&TR valve or expansion control
valve discharges high flows
Mains water pressure may exceed pressure rating of valves.
Call authorised Stratco installer to fit pressure limiting valve.
Water flow
fluctuations
Several taps open at the same time
If several hot taps are running at the same time, the flow rate may decrease at each tap.
Ensure only one or two taps are in use at once, or have water saving filters installed.
Water
hammer
Existing plumbing
Call a licensed plumber to install a pressure limiting valve or water hammer arrestor.
TROUBLE SHOOTING
