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Maintenance Manager

Hot Water System Guide

If you are experiencing faults with your hot water system, please check the following points below before logging a maintenance or emergency request:

Electric Hot Water Systems

No Hot Water

  • Check that the isolating switch (generally found in the switch board, often marked “Hot Water”, “HWS” or “Water Heater”) in on the ‘ON’ position. Also check to ensure the fuse at the switchboard has not blown.  Check the electricity supply as to whether the hot water system is connected. If connected to off-peak heating, hours will be restricted.
  • If you have a twin element system – the twin element hot water systems must have power available to the top heating unit circuit at all times for the hot water system to operate as designed.
  • Water Consumption – ensure that your family is not using more hot water than the amount available in the hot water system.

Leaking - can you detect water leaking from the plumbing system?  It is normal for the PTR (Pressure Tempering Relief) Valve to discharge a small quantity of water when heating. However, if it discharges more than 10 litres of water a day, there may be another problem. If it is continuously running, try lifting or turning the lever/knob gently on the TPR valve for a few seconds and release. This may dislodge any foreign matter in the line. If it continues, please contact us.

 

 

Cold water leaking – if water is leaking from the expansion valve (this valve is located in the cold water line to the water heater) this is normal for up 10 litres of water per day. As the cold water heats up in the tank, the water expands and discharges any excess water from the water expansion valve. Any more water than this, please contact us.

Experiencing no hot water or hot water for a minute then it goes cold – it is possible that the water level is below desired lever. To top up the level of water, lift the pressure relief valve lever against the spring pressure until you see water come from the overflow pipe (from position 1 to position 2). It is recommended this valve is topped up every three months.

Steaming – This could mean the unit is boiling. You can adjust thermostat down or the thermostat may need replacing. Either way please contact us to address this issue.

 

Gas Hot Water Systems

No Hot Water

  • Pilot Light – check that the pilot light is igniting and burning. Relight the pilot light according to the instructions on the inside of the access cover. If the pilot is not lighting, check that there is gas to the water heater. Check that the isolating valve on the gas line is turned ‘ON’. Furthermore, check to see if there is gas being supplied to the rest of the house, testing other gas appliances. If there is no gas, call the gas supply company you have engaged. Otherwise, please call us.
  • Electronic Ignition – check that the power cord is plugged into the wall and check fuse in meter box.

Leaking - can you detect water leaking from the plumbing system?  It is normal for the PTR Valve to discharge a small quantity of water when heating. However, if it discharges more than 10 litres of water a day, there may be another problem. If it is continuously running, try lifting or turning the lever/knob gently on the TPR valve for a few seconds and release. This may dislodge any foreign matter in the line. If it continues, please contact us.

 

Solar Hot Water

The general performance and energy saving that you can expect to obtain from your solar hot water system will depend upon a number of factors, such as water usage patterns, daily temperatures, available solar energy and the cost and type of purchased energy being used.

During winter and overcast/cloudy weather we recommend that you turn your booster switch ‘ON’ to ensure you won’t run out of hot water. During the winter months, we suggest that you leave the booster switch off during the day and turn on only a couple of hours prior to shower (hot water usage) to maximize solar contribution.

No Hot Water

  • Sunlight – check to ensure that shading from trees is not excessive and not covering the collectors for all or part of the day. Insufficient light due to cloudy/overcast weather and low solar contribution during winter months may require you to use your booster (back up electric switch) more often.
  • Water Consumption – have you used more hot water than normal?

Leaking - can you detect water leaking from the plumbing system?  It is normal for the PTR Valve to discharge a small quantity of water when heating. However, if it discharges more than 10 litres of water a day, there may be another problem. If it is continuously running, try lifting or turning the lever/knob gently on the TPR valve for a few seconds and release. This may dislodge any foreign matter in the line. If it continues, please contact us.

Cold water leaking – if water is leaking from the expansion valve (this valve is located in the cold water line to the water heater) this is normal for up 10 litres of water per day. As the cold water heats up in the tank, the water expands and discharges excess water from the water expansion valve. Any more water than this, please contact us.

Booster switch turned on – Is the booster switch turned ‘ON’ (switch in meter box or somewhere else in property marked ‘Hot Water’ or ‘HWS’ etc.) Check the electrical tariff to which the hot water system is connected. If it is connected to off-peak heating, remember heating hours are restricted. Is the fuse for the booster still intact? Does the electric or gas meter speed up when the booster switch is turned ‘ON’? If so, please contact us.

 


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