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How do I alter the time my Dux hot water service heats the water?

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Posted on Jan 02, 2017

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SOURCE: how to adjust thermostat on Dux hot water system

Add a comment and say which water heater you have: Gas, electric, solar, tankless, or heat pump. Otherwise expert is just guessing.
Or contact dux, and tell them which model and type heater you have.
http://www.dux.com.au/products/home

Posted on Aug 15, 2012

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Heating and hot water only warm. I'turned dials up and altered thermostat but nothing helps and pressure dial keeps going into red HELP


Check your dip tube.

the higher up the dip tube is broken, the colder the water will be.

Knowing the make and model of heater will help.


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Mar 09, 2015 | Water Water Heaters

2 Answers

Rheem 71 30d


You should be able to control hot water temperature by adjusting the thermostats. Either or both may have failed, causing heating to increase to the maximum. The "spitting" is caused by boiling water. Likewise, the pressure relief valve is operating as it should resulting in the overflow you observe. You need to get your heater serviced immediately!!

Oct 10, 2013 | Rheem Tankless Hot Water Heater...

1 Answer

Runs out of hot water fast


Test elements, and if elements are good, replace both thermostats.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Rheem does not post service manuals.
If this is 3-phase balanced water heater, then information above is altered.
Otherwise parts are generic and testing steps are same

Mar 26, 2013 | Rheem ELD80 Commercial Electric Water...

1 Answer

How to adjust thermostat on Dux hot water system


Add a comment and say which water heater you have: Gas, electric, solar, tankless, or heat pump. Otherwise expert is just guessing.
Or contact dux, and tell them which model and type heater you have.
http://www.dux.com.au/products/home

Aug 15, 2012 | Water Heaters

1 Answer

Sime super 80.. Heating and hot water at the same time?


going off on a safety possible high temp unit needs service such a nozzle filter if oil or thermocouple if gas

Jun 16, 2017 | Water Heaters

1 Answer

My reliance natural gas water heater overheats causing scalding water to come out of my faucets. I have had authorized service companies come out three times to replace and retrofit different controls and...


Information below is for tank-type electric or gas heater only.

There is a condition called stacking.
This might apply to your water heater or not.
Having authorized service people to your house 3 times suggests more complicated mix of problems.

Stacking is caused when there are repeated short draws of hot water.
As you know, each time any hot water is drawn out of faucet, cold water immediately enters bottom of tank through the dip tube. The dip tube is connected to cold water inlet and runs to bottom of tank.
So all cold water enters bottom of tank close to the gas water heater thermostat.
See illustration of dip tube, that also shows copper thermostat sticking into tank that is connected to gas valve.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html#flushelectric

Let's say your water heater if fully heated and burner is off.
A short draw of hot water causes cold water to enter tank.
Another short draw. And then another short draw, each draw happens close to same time as other draws.
Water at top of tank is plenty hot, but bursts of cold water get near thermostat and cause thermostat to turn on burner.
Burner heats water and more hot water rises to top of tank. Water at top of tank becomes overheated each time stacking occurs.

Again, a stacking situation may not be the cause of your problem.
However, remember if single-handled faucet is opened straight upward, then that draws both hot and cold water. And cold water immediately enters tank.
Only when the single-handled faucet is lifted with the handle all the way to the right, does it draw only cold water. Even so, some single-handled faucets have bleed-over between hot and cold sides, so hot water is drawn anyway.

Another possibility is that the dip tube ends at or near thermostat, instead of going all the way to bottom of tank. The dip tube should go straight down from cold water inlet, but dip tubes are made of plastic, and some self-cleaning tanks have a curved dip tube or dip tube with perforations that create currents designed to stir sediments off bottom of tank (although this is not proven to be effective deterrent to sediment formation).

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 10, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

I am not getting any hot water, only cold water, when I run my hot water taps. I have an Ariston Bravo water heater. Normally I have permanent hot water at any time. My central heating seems to be...


Sounds like the by-pass valve diaphragm. This valve detects that hot water is being drawn off at the tap and then diverts the mains input water across the heat exchanger. Very often it's the diaphragm inside the valve which is punctured or split.This can be replaced [depending on model] if you take apart the valve
. Remove the front panel and lower the control panel.The valve is at the bottom left of the boiler
Suggest turning off the service taps to the two heating pipes and the cold mains inlet pipes before tackling the valve

Mar 20, 2010 | Water Heaters

1 Answer

Radiator heats up when running a shower.


Your boiler is overdue for a service.

Combi boilers are unlike regular boilers in that they have quite a few moving parts, it's vital that these are serviced annually if you want the boiler to remain reliable and to avoid expensive failures.

In your case, the diverter valve has most likely failed. Normally, when the heating is on this senses when there's a demand for hot water and temporarily diverts the primary hot water circuit to feed the domestic hot water heat exchanger. When the demand for hot water ceases the primary hot water circuit is diverted back to the central heating heat exchanger. The valve has a number of moving parts including a rubber diaphragm which can wear out and split and moving shafts which can seize.

When the valve fails it can leak and also can divert hot water to the central heating heat exchanger when hot water is used. The reason that only the highest radiators in the system are affected is probably because the failed valve does not necessarily cause the central heating pump to activate and circulate the hot water throughout the system (it does on some boilers though). If hot water is introduced into a cold heating system it will rise via convection to the highest points in the system like an old fashioned gravity circulation system which was unpumped.

Call a heating engineer out as soon as possible; I'm not going to advise how to do the repair yourself as gas appliances MUST be serviced by qualified persons only for reasons of safety. If you're lucky then the valve simply needs cleaning up and a few new diaphragms plus other minor seals and rings. If it's gone too far then the valve and possibly the manifold it's attached to will need to be replaced.

In the UK the part alone typically costs between £100 to £200 depending on whether it's just the valve or the manifold as well. The diaphragm kit typically costs up to around £15 and is routinely fitted when the boiler is annually serviced, and a new valve will already have new diaphragms fitted. For a routine service expect to pay for up to two hours labour (many can be done in one hour), but if the valve/manifold have failed it will be longer as one failure often causes other parts to need further inspection/repair.

I hope that I've helped you today, if so please return the favour by rating my answer.

Jul 10, 2009 | Whirlpool Aquatic Millennium VII -...

2 Answers

Water doesn't stay hot PowerStar AE3.4


Are you using a single lever faucet? The install guide does indicate that you may need to reduce the input from the cold water side to ensure that water stays at a consistent temperature (see page 7 of the installation and service manual). Also, remember, this is a SMALL hot water heater. So if you're running for any length of time at full output, it may not keep up with you (see page 8 of the service an installation manual). I found the manual online at http://www.airwater.biz/images_templ/bosch-water-heaters-ae3.4-manual.pdf.

Jan 24, 2009 | Bosch PowerStar AE3.4 AE3.4 Point-of-Use...

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