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The thermostat controls only the temperature of the water.

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Q: Why was water running in boiler when thermostat off?
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Your boiler shuts off before the temperature is reach on your thermostat?

Try changing your thermostat. It may be faulty.


Why do you have brown water coming out of your hot water tap you have drained tank but it still happening and the cold water tap is running fine?

corrosion somewhere between the boiler and the tap (or in the boiler) is most likely. Give it a good clean- look on the internet for how to get the rust off it. Good luck sexy!


What does a vehicle thermostat do?

It regulates the temperature of the water in the radiator and tells the fan when to switch on to start cooling or to switch off if its too cool. Engines have an optimum running temperature, and the Thermostat helps keep it at that.


Why salinometer valve fitted in boiler?

its a device use for measuring the salinity of boiler water. it is generally fitted in water drums .its is provided to prevent the flashing off of boiler water under high pressure condition.


How to drain a radiator in the house?

Not for the faint of heart! For a Combi/Evaporation boiler: Switch off the boiler. Take a reading of the boiler water pressure gauge. Shut off the radiator's thermostat valve(if fitted)/supply valve and return valves, connect a hose to the drain and put the other end into a large container below the level of the bottom of the radiator. Open the draincock first and then the air bleed valve and let the radiator drain. Close the draincock. When refilling the radiator put the anti-corrosion treatment in first then open the thermostat valve and return valve as wide as possible. when the air is expelled, close the air bleed screw. Using the fill loop restore boiler pressure. Put all thermostat valves(if fitted) to max and fire up the boiler. After the boiler has run for 10 minutes, switch off, or so go to the highest radiator and bleed out the air. WARNING: the water/steam will be very hot and likely to spit. Use a cloth as a barrier and to mop up any spills. Recheck the boiler pressure and top up as necessary.


Why does the water become cold when filling the bath from your combination boiler?

Because you are using the Hot water faster than the boiler can produce it. Turn the tap/faucet off a bit. Get the proper sized boiler


When 1990 Honda is running cooling fan does not come on but comes on when shut off thermostat and temperature switch changed?

When 1990 Honda is running cooling fan does not come on but comes on when engine is off and I thermostat and temperature switch changed?"


Can you run your boiler with the water shut off?

For a while IF the boiler has an automatic low water cut off and other safety devices but if any fail you will have a melt down and an explosion


Why does your potterton performa 24 boiler keep coming on and off for 10 15sec every 10 15min intervals even when taps are turned off used for only hot water not for central heating?

Change 3 pin micro switch that sits on diaphram, it gets stuck which keeps pump running all the time, which causes boiler running on and off at intervals. This will cure your problem 100% micro switch cost £16, its easy to change ,


Where is the thermostat on a 1998 Pontiac Sunfire?

Off the water pump


How do you change the thermostat on a 1995 Suburban?

take the water outlet off the top of the engine and the thermostat should be right there


What makes my hot boiler run an shut off then run an shut off?

When it achieves the maximum temperature, it shuts off. Then when there is demand for the water, or it is at its low setting, the boiler fires up again until it reaches the maximum temperature set.