Question about Heating & Cooling
Don't take air out of the expansion vessel the air is there for the diagram to work . you have to see how bad the drip is on the saftey valve any loss from there is not good . try changing safety valve first cheap fix if you still have the same problem then its the vessel did you bleed the rads after topping up ?
Posted on Jun 15, 2017
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Posted on Jan 02, 2017
You likely have a restriction in the heater coolant hose circuit - perhaps a coolant control valve not fully opening, or a kinked hose.
Insufficient coolant volume is flowing to keep the heater core hot.
Try back flushing the heater core system with a garden hose to check flow.
Posted on Nov 13, 2009
there are air in the system let it out til you get water in the release outlet fil up to 1,5 or 2 bar no problems wil started also control the expan ballon for bilding and expanding the pressure
Posted on Dec 20, 2009
If this is a newer boiler, if it has a control board with a 24volt output
check to make sure boiler has line voltage to it. No fuse Blown/Breaker
If that is not the problem and power is available it could be the thermostat. If there is a pump involved,make sure it can operate
Posted on Dec 28, 2009
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