Appliance Repair Questions? Ask a Technician for Answers ASAP
Hi , is the water flowing out of the vent pipe that overhangs the tank?
Have you changed the pump or any pipework changes?
The water is flowing out of the vent pipe into the header tank. The pump nor any of the pipework has been changed
Him. You could have air or a blockage that may have developed after the vent tee . is your heating working well , all radiators getting hot ?
Yes, all radiators are getting hot.
Ok . if there has been no change to the system and the pump speed hasn't been changed and it hasn't pumped over before it can only be caused by slugde or air in the system . is there any manual air release points , maybe near the hot water cylinder that near releasing air?
I can only see a drain cock on the pipe coming from the bbottom of the hot water cylinder
Ok . I believe your system must be sludged. Is it running out of the vent as a dribble or really flowing?
It is a flow causing the header tank to overflow almost continually
Ok . is thecwqater flow out of the overflow pipe outside?
Yes, the overflow water is drip, drip, drip to our outside yard
Ok .if you turn the heating and hot water off , is the tank level still rising and overflowing even if the ball valve is shut?
Just checked, the warm water has stopped coming out of the vent pipe after I turned the c/h off
Ok your system must be sludged up . could please try turning the pump. To setting 1 and see if that stops it , thanks .
Hi , ho did you get on?
I could'n find settings on the pump only a switch, \\\\\\\iturned it off and then on but the pump has not come back on!
Ok . the heating is on at prog and room stat?
That's blooming weird ,it won't turn back on ? Are you sure it hasn't , could it just have come back on quieter?
I will check again
I have never known a pump with aonly a switch .they always have speed selectors
I have checked-the pump is not turnung, Ihave put my hand on it & no vibration
If its on speed one then you wouldn't hear or feel it . can I ask you if the system could have been pumping over for a long time and it just hadn't been noticed?
Only asking this because pumping over is usually a design fault in the pipework or the pump being fitted other wrong way round.
the system must have been pumping over a long period, there has been an intermittent period when this has happened before
Ok . there must be a system design fault somewhere. Are you able to do the pipework changes yourself?
Not really - but the heating is now off due to the pump on stop
What model of pump is it ? Ie, grundfos 15-50
Grundfos Super 4
I'm pretty sure that is a hot water circulator. Does it have a gold label?
Ithink the super 4 is a two speed
Does it have numbers after the 4 , ie 130 or 180
Try switching the pump again it should go up to the higher speed . if it doesn't then it may have been on the way out.
It doesn't have a gold label. It's Type 4.50/130 Class F
Ok . to be honest there care a few ways to cure the pumping over. 1 is to link the vent and feed together. .2 is to reconfigure the pipe work so that the feed and vent is before the pump 3 is to use a vent feed separator. 4 is to make sure the vent is two feet above the header before curving down .
Sorry your pump is a normal heating pump
The switch on the pump, was that suppose to change the speed? If not, why has it not come back on? We have no heating now
Is there power to it , prog and room stat on?
Did you switch it back to the original setting
Thermostats on, and is switched back to it's original setting, I don;t know if there is power to it!
Ok . it may have packed up . the super 4 is an old pump. Is it vibrating humming or getting hot?
It is not, humming or vibrating and is hot due to the water that was circukating through it.
Ok , one thing you could try with it is to open the pump bleed screw and turn the pump to get it going again with a small screwdriver. There will be a little water coming out . a towel will take care of it . but really to solve the pumping cover you will need a reputable heating engineer .
I'll try this now
I don't know where the pump bleed screw is can't find it
It is right in the middle of the round face with the label
Hi , I am off to bed , sorry got an early one tommorow . hope you managed to get the pump spinning again . you obviously need a new pump and someone to reconfigure the pipework a bit . pumps are £80. I am sorry that I had no easy quick solution , I am around tomorrow if you want to continue , good luck , all the best
I can see your typing
How does you get on ?
Have now removed bleed screw & turned the pump with a screwdriver and is turning freely & have turned thermostat up..... still not pumping!
Ok . sorry buy the main starting capacitor must be dead .
It must have been very week to go to fault at the change of speed
Ok. Thanks a lot