worcester boiler

terrierlady

day 1 the gas man comes fault is the radiators gets hot even with the heating turned off/ new diverter valve fitted.
day 2 the gas man comes fault is the radiators get hot whilst heating turned off/ new mother board fitted.
day 3 the gas man comes fault is you guessed it the radiator get hot with no heating switched on.... lots of telephone calls between previous fitter and this one probably a thermostat?
day 4 gas man now is feed up as we are ,will ring us to see if the boiler behaves it self pump over run?
new fault the boiler wont go off on the timer at night
British gas contract.....very young guys..... anyone know the answer?

Canucklehead

terrierlady wrote: »

day 1 the gas man comes fault is the radiators gets hot even with the heating turned off/ new diverter valve fitted.
day 2 the gas man comes fault is the radiators get hot whilst heating turned off/ new mother board fitted.
day 3 the gas man comes fault is you guessed it the radiator get hot with no heating switched on.... lots of telephone calls between previous fitter and this one probably a thermostat?
day 4 gas man now is feed up as we are ,will ring us to see if the boiler behaves it self pump over run?
new fault the boiler wont go off on the timer at night
British gas contract.....very young guys..... anyone know the answer?

Good evening: Hmmm...parts changers. What boiler do you have i.e. combi, heat only?

Canucklehead

terrierlady

combi boiler large monster.... works central heating and hot water was working fine when weather cold and both c/h and hot water on but now with just hot water on cant turn off the heating the control panel show heating off plus no demand light on but still hot radiators

Canucklehead

terrierlady wrote: »

combi boiler large monster.... works central heating and hot water was working fine when weather cold and both c/h and hot water on but now with just hot water on cant turn off the heating the control panel show heating off plus no demand light on but still hot radiators

Hi...which model combi? When you say the heating is on, do you mean the heating is on when there is no hot water demand or does the heating just come on when you're using hot water?

GSR

terrierlady

the model is High flow 400 the heating comes on when we run the hot water ie when boiler fires up strange i know ,the pump seems to over run sounds like thunder!

Canucklehead

Hi...not just a monster in size;) The 400 is prone to sludging up...this impacts on the pump, the diverter the heat exchanger. Have you had problems in the past with sludge/your heat exchanger? Let BG keep beavering away until they have a solution...they might suggest that a powerflush is required to continue coverage (and in this case they could be spot on).

Let us know how you get on.

HTH

GSR

terrierlady

already had that couple of years ago heat exchanger and also power flush boiler is 8 years old. tonight the hot water gone off keeps cutting out,plus thunder louder so seem to me air in system for a start and yes another call out tomorrow....:o i asked for a supervisor for all the good that may do, nice lads but perhaps not enough experiance.

sparkypiper

have you had the programmer replaced?
is it a worcester programmer with two green buttons either side of the led screen. if so they can show that the heating is off but it isn`t. something to do with triachs sticking on the pcb of the programmer.
dont know if this helps, bg should have found this, if it is this fault though.

terrierlady

yes its that model with two green lights they replaced that board and today flushed out the heat exchanger with some sonic cleaner the guy said as you have said they are prone to sludge and they thought it was blocked..... lets hope this is it. 6 hours today again...

Canucklehead

terrierlady wrote: »

yes its that model with two green lights they replaced that board and today flushed out the heat exchanger with some sonic cleaner the guy said as you have said they are prone to sludge and they thought it was blocked..... lets hope this is it. 6 hours today again...

Good evening: Here's hoping;)

Canucklehead