Servowarm Elite 50.

[jazzhed96]

I have a humming noise coming from my central heating system,it also seems that the pump is running permanently.Also sometimes on ignition there is a buzzing noise coming from a circuit board in the boiler housing, I've managed to track this down to what I think is a relay. Can anyone please tell me how to get rid of these noises and let me know if the pump should be running all the time. Thanks

 

[gas4you]

If you are certain that a relay is buzzing then it will be a new pcb

 

[corgiman]

gas is right

good luck getting one thou

 

[doitall]

Has the elite 50 got one then

Amazing what you learn on DiyNot

Or have i got to get the book out

 

[namsag]

Elite fifty does have a board but the chances of gettin this through anyone other than servowarm as a call out is very remote tried half dozen big suppliers for servowarm parts 6 months ago and they all said they are not dealing with them anymore because they are horrendous to deal with

 

[gas4you]

Even parts center do not have a listing for Servowarm! Good luck

 

[doitall]

So now I got to go and take an elite 50e to bit and find the pcb have I

Any clues where it should be

 

[corgiman]

Its tucked behind the built in Programmer DIA

its a pump over run PCB

 

[doitall]

Its tucked behind the built in Programmer DIA

its a pump over run PCB

Thats just a switch between terminal 2-4 on the energy manager and terminal 6 in the wiring center.

Virtually any over-run will do the job (I think)

 

[corgiman]

Yeah but we ARE taliking about a Servowarm dont forget


believe me my Guv'nor has got us working on the bloody things

theres me thinking I left them behind as I work for the beggars about 15 years ago

Shiver

 

[doitall]

Yeah but we ARE taliking about a Servowarm dont forget


believe me my Guv'nor has got us working on the b****y things

theres me thinking I left them behind as I work for the beggars about 15 years ago

Shiver

Got to have been one of the most reliable boilers on the market and probably still is

I mean come on, how many boilers do you know that is all original (thermocouple excluded) parts and working as good as new after 26 years.

No sticky gas valves, pumps or rubbish PCBs, low water content, modulating gas valve, energy management system, and not a drop of inhibitor in sight ever.

 

[kevplumb]

I mean come on, how many boilers do you know that is all original (thermocouple excluded) parts and working as good as new after 26 years.

tell yer in a bit when me old turbomax gives up the ghost

diaphram thermocouple both wearing parts i refer the right honrable gentleman to an earlier thread

and you have had the front off your servowarm thats how you know

 

[doitall]

I mean come on, how many boilers do you know that is all original (thermocouple excluded) parts and working as good as new after 26 years.

tell yer in a bit when me old turbomax gives up the ghost

diaphram thermocouple both wearing parts i refer the right honrable gentleman to an earlier thread

and you have had the front off your servowarm thats how you know

The case has been off since I last changed the thermocouple (18months) never got around to stickin it back, maybe one day.