buzzing ballasts

[chris gray]

weve fitted in excess of 200 catII twin fittings.
3 of them are making a horrendous buzzing, ive checked all connections at the light and on the circuit but to no avail.
apart from changing the ballast does anyone have any advice please?
regards

 

[bugsy]

Who is the manufacturer

 

[mogga]

out of 200 to have 3 buzzin aint bad are the "Buzzers" emergency or ordinary? IMO take them back n get wholesaler to replace buzzy ballasts just happen

 

[chris gray]

trying to rack my brain, think theyre fritzgerald all standard fiittings
got push fit connections if that helps name them, as i really cant think. been up since 3 am

 

[mogga]

give in for the night M8y n get new ones tomorrow theres nothing i can think of to correct buzzy ballast bar replacement

 

[chris gray]

oh i gave in a after i checked all connections, sat in digs drinking stella. knew that the only option was to change them but id rather sound stupid than look stupid and didnt want to return them and be told that all i needed to do was something simple on site.

 

[nickblake]

normally this is caused by a slight bend or twist in the fitting , ,if you slacken the screws and slide in some heat resistant washers even tap washers under the screw area may just do the trick ,but not directly under the coils ,bit of a bodge it but may work , or even better put HF ballasts in

 

[chris gray]

so put some distance between the ballast and the fitting?

 

[Deleted member 9648]

As above....sometimes 'wedging' something under the choke will stop it....not so much getting distance between choke and fitting,but reducing the vibration which causes the buzzing.

 

[chris gray]

im going to give this a go tomorrow,
probably try putting some washers under the fixing points.

 

[bugsy]

Change the fittings, if the ptoblem reoccurs in three months you'll have to go back and change them anyway

 

[chris gray]

oh its inevitable, just curious is all on peoples ideas.

 

[ian.settle1]

If they are the old magnetic type of ballast change them now as they will only get worse over time.

 

[Marvo]

If the fittings are brand new then I wouldn't hesitate to return them. Wedging something under the ballast may cause them to run warmer than usual. The ballast fixed securely to the body of the fitting helps sink heat produced.

 

[davelerave]

on a new install of 200 fittings -the T5 and HF ballast would prob be better



-what is the price difference for installation roughly