Ideal Icos service tips

[AWheating]

dont normally touch them now as i dont do alot of service and maintenance work but have fitted god knows how many icos/isars. I have promised to service one this weekend for a favor . Anyway apart from following MI any tips or common problems with them i should be wary of? anything need replacing on regular service? unfortunately borrowing gas mans axe was shot down as a suggestion

the boiler is post 2003 so should have the redesigned burner box.

i remember reading in one post about pouring boiler water down the flue?

any advise would be appreciated

 

[diamondgas]

Condensate sump is prone to blocking Also check the burner chamber insulation is in place and the retaining clips haven't warped.

 

[Dannypipe]

I service a lot of Icos's (lucky me huh!).

Check the spark electrode. They droop and is a common cause of explosive ignition in this boiler.

As said, check the sump. Pay particular attention to the hole that leads to the trap is clear. I've known it to completely block up. The last one I serviced I had to change the condense trap as it had blocked, and cooked. It was like a lump of volcanic rock in the trap.

As said, check the insulation and the retaining/earth clips.

If you are going to examine the insulation in the combustion chamber you will need the gasket kit, which is a rip off. I don't always check the burner as it's generally pretty clean (combustion results confirming of course), and you can check the spark electrode and the flame rec' probe without going to the trouble/expense.

 

[rodders]

Anyone know the size of the bolts holding the combustion chamber together? i'm after a flexi spanner type thing, just need to know the size.

Thanks

 

[diamondgas]

Anyone know the size of the bolts holding the combustion chamber together? i'm after a flexi spanner type thing, just need to know the size.

Thanks

8mm I believe 2BA

 

[villa_tom]

8mm I believe 2BA

Spot on sir

 

[buckley plumb]

dont services these now with out going armed with a spark electrode / insulation and ionisation mod kit / burner seal.
anyone got any tips how to remove the condense trap i seem ok on the icos but stgruggle with the issar

 

[andyg0507]

retaining bolt on left hand side as your looking at it (flat screwdriver) and one phillips screwdriver for right hand side, the worst bit is getting that rubbish rubber tube back on once youve got s trap off

 

[Billy Bob Bob]

Anyone know the size of the bolts holding the combustion chamber together? i'm after a flexi spanner type thing, just need to know the size.

Thanks

as said 8mm,you dont need a flexy driver just a standard 1/4 socket set