Hi, I have the above boiler which started squealing very loudly when running, then locking out - finally got so loud that we've turned it off.

There is plenty of oil getting through to the pump.  I have removed the pump (dogbit was fine) & solenoid, reset, but the squeal is still there.  The fan isn't rubbing so I guess its the motor??

However - since I had the burner apart the burner is now constantly on lockout - won't reset (light goes out when I depress the lockout button but comes back on immediately when I let go (not an overheat lockout)).

Have I knackered the control box too??  I don't recall doing anything which would have broken it, but I know these things happen.


Q1. This is an old boiler and there are no markings on the burner other that riello 40 (the boiler is a 40/60) - what motor do I need (if you agree I need a motor)!

Q2. Is it the control box which is causing constant lockouts? If so, again, which one do I need?

Many thanks, Nick

Constant lockout now could be related to you dismantling the burner unit and perhaps not getting it all back together correctly so you are not getting oil through.  The lockout button needs to sit in lockout for approx 2 minutes before you reset it, if you try to soon, it goes back to lockout.

As has been suggested by Scruff, recommend you get an engineer in.