worcester danesmoor 26/32

[bonkersboiler]

Early 90s worcester danesmoor has had its insulation stolen by vermin after not being used for some time.

Having cleaned the debris out and checked all wiring and pipework is sound I gave it a test run.

The boiler fired up ok but after approx 20 mins the electricity mains tripped in the meter cupboard (not the boiler trip, but that locked out as well).

I left the boiler till the next day, it will not start, the lock out (on the burner) will re-set ok but the boiler will not fire up. I've got good clean fuel supply at the boiler but when I open the bleed screw and switch on no fuel comes out.

Any help with this problem will be much appreciated.

 

[rpm]

Somebody stolen your oil?

PS. Welcome to the forum bonkers.

 

[Unregistered]

No, as stated good clean oil feed at boiler.

 

[rpm]

No, as stated good clean oil feed at boiler.

Just wait for an oily to come along later then, I have my own ideas but need an expert to advise you.

 

[Unregistered]

Thank you.

 

[Dotty]

You've two different faults there.

You been working on oil long?

 

[lame plumber]

sounds like a proper service and recalibration is required, along with at least one replacement part.

gawd when did croppie start typing quickly?

 

[Unregistered]

Hi Croppie,

Thanks for your reply, no not long at all.

 

[Best]

Is the burner motor turning after you press reset?
Oil pumps and motors seize up after being left a few months not going.
I would check if mice have got into burner fan etc, or have chewed at burners wiring

 

[Unregistered]

Thanks, I will have a closer look at it tomorrow, I suspect the pump/motor, if the motor jammed and burnt out then presumably this could make the electric trip switch drop out? The only thing that slightly leads me away from this is it did not squeal before stopping, as I would of suspected it to do if seizing up?

 

[rpm]

Thanks, I will have a closer look at it tomorrow, I suspect the pump/motor, if the motor jammed and burnt out then presumably this could make the electric trip switch drop out? The only thing that slightly leads me away from this is it did not squeal before stopping, as I would of suspected it to do if seizing up?

See post #9

 

[bonkersboiler]

All wiring is good, motor and pump both spin freely. I have removed the motor and put a 13a plug on it to test it in a socket, it seems to start quite lazy and doesn't seem to spin at the 2750rpm it should, it's only a small motor but should it kick in with some umph and spin with a bit of force? (the fan is still attached). Does it sound like it's shot?

 

[Best]

If it starts lazy then the capacitor might be faulty, but motor could be faulty.
All you had to do to test the motor was wire the live wire from it in control box to the live coming into control box.

 

[rpm]

Generally a duff capacitor shows as a split or it is deformed, a weak capacitor can struggle to spin the pump when it is "under load".

 

[jensda]

check for bits of insulation forced into the blast tube and blocking it
will restrict the airflow through the burner and slow down the motor dramatically

 

[bonkersboiler]

Thanks everybody for your help, new motor fitted and the boiler is working as it should. I now need to re-insulate, will start another topic.