Heatslave - lockout issues, going insane

[boilerhurtsme]

Hi, hoping someone can help. Heatslave oil fired boiler driving me insane.

Locked out - checked the water pressure gauge which was somehow through the roof at 4bar. Released the pressure. Won't fire up, keep getting lockout. Trying to bleed the system at the pump - just get never ending air bubbles, have tried 100 times for the 16 or seconds it runs before locking out again (holding lockout button will not result in it running indefinitely).

Went outside to check the lines - it's a single line feed from tank with a tigerloop. Oil drips from a low height connection before tigerloop but at the base of the tigerloop itself (input) cracked that off, no oil comes out. No oil comes out of any of the tigerloop connections at all.

Tried using a vacuum cleaner to pull the oil through the tigerloop to the outlet, thought I'd done it - still same result though - endless air bubbles from the pump when bleeding.

What are you supposed to do with these things? Any help greatly appreciated. Thanks.

 

[Burnerman]

Excess water pressure won't cause the burner to lock out...two separate issues here - maybe the filling loop is allowing water to pass by, the expansion vessel is failing or indeed so might be a heat exchanger.
The oil should be drawn up through the line using a proper syringe, and then the burner pump can take over.
The tiger loop should prevent the oil flowing back to the tank though.
John

 

[Mike2007]

You should have two pipes to the oil pump? The return pipe should also have a bypass screw fitted for the pump and tigerloop to work?

 

[oilhead]

Air signifies a leak in the inlet pipework. Check all the joints, check the oil level in the tank, check whether the inlet flexi pipe is sound. You are sucking in air somewhere.

 

[oilhead]

further thought; have you checked pump vacuum?

 

[Boilerman2]

You do have sufficient oil in the storage tank I assume??

 

[boilerhurtsme]

Thanks for all the help, sorry about lack of reply, have been away.

After much pain, with the boiler not responding to anything I tried, including scratching my head in front of it, and shouting at it, turned out that the tigerloop on the wall outside was completely shot.

Replaced it, sucked oil through using vacuum, bled the pump, lo and behold, air bubbles were replaced with stream of oil, fired up no problems and hasn't locked out since

Until the next time
Thanks all.