Facts worth knowing about Oil nozzles - Danfoss.com

What can be wrong if there is no flame?After carefully doing everything to make the plant run it is very frustratingwhen no flame appears.There can be many reasons, among them:• No oil in the tank.• Leakage in the suction line.• The valve in the suction line is closed or perhaps the line has been troddenflat.• The oil pump will not suck.• The oil pump does not rotate because the coupling is worn out.• The solenoid valve on the oil pressure line will not open.• Dirt in the oil tank is being sucked up to block the pump and nozzle.• Oil nozzle blocked because dirt has entered when fitting it.• No spark because of a fault in the transformer or because of faulty leads.• No spark due to short-circuited electrodes – or oil coke or soot deposits onthe porcelain insulators.• Pump rotates in the wrong direction.• If valve on the suction line is the wrong way round.• The oil is too thick (too cold?).• Pressure pipe to the oil nozzle blocked up.• Suction and return lines reversed.• The oil supply to the pump may have been set up for a two-pipe systemwhere a one-pipe system exists, (or vice versa).• Oil pump hydraulic valve defective.• Oil pump pressure too low.• Air in the suction line because of too high a vacuum (5 - 6 m wg).30