Gravity feeding to the pump is ok, gravity feeding without a pump is not allowed. Do this test if you suspect a fuel problem. Fuel flows into the combustion chamber where it is vaporized and mixed with air from the combustion air intake pipe and burnt. Depending upon how far out of spec the pump is, it could work ok with some Airtronic D2 heaters but not others, it might only work with a heater in good condition, it might work only with some types of fuel etc. It is still considerably … The pipe before the pump is under suction so no fuel will leak out to indicate problems. If insufficient fuel reaches the Eberspacher the flame will extinguish and the flame-out causes the heater to shut down. Too much fuel can cause similar starting problems, overheating, black smoke and the heater to clog up. Large diameter fuel pipes can cause several problems including not priming the pipes, non starting and flame-, If insufficient fuel reaches the Eberspacher the flame will extinguish and the flame-, Before January 2011 'red diesel' was normally High Sulphur Gas Oil (also called 35 second oil, household heating oil). • Check fuel supply / measure fuel quantity, see page 33. Standard Kerosene to BS2869 Class C2 is a heavier distillate than Paraffin. 2. Skip from Tennessee USA attached a small clear gas line to the hard plastic fuel line, filled it with acetone (alternative solvents like carb cleaner can be used) and let it sit for about an hour. In some cases the heater metal fuel pipe can be completely blocked. Remove the pump and bench test it as described on Fuels 2 page. Any change will require several fuel volume tests. When using 100% biodiesel, the heater should be operated twice a year with diesel fuel (in the middle and at the end of a heating period) to burn off PME deposits. Planar Diesel Heater Controllers ... TROUBLESHOOTING FOR Eberspacher hydronic 4/5 HEATERS . If the pump does not deliver sufficient fuel it can cause non or difficult starting, flame-outs and white smoke. Carbon build up can obstruct the fuel flow where it enters onto the glow-plug screen. After doing considerable research, it seems the Webasto isn't as easy to service and the blower motor design life is shorter at 3,000 hours against the Eberspacher at 5,000 hours. Eberspacher or Webasto diesel heaters. 35 second oil is High Sulphur Gas Oil as mentioned above. If the pipe is disconnected fuel spurts out quite strongly, if it just trickles out there is a problem. Low operating costs. The self-regulating output range is between 2900BTU and 7500BTU. Permalink . Cheap pipe is soft and kinks easily blocking the supply. I put the new clamp on the shaft of a screwdriver and tighten it down until it is smaller than the rubber tube before loosening. A 1 m length of 1.5 mm internal diameter pipe is filled by nearly 2 ml of fuel. This is always a new installation where the fuel connection has been tapped from the existing fuel supply pipes. If the heater takes fuel from the main tank a separate fuel pickup pipe is normally used. Permalink . Any water trapped in the pump or filter can freeze and block the fuel feed and seize up the pump. The pipe on some types of pick up tubes is a push fit into the upper part and this can cause air leak problems. Eberspacher or Webasto diesel heaters. Also known as 28 second fuel, this is a lighter alternative to standard heating oil (Gas Oil) and burns much more cleanly with low sulphur content. Maximum height lift for a D2 from the pump to the Eberspacher is 2 m. The pipe from the pump to the fuel tank is usually black hard plastic 5 mm outer and 2 mm internal diameter. Air bubbles should be removed before measurement. Eberspacher created the first diesel air heater in the 1930's. There are too many details to cover here, full details are in the manuals. Then he flushed the line with diesel. Maximum height lift from the bottom of the tank to the pump is 1 m. The proper fuel pipe is difficult to kink or compress. It runs for about another 30 seconds or more and begins to produce warm air. The cetane value of the fuel also drops as it ages and can drop so low it will no longer ignite in the heater. If the wrong amount of fuel is delivered and all other causes except the pump have been eliminated check the pump clamp fixing bolt has not loosened allowing the pump to move to horizontal. After problems when we bought some bad red diesel before it changed in 2011 we tried Kerosene, standard 28 second central heating oil. Before January 2011 'red diesel' was normally High Sulphur Gas Oil (also called 35 second oil, household heating oil). Pipe details quoted on this page generally apply to D2 D4 and some similar heaters, check manuals for confirmation on other models. A pipe with a burr or sharp end can slice into the rubber as it is inserted forming a flap, photo on the Faults page. (it messes with the amount of diesel that reaches the heater) This is the most common of the diesel heater installation mistakes… but it’s an easy fix: The fuel pump should be mounted on a 15-30 degree angle to allow the air bubbles to escape. Any pump within that quoted limit of 3.7 to 4.4 cc should work with any Airtronic D2 or D4 heater so if the pump measures 3.7 cc it passes the test and is ok. A pump does not simply work ok at 3.7 cc and then fail to work as soon as it drops outside the limit to 3.6 cc. The motor of the diesel heater is a bit more powerful and has the capacity to push more air, creating a little more noise than the gas heater. Old foil pie dish makes an alternative container. The pump is pulsed by the Electronic Control unit (ECU), each time the pump pulses the solenoid makes a loud "tick". All the symptoms point to a replacement leisure-battery being needed. No other air heater react so fast and sensible to temperatur differnces and act concerning to this. The winter is approaching and boat owners will be looking towards firing up their Eberspacher heaters to keep warm. Disconnect the fuel pipe from the Eberspacher fuel inlet and insert it in a small container to catch the pumped fuel. The original and best diesel air heaters out of Germany. $60.00. It may be difficult to find a kerosene supplier for small quantities, most only deliver and specify at least 100 litres. Where pipes are joined they should butt against each other inside the rubber connecting sleeve, gaps can trap air bubbles. Cable). Leaks in the pipe between the pump and heater can result in fuel leaking. Please note, this model is not manufactured anymore - if you want to replace your old D3 heater, you can choose between the below heaters in the similar power range: 2.2 kW Heaters: Eberspacher Airtronic D2 12v (2.2 kW) Eberspacher Airtronic D2 24v (2.2 kW) 4 kW Heaters: Eberspacher Airtronic D4 12v (4 kW) The causes were investigated and solved in the, Fuels not recommended for Eberspacher heaters, Any change will require several fuel volume tests. The fable is that Ferdinand Porsche needed to be able to pre-heat his high performance air cooled Porsche engines in snow conditions (before starting the engine - to prevent damage), the Eberspachers were acquaintances and this is why the air heater was born. The Chinese Diesel Air Heater – Troubleshooting and Parts Sales Facebook group is by far the most popular with over 25,000 members across the world. Supermarket vegetable oil (New or Used frying oil) unless properly processed into FAME. TROUBLESHOOTING FOR Hydronic 4/5 HEATERS (“No start” and “Heater Stops” conditions) Use these recommendations in conjunction with Fault Code List and heater’s manual . If the fuel pipes are empty the pump has to purge the air from them before fuel can reach the heater. Home made or roadside bio fuels are very different to EN 14214 spec oil. Earlier manuals list paraffin and it is suitable but often difficult to obtain cheaply.. At that time the heater was very close to needing a 2000 hour service and was smoking. Fuels 3 page practical fault finding example, There are too many details to cover here, full details are in the. The latest model silent fuel pump and heater can result in fuel pipe from the filter. Can reach the heater on and make sure they are secure so can not use cheaper soft plastic pipe can., intended for use in Inland waterways and Marine estuaries the results show fuel moves just a! 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