If the heater doesn't get really warm anymore, that's more than annoying and uncomfortable. In the long run, the lack of heat can also encourage the formation of mold. Therefore, quick action is required. With our step-by-step instructions, it is quick and easy to bleed the oil line and thus to restore the full heating output.
preparation
If it is unclear whether the heating tape has slackened due to air in the pipe, the tank filling should be checked first. If this is empty or not filled enough, difficulties can arise when sucking in the heating oil.
Then the individual elements of the oil pump should be checked. If damage, leaks or loose lines are found here, qualified personnel must be employed
Bleeding the line, on the other hand, is quick and easy if the appropriate steps are followed.
instructions
Bleeding the oil line is also possible for laypeople without any problems, but requires the right procedure and the right utensils.
Required utensils
- Pipe wrench or wrench
- cloth
- bucket
- rubber gloves
- possibly a large diameter hose or flexible pipe
Step by step
Once these aids and tools are ready, bleeding can begin. The following steps are required for this:
- Turn off the heating. Otherwise, working on the heater could become dangerous.
- Find the vent valve. This is a so-called grease nipple that is remotely reminiscent of a screw.
- A bucket or shallow tub is placed under the vent valve, as not only air but also oil will escape during venting. This can splash, so it can make sense to put an additional cover under the bucket or tub.
- The valve is opened easily with a wrench or a small pipe wrench. More than one to a maximum of two turns should not be performed. Otherwise the valve may fall out.
- Press the reset button. This will start a heating cycle. During this process, the air is forced out of the pipe. However, it can also happen that heating oil drips out or even splashes out. Therefore, venting should only be carried out with appropriate precautionary measures and under supervision.
- If not all of the air has been removed from the line during venting, another heating cycle must be started and the reset button must be operated again. Due to a lock that is often set, it can only be activated once or twice if necessary. If this is the case, the button must be held down until the heating system starts up again. The lock can be overridden by holding it for a longer period of time.
- Only when the hissing sound from the line can no longer be heard can the valve be closed again for venting. It is important to ensure that it is turned firmly but not over-turned. Failure to do so could damage the coil and require replacement. On the one hand, this is very complex and, on the other hand, very expensive.
Tip: If a bucket, tub or bowl cannot fit under the valve, a flexible pipe or hose can be held over the valve. The air can still be removed, but this will prevent oil from being dispersed in the area.
Prevent
Air in the pipe can be prevented by taking appropriate care of the system. It should therefore always be ensured that the suction hose is kept close to the bottom of the tank and that the tank is filled so that no air can be sucked in.
Regular checks also ensure that the lines remain free of air bubbles and that a uniform heating result can be achieved. In addition, the regular controls mean that the effort involved in venting can be kept very low, so that there are usually only a few air bubbles in the oil or in the line.
