Automatic self-priming pump belongs to a commonly used household self-priming pump products, many users in the installation and use process will often reflect in the absence of water in the case of automatic self-priming pump will start frequently, and do not know the reason for self-priming pump frequent start, in fact, automatic self-priming pump frequent start is the main reason for that The following points for you to share the reasons for frequent start-up of automatic self-priming pump and automatic self-priming pump frequent start-up solutions for reference:

First, because the user installed self-priming pump inlet and outlet did not install a check valve resulting in the water quickly returned after the pump shutdown, after the outlet pressure dropped, so less than the preset pressure after the automatic self-priming pump will start again. The solution to this problem is to install a check valve at the outlet of the self-priming pump.

2. The self-priming pump will start automatically after the outlet pressure drops due to the faucet not being turned off properly or the water flowing out of other places. Checking the faucet closing state and finding out where there is leakage is the solution to the frequent start-up of the automatic self-priming pump. If the leakage is not serious, the HM type self-priming pump will not appear. Frequent start and stop.

3. Because of the long distance and high pressure needed, the pressure set on the pressure controller can not meet the requirements of use, it can be solved by opening the controller cover and then turning the adjusting knob in the middle clockwise upward to obtain higher breaking pressure.

4. Frequent start-up of automatic self-priming pump may also be due to the pressure tank above the self-priming pump without gas inside the reason, can be the pressure tank top of the gas nut unscrewed with the air cylinder to add gas inside the pressure tank can play a stabilizing role, the position of the air hole can refer to the automatic self-priming pump structure Figure. It should be noted that each kind of automatic self-priming pump can be used for pressurized tank filling function, such as ordinary home self-priming pump has no air hole, if necessary, can be used for pressurized tank filling.

Fifth, if it is used for a period of time before the fully automatic self-priming pump intact, suddenly appear frequent start-stop phenomenon then it is possible that the automatic switch is broken, you can replace an automatic switch to see if there is still the fault.