Question about Garden
I removed and cleaned the valve at the pump end. I notice that there is a reed valve there and am wondering how to confirm if it is working. I disconnected it from the board but no help.
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Posted on Jan 02, 2017
Most pressure washers when their gun is released, the machine stops automaticaly. This is done ny means of a control valve. When the gun is closed...pressure is built and the control valve moves and switches a micro switch off. In your case the micro switch is still closed in off position. Now this happens if a machine is left and stored with pressure in it., This control valve could get jammed and leaving the micro switch in off position. It could also stay in off position by sticking, due to incorrect chemical.
So the control valve or even called spill valve, must be renewed.
Sometimes a little lubrication with the right type of silicon grease will get the control valve working again. This job is sometimes delicate and better done by a qualified technician.
Posted on Apr 12, 2009
In general all pressure washers have a control valve. This is sometimes refered to as the Spill Valve. When the trigger is pulled, the spill valve is in normal position. When the trigger is released, the spill valve compresses to let water circulate from its bottom part. If when the trigger is pulled and the bottom part of the spill valve does not close, then water keeps on circulating and hence no pressure. In this case change the spill valve with a new one. Also there could be a fault in the sucktion valves. If the sucktion vaves do not close, also water keeps on circulating. One also can examine the delivery valves. If these are not closing, then water is being sucked while delivering. Hence no pressure. Another cause but very rare, is that the swash plate that is pushing the pistons got loose. The electric motor will be turning, but the pistons stay in the same position.
I mentioned many causes, but usualy it is the spill valve. If with a new spill valve, there is still no pressure....then you must tackle the sucktion and then the delivery valves.
I wish to add that I assume that you have the correct lance and correct nozzel size. A worn out nozzel, will result in low prssure too.
Posted on Apr 22, 2009
Could be just a faulty capacitor that helps the motor to start. You will find this next to the motor if you remove the top cover.
Posted on Apr 21, 2010
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