Engine will not idle . Turn off your machine and ensure everything is tightened properly. Once your pressure washer and water source are turned OFF and you are unable to disconnect your hoses from the pump and gun it is generally due to pressure that is still inside of the machine. Do not rush to contact the service center. My pressure washer dies when I release the trigger on the wand after spraying. Common Broken Pressure Washer Symptoms Reported By. If your pressure washer engine will not idle, it may be caused by an issue with the carburetor or unloader valve. Depress and hold the trigger on the spray wand to relieve any built-up pressure within the pump and continue to hold the trigger while switching to the "ON" position. 2. 1. Engine runs good at no-load but "bogs" when load is added. Clean or replace with proper size. Clean valve assembly or replace gun. 2. I think the problem is with the unloader valve. Nothing is worse than a pressure washer that starts up but won’t pressure wash properly. 3. Get shopping advice from experts, friends and the community! Learn how to troubleshoot this problem with our repair guide. Variable Nozzle is not in soap position or incorrect tip is installed. I managed to get a nozzle partially stuck in the wand compression end while the unit was running and under pressure. I took it apart and cleaned it. Turn water on. Cause: How to Fix: 17. Engine will not idle . 2. Senior Mechanic & Technician. Some of the pressure washer troubleshooting tips you'll learn about include what to do when you experience a drop in pressure, an inability to produce hot water, and excessive noise from the washer. If I keep the wand pressed it will stall and shut off the pressure washer. Some of the pressure washer troubleshooting tips you'll learn about include what to do when you experience a drop in pressure, an inability to produce hot water, and excessive noise from the washer. Water turned off. Squeeze until an uninterrupted flow of water streams from the nozzle. Turn water on. Leaks water. did u mean take the machine's hose off at the wand? However, th … read more. Richard. To relieve this pressure simply squeeze the trigger to release any water and then try disconnecting hoses again. The pressure washer shuts off when the piston can’t move freely, so you have to make sure if it has moving issues. Tightly secure all hoses and fittings. These tips covers a number of issues that can occur with your pressure washer and how to troubleshoot them. Attach garden hose between water supply and pressure washer. Last Updated on February 13, 2020. It starts okay on initial start up but pulls very hard after the washer has been used. Is your Snap-On pressure washer in need of repair?