Troubleshooting

Tools Required: voltmeter, Phillip's screwdriver, pliers.

If your sprayer is unresponsive, there are a number of areas that may be the source of the problem. Watch the video below to learn about common issues and the steps required to resolve them.

STEP 1: Check the battery.

• Insert a charged, functional battery into the sprayer.
• If you don't have a spare functional battery, press the indicator button on your battery. If no LED lights appear or the lights are red, the battery must be replaced.
• A voltmeter can be used to check the battery in question; turn your voltmeter to 200V DC. Hold the positive electrode on the positive battery terminal and hold the negative electrode to the negative battery terminal. It should read close to 18V. If thee is a low or zero reading, the battery must be replaced. 

STEP 2: Check the pressure dial/rocker switch.

• For dual-pressure units: unscrew the cover plate and set aside. Unscrew the strain relief fitting. Using pliers, disconnect the spade fitting from the power switch and move to the neighboring extra set of wire contacts. Test the sprayer.
• For variable-pressure units: if the dial rotates continuously without a stopping point, replace the dial.

STEP 3: Check the microswitch.

• Locate the microswitch housing (shaped like the letter "P") at the bottom of the pump. Remove the top and bottom screw from the housing to reveal the microswitch.
  
• Using pliers, remove the connection that sits furthest away from the pump. Do not pull on the wire; squeezing the tab while pulling on the connector will release the pin and it should come off with ease.
• Insert a battery into the sprayer and turn the unit on. Bypass the microswitch by touching the disconnected terminal to the terminal that is still connected to the pump. Note: you may need to pull down the see-through rubber insulators to ensure metal-to-metal connection.
• If this test causes the pump to turn on, you have a defective microswitch. If this test does not activate the pump and you know your battery to be functional, you likely need a replacement circuit board.
  

Tools Required: Phillip's head screwdriver, flathead screwdriver.

STEP 1: Check for leaks from the spray gun assembly.

STEP 2: Check for leaks from the hose and pump.

• Unscrew the cover plate and remove. With water in the sprayer, start spraying and look for leaks.
• If the sprayer is leaking from where the hose connects to the pump, tighten the hose clamp.
• If you notice leaking from the pump diaphragm, replace the pump.

STEP 3: Make changes to the adjustment screw.

• Stand the sprayer upright and fill the sprayer with a bit of water. Turn it on.
• Locate the microswitch house (shaped like the letter "P") at the bottom of the pump.
• Use a Phillip's head screwdriver to tighten or loosen the adjustment screw (located between the two screws holding the microswitch housing in place) up to one full turn.
• Activate the sprayer's trigger to test the response. Keep making adjustments until the trigger performs appropriately.
  

STEP 4: Check the pressure dial.

• If you have a variable-pressure unit, try turning the power dial. If it rotates continuously, the dial will have to be replaced.

Tools Required: wrench, Phillip's head screwdriver, flat-head screwdriver.

STEP 1: Clean the interior inlet filter.

• With the sprayer turned off and battery removed, set aside the tank lid and intake filter.
• Locate the inlet filter near the bottom of the tank. Gently twist and pull the inlet filter to remove from the tank.
• Check the inlet filter for any debris or buildup. To clean the inlet filter, rinse it with fresh water until all the buildup is cleared. Then, wipe it with a clean cloth.

STEP 2: If the sprayer is new or has not been used in a while, back feed water.

• With the sprayer turned off, remove the spray gun from the hose while leaving the other end of the hose attached to the sprayer.
• Hold the end of the hose pointing upward in a container of fresh water and repeatedly bend the hose to push any air out while taking water in.
• Once around three (3) inches of water has entered the hose, remove it from the water and reattach the spray gun.
• Fill the sprayer tank with a gallon of clean water, turn the sprayer on, and rapidly squeeze and release the spray gun trigger.

STEP 3: Check the entire inlet filter.

• Remove the cover plate using the Phillip's head screwdriver.
• Taking the flat-head screwdriver, loosen the hose clamp securing the jumper hose to the inlet filter.
• Disconnect the jumper hose and hose clamp from the inlet filter. You may need to remove the screws securing the pump in place to fully detach the jumper hose.
  
• Hold the inlet filter from inside the sprayer tank and turn the exterior part counterclockwise until the two parts separate. It may be helpful to use a wrench to turn the inlet filter.
• Check all parts of the inlet filter for debris and clean if necessary.

Tools Required: garden hose, fresh water.

Sometimes, after a period of storage, your sprayer may need help priming. Below are two easy methods to get your sprayer up and running:

METHOD 1

STEP 1: Access the inside of the sprayer tank.

• With the sprayer turned off and battery removed, set aside the tank lid and intake filter.

STEP 2: Locate the inlet filter.

• Reach inside the sprayer tank and locte the inlet filter near the bottom.
• Gently wiggle the inlet filter and pry it off of the pump barb connection. Remove the inlet filter from the sprayer tank.
• This would be a good time to clean off the inlet filter. Simply wash the mesh screen with fresh water and wipe with a clean cloth.

STEP 3: Direct water into the pump barb.

• Taking a hose, bring it inside the sprayer tank to the pump barb connection.
• Turn the water on and direct a strong stream of fresh water into the barb.

STEP 4: Replace the intake filter and tank lid.

STEP 5: Test the sprayer.

METHOD 2

STEP 1: Remove the spray gun.

• Keeping the hose attached to the sprayer tank, twist the spray gun and remove it from the treaded hose fitting.

STEP 2:Back feed water into the hose.

• Submerge the end of the hose into a reservoir of clean water.
• Bend the hose around in the reservoir to allow water to enter up through the hose.

STEP 3: Reattach the spray gun.

• Without letting the water escape from the hose, bring the spray gun to the threaded connection and secure it onto the hose.

STEP 4: Test the sprayer.

• Partially fill the sprayer with water.
• Turn the sprayer on and rapidly activate the trigger on the spray gun.

STEP 1: For variable-pressure sprayers.

• Check if the pressure dial is rotating continuously with no stopping point. If so, the dial and circuit board must be replaced.
• If the dial is functioning normally, replace the circuit board only.

STEP 2: For dual-pressure sprayers.

• Replace the circuit board.

STEP 1: Check the trigger for leaks.

STEP 2: Check the adjustment screw.

• Unscrew the cover plate and set aside.
• Locate the microswitch housing (shaped like the letter "P") at the bottom of the pump.
• Using a Phillip's head screwdriver, turn the adjustment screw (located between the two screws securing the microswitch housing in place) up to a full turn.
• Keep making small adjustments until the trigger behaves normally.

Tools Required: knife, Phllip's head screwdriver, pliers.

Replacement circuit boards can be purchased online here or with your preferred chemical/tool distributor.

• Make sure the sprayer is off and the battery has been removed. Taking your screwdriver, unscrew the cover plate. Loosen the strain relief fitting and set the cover plate aside.
• Unscrew the battery holster and detach it from the sprayer tank. Using your fingers or a pair of pliers, gently remove the wires connected to the battery holster.
• To access the wires underneath the pump. loosen the screws securing the pump to the tank.
• Using the knife, carefully slice the protective tape surrounding the pump-to-circuit board connection. Disconnect the circuit board from the diaphragm pump and slide the wires our from under the pump.
• Disconnect the circuit board from the power dial in the same fashion by slicing the protective tape.
• Follow the previous steps in the reverse order to connect the replacement circuit board. Connect the power dial, connect the pump, and slide the wires under. Secure the diaphragm pump back to the sprayer tank.
• Attach the wires to the back of the battery holster while taking note of the color of the wires. Red = positive; black = negative.
• Place the battery back into position and secure it.
• Insert a battery into the holster and test the sprayer. If the sprayer starts up normally, you may close it up.

Tools Required: Phllip's head screwdriver, pliers (optional).

Replacement microswitches can be purchased online here or with your preferred chemical/tool distributor.

• With the battery taken our of your sprayer, take your screwdriver, unscrew the cover plate, loosen the strain relief fitting, and set the cover aside.
• Locate the microswitch housing (it looks like the letter "P") at the bottom of the pump. Remove the top and bottom screws from the housing to reveal the microswitch.
• Take the microswitch out of the pump. Using pliers or your fingers, gently disconnect the spade connectors from the old microswitch. Note: make sure to remove using the retaining tabs and not by pulling on the wire. Attach the connectors to the replacement microswitch.
• Place the replacement microswitch into its slot and secure the screws back onto the housing.
• Insert a battery into the battery holster and turn your sprayer on. Test the sprayer. If the sprayer is functional, close it up and secure the cover plate.

Tools Required: Phllip's head screwdriver, flat-head screwdriver, hot water.

Replacement hoses can be purchased online here or with your preferred chemical/tool distributor.

• With the battery taken our of your sprayer, take your screwdriver, unscrew the cover plate, loosen the strain relief fitting, and set the cover aside.
• Locate the hose clamp near the sprayer pump and using the flat-head screwdriver, loosen the clamp.
• Pry the hose off of the pump connection and slide it out from the cover plate. Be sure not to misplace the hose clamp.
• Take the replacement hose, moving the strain relief gasket if necessary. and insert it through the cover plate. Slide the hose clamp onto the hose.
• Dip the end of the hose into hot water and wait 10-15 seconds to allow the hose to expand. This softens the hose material and makes installation easier.
• Bring the end of the hose to the pump connection and slip it on. Slide the hose clamp down until it's over the hose-to-pump connection. Tighten with the flat-head screwdriver until the hose clamp is secure.
• Remove the spray gun from the old hose and connect it to the end of the replacement hose.
• Fill the tank with some water and place a battery into the battery holster. Turn the sprayer on and test the replacement hose by spraying, being aware of any leaks around the pump and ends of the hose.
• If the sprayer if functional, replace the cover plate and secure with screws. If necessary, insert the circuit board back into its slot on the cover plate first.

Tools Required: Phllip's head screwdriver, flat-head screwdriver, hot water, knife.

Replacement pumps can be purchased online here or with your preferred chemical/tool distributor.

• With the battery taken our of your sprayer, take your screwdriver, unscrew the cover plate, loosen the strain relief fitting, and set the cover aside.
• Locate the hose clamps securing the hoses to the pump barbs. Using a flat-head screwdriver, loosen both of the clamps. Gently maneuver the outlet hose off of the pump barb and remove it. The jumper hose will be detached later.
• At the point, you may want to detach the circuit board from the cover plate to give yourself more room to work. Using a knife, slice any protective tape around the connection and disconnect the circuit board using your fingers.
• Take the Phillip's head screwdriver and loosen the four screws holding the pump to the tank. You should find the pump-to-circuit board connection underneath the pump. Again, take your knife and slice the protective tape. Then, use your fingers to disconnect the circuit board from the pump.
• Firmly grip the pump and wriggle it off of the jumper hose.
• Connect the replacement pump by following the above directions in reverse: slide the jumper hose onto the pump barb, connect the circuit board, and secure the replacement pump to the tank.
• To re-connect the outlet hose, it may be helpful to dip the end of the hose in a cup of hot water for 10-15 seconds. This allows the material to soften. Slide the hose clamp onto the outlet hose and slip it back onto the pump barb.
• Tighten both hose clamps over the pump barbs with the flat-head screwdriver.
• With a little bit of water in the tank, place a battery into the battery holster and turn your sprayer on to test it. Take note of any leaking around the pump connections. If there is leaking present, tighten the hose clamps further.
• If everything is working properly, slide the circuit board back into its slot on the cover plate and secure the cover plate back onto the tank.

Tools Required: Phllip's head screwdriver, flat-head screwdriver, hot water, pliers (optional).

Replacement cover plates can be purchased online here or with your preferred chemical/tool distributor.

• With the battery taken our of your sprayer, take your screwdriver, unscrew the cover plate, loosen the strain relief fitting, and set the cover aside.
• Locate the hose clamp by the pump and taking the flat-head screwdriver, loosen the hose clamp. Gently pry the end of the hose off of the pump connection.
• Using pliers or your fingers, disconnect the circuit board connections from the dial. The connections should come off easily when squeezing the translucent clips at the connection.
• Slide the hose through the new cover plate with the replacement pressure dial and slide the hose clamp onto the hose.
• Dip the end of the hose into hot water for 10-15 seconds to allow the hose material to expand.
• Bring the end of the hose to the pump barb and slip it on. Slide the hose clamp down until it's over the hose-to-pump connection. Tighten the hose clamp using the flat-head screwdriver until the clamp is secure.
• Bring the circuit board connections to the replacement pressure dial and clip in place.
• Place a battery into the battery holster and turn the sprayer on. Ensure the sprayer operates on all pressure settings by twisting the pressure dial.
• If the sprayer is functional, replace the cover plate and secure with screws.

Tools Required: Phllip's head screwdriver, flat-head screwdriver, pliers (optional).

Replacement power switches can be purchased online here or with your preferred chemical/tool distributor.

• With the battery taken our of your sprayer, take your screwdriver, unscrew the cover plate, loosen the strain relief fitting, and set the cover aside.
• Taking the pliers or using your fingers, gently remove the circuit board connections from the power switch. The connections should come off easily when squeezing the translucent clips.
• Using a flat-head screwdriver, hold down on the tabs on the power switch and pop it out from the sprayer housing.
• Carefully, push the replacement pressure switch in its place.
• Reconnect the red, white, and black wires of the circuit board to the new power switch.
• Place a battery in the battery holster and turn the sprayer on. Ensure the sprayer operates on both pressure settings by flipping the power switch.
• Bring the circuit board connections to the replacement pressure dial and clip in place.
• Place a battery into the battery holster and turn the sprayer on. Ensure the sprayer operates on all pressure settings by twisting the pressure dial.
• If the sprayer is functional, replace the cover plate and secure with screws.

Tools Required: Phllip's head screwdriver.

Replacement battery covers can be purchased online here or with your preferred chemical/tool distributor.

• Using the screwdriver, unscrew and remove the bumpers below the battery door.
• Open the battery door and remove it by holding it upright and pushing down while pulling out.
• Slide the pin out from the spring and old battery door.
• Place the spring into the slots on the replacement battery door. Slide the pin through the spring and replacement battery door.
• Place the battery door over the battery holster and snap it back into place by pressing down.
• Push the spring hinge under and behind the green hinge.
• Close the battery door and clip in place.
• Place the bumpers back into their slots and secure.

Tools Required: Phllip's head screwdriver, wrench.

Replacement spray gun seals can be purchased online here or with your preferred chemical/tool distributor.

• Using the screwdriver, unscrew and remove the exterior housing on your spray gun.
• Using the wrench, loosen the seal nut. Once it's loose enough, the seal nut can be removed using your fingers.
• Assemble the replacement spray gun seal kit by sliding the spring into the smaller end of the sealing component. Then, place the other end of the spring into the seal nut.
• Place the spring into the slots on the replacement battery door. Slide the pin through the spring and replacement battery door. Once the seal kit has been assembled, place it into the trigger where the original was. Tighten the seal nut into the assembly with your fingers and the wrench.
• Place the exterior housing back on and secure in place using the screwdriver.