Master Manufacturing MASTER GARDNER - Manual (Page 5)

TROUBLE SHOOTING
Pump will not turn on:
1. Ensure the power switch or remote switch is in the on position (the I position is on and the O position is
off).
2. Ensure the battery is fully charged. Refer to SETUP: charging the battery.
3. Ensure all battery connections are tight.

Confirm the pump is hooked up to the battery source.

Confirm battery connections are made and tight.

Inspect connections on the back of the switch and be sure they are attached.
4. Inspect the fuse located under the back panel.

Drain any chemical or water that may still exist in the sprayer. Rinse the tank with clean water.
Turn the sprayer upside down and locate an inline fuse holder on the wiring harness under the
battery cover on the back of the sprayer. Take the 10 amp fuse out of its holder and while
holding the fuse up to the light ensure there are no breaks in the fuse wire. If you can see any
gaps, the fuse will need to be replaced. (If fuse is discharged make sure all of the connections
from the battery and remote switch are hooked up correctly before replacing the fuse)
5. Check to make sure the pump has power.

If possible take a volt meter and make sure power is getting to the pump. If the pump is not
getting power, inspect all connections to find out where power is lost.

Check the pressure switch. You can check if your pressure switch is working by taking the 2
leads going into your pressure switch and jumping them together. You can do this with a spare
wire or piece of metal. If the pump turns on you have a bad pressure switch and will need a new
pump.
 If at this point the pump doesn’t turn on try hooking the pump up to a secondary 12v battery
source (such as a car or ATV battery) to see if the pump turns on. If the pump turns on, there is
either a bad battery or a bad connection preventing the full 12 volts to get to your pump.
Pump will not prime:
1. Inspect to make sure water is above inlet hole
2. Inspect hoses to be sure of no kinks or blockage.
3. Put warm water through the inlet line to see if it can break up any blockage in the check-valves. (repeat
this process for a couple minutes to make sure it gets all of the substance out)
Pump cycles on and off:
1. Adjust the spray tip of your wand to relieve some pressure on the pump. Reducing the cycling you’re
your pump makes will extend the life of the pump and pressure switch.
WARRANTY PARTS SERVICE
Products sold shall be warranted from defects in workmanship and material when used within the service and
scope for which they were designed for a period of one year from date of purchase. Contact Master Manufacturing
for replacements parts or warranty work at (800) 864-1649. Do not return product to your distributor/dealer.
Please have your original sales receipt or other proof of purchase date when requesting any warranty work. To
ensure the correct parts are acquired always provide the model number of your sprayer/attachment and the part
number and description obtained from the illustrated parts breakdown in this manual.