Troubleshooting
Problem
Possible Cause
Corrective Action
1. The electrical connection on the
section valve is dirty or disconnected.
1. Turn the valve off manually. Disconnect
the electrical connector on the valve
and clean all leads, then connect it.
2. There is a blown fuse.
2. Check the fuses and replace them as
necessary.
3. There is a pinched hose.
3. Repair or replace the hose.
4. A section bypass is improperly
adjusted.
4. Adjust the section bypass.
5. There is a damaged section valve.
5. Contact your authorized Toro
distributor.
A section does not spray.
6. The electrical system is damaged.
6. Contact your authorized Toro
distributor.
A section does not turn off.
1. The section valve is damaged.
1. Disassemble the section valve; refer
to the section Cleaning the Sprayer
Valves. Inspect all the parts and
replace any that are damaged.
A section valve is leaking.
1. A seal or valve seat is worn or
damaged.
1. Disassemble the valve and replace
the seals using the Valve Repair
Kit; contact your authorized Toro
distributor.
The spray nozzle(s) drip when the section
switch(es) is shut off
1. Debris has accumulated between
the nozzle body and the check-valve
diaphragm.
1. Clean the nozzle body and diaphragm;
refer to Cleaning the Nozzle Body and
Check-Valve Diaphragm.
1. The boom bypass valve is improperly
adjusted.
1. Adjust the boom bypass valve.
2. There is an obstruction in the boom
valve body.
2. Remove the inlet and outlet
connections to the boom valve
and remove any obstructions.
A pressure drop occurs when you turn on
a boom.
3. A nozzle filter is damaged or clogged.
3. Remove and inspect all nozzles.
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