Troubleshooting - Landa PGDC5-3500 Operator's Manual

Maintenance

Troubleshooting

PROBLEM
Faulty pressure gauge
Insufficient water supply
Old, worn or incorrect spray nozzle
Belt slippage
Plumbing or hose leak
Faulty or mis-adjusted unloader
LOW valve
OPERATING
Worn packing in pump
Fouled or dirty inlet or discharge
PRESSURE
valves in pump
Worn inlet or discharge valves
Obstruction in spray nozzle
Leaking pressure control valve
Slow engine RPM
Pump sucking air
Valves sticking
Unloader valve seat faulty
Little or no fuel
Improper fuel or water in fuel
Clogged fuel line
Plugged fuel filter
Mis-adjusted burner air bands
BURNER
Little or no fuel pressure from fuel
WILL NOT
pump
LIGHT
Faulty burner transformer
30 amp circuit breaker tripped
Bridge rectifier defective
12 VDC relay defective
(continued on next Disconnected or short in electrical
page) wiring
18
POSSIBLE CAUSE
Landa PGDC Operator's Manual 8.916-596.0 - BF
SOLUTION
Install new gauge.
Use larger supply hose; clean filter at water inlet.
Match nozzle number to machine and/or replace with
new nozzle.
Tighten or replace; use correct belt.
Check plumbing system for leaks. Re-tape leaks with
teflon tape.
Adjust unloader for proper pressure. Install repair kit
when needed.
Install new packing kit.
Clean inlet and
discharge valves.
Replace with valve kit.
Remove obstruction.
Rebuild or replace as needed.
Set engine speed at proper specifications.
Check water supply and possibility of air seepage.
Check and clean or replace if necessary.
Check and replace if necessary.
Fill tank with fuel.
Drain fuel tank and fill with proper fuel.
Clean or replace.
Replace as needed.
Readjust air bands for clean burn.
Increase fuel pressure to specification and/or replace
fuel pump. Test with pressure gauge.
Test transformer for proper arc between contacts.
Replace as needed.
Push reset button
Test and replace
Test and replace
All wire contacts should be clean and tight. No
breaks in wire