Landa SDHW Series, Руководство оператора

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14
Maintenance
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Faulty pressure gauge Install new gauge.
Insufficient water supply
Use larger supply hose; clean filter at water inlet
and at bottom of float tank.
Old, worn or incorrect spray nozzle
Match nozzle number to machine and/or replace
with new nozzle.
Belt slippage Tighten or replace; use correct belt.
Plumbing
or hose leak
Check plumbing system for leaks.
Retape leaks with teflon tape.
Faulty or misadjusted unloader valve Adjust unloader for proper pressure.
Worn packing in pump Call local Landa Dealer.
Fouled or dirty inlet or discharge valves in
pump
Clean inlet and discharge valves.
Worn inlet or discharge valves Call local Landa Dealer.
Obstruction in spray nozzle Remove obstruction.
Leaking pressure steam valve Replace as needed.
Slow engine RPM
Set engine speed at proper specifications. See
serial plate.
BURNER WILL
NOT LIGHT
Little or no fuel Fill tank with fuel.
Improper fuel or water in fuel Drain fuel tank and fill with proper fuel.
Clogged fuel line Clean or replace.
Plugged fuel filter Replace as needed.
Misadjusted burner air bands Readjust air bands for clean burn.
Little or no fuel pressure from fuel pump Increase fuel pressure to specification
and/or replace fuel pump.
Faulty burner
transformer
Test transformer for proper arc between
contacts. Replace as needed.
Disconnected or short
in electrical wiring
All wire contacts should be clean and tight. No
breaks in wire.
Flex coupling slipping on fuel pump shaft
or burner motor shaft
Replace if needed.
On-Off burner switch defective
Check for electrical current reaching burner
assembly with burner switch on.
Heavy sooting on coil and burner can
cause interruption of air flow and
shorting of electrodes
Clean as required.
Improper electrode setting Check and reset electrodes.
Fuel not reaching
combustion chamber
Check fuel pump for proper flow. Check fuel
solenoid and flow switch. Call Landa Dealer.
Clogged burner nozzle Replace.
Thermostat faulty or slow engine speed Increase engine RPM to increase voltage.
Flow switch malfunction
Remove, test for continuity and replace as
needed.
Fuel solenoid malfunction Replace if needed.
(For parts and information, call your Landa Dealer)
Landa SDHW6-35824 E/M Operator’s Manual 8.913-958.0 - AC