John Deere ac-1500eh User Manual

John Deere Operator's Manual   

 

 

 

 

 

 

 

21

SYMPTOM 

 

 

 

PROBABLE CAUSE 

 

 

REMEDY 

Pump motor will not run.  

 

Circuit overload. 

 

 

Check wall breaker or fuse. 

 

 

 

 

 

 

 

 

 

 

 

GFCI tripped.   

 

 

Reset.  

 

 

 

 

 

 

 

 

 

 

 

Motor overload.  

 

 

Reset thermal overload button on  

 

 

 

 

 

 

 

 

 

 

pump motor or inside electrical    

 

 

 

 

 

 

 

 

 

 

control panel. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Auto Start/Stop Option in use.   

Point gun in a safe direction an   

 

 

 

 

 

 

 

 

 

 

squeeze trigger.  

No discharge at nozzle when   

Inadequate water supply. 

 

Ensure hose is 3/4" diameter and 

trigger mechanism is squeezed.  

 

 

 

 

 

incoming water supply is turned on. 

 

 

 

 

 

 

Low or fluctuating pressure. 

 

Kink in water inlet hose.  

 

Remove kink. 

  

 

 

 

 

 

Kink in high pressure discharge hose.  Replace kinked high pressure hose. 

 

 

 

 

 

 

Water inlet screen obstructed.   

Remove screen, clean or replace. 

 

 

 

 

 

 

 

Pump sucking air.  (Prime eliminated)  Tighten all water intake connections 

 

 

 

 

 

 

 

 

 

 

Eliminate leaks in intake line. 

 

 

 

 

 

 

Adjustable Grip on Dual Lance   

Turn grip 

counterclockwise to move   

 

 

 

 

 

is not in high pressure mode.   

to high pressure. 

 

 

 

 

 

 

 

 

 

 

 

Obstructed or worn spray nozzle. 

Remove, clean or replace. 

 

 

 

 

 

 

Damaged or obstructed valve assy. 

Remove, clean or replace. 

 

 

 

 

 

on pump. 

 

 

 

 

 

 

Pump packings worn.   

 

Replace packings. 

 

 

 

 

 

 

Unloader/Bypass valve not operating 

Repair or replace. 

 

 

 

 

 

correctly. 

 

 

 

 

 

 

Scale build-up in heat exchanger coil.  Descale coil. 

Water is leaking from Heat DumpValve.  Water inlet temperature is too high. 

Incoming water temperature must be  

 

 

 

 

 

 

 

 

 

 

less than 125°. 

 

 

 

 

 

 

Water temperature is too high.   

Do not allow unit to operate in    

 

 

 

 

 

 

 

 

 

 

bypass mode (with the trigger gun  

 

 

 

 

 

 

 

 

 

 

closed) for more than three minutes.   

 

 

 

 

 

 

Defective valve.  

 

 

Replace. 

Oil appears milky or foamy. 

 

Water in oil. 

 

 

 

Change pump oil.  Fill to proper   

 

 

 

 

 

 

 

 

 

 

level. 

Oil leaking from unit. 

 

 

Worn seals or o-rings.   

 

Contact Customer Service. 

Detergent will not siphon . 

 

Detergent strainer is not completely 

Check, submerge if necessary. 

 

 

 

 

 

submerged in detergent solution. 

 

 

 

 

 

 

Detergent strainer obstructed.   

Inspect, clean or replace.  

 

 

 

 

 

 

Detergent hose cut, obstructed or 

Inspect, clean or replace. 

 

 

 

 

 

kinked. 

 

 

 

 

 

 

Detergent adjusting knob turned to  

Open adjusting knob.  Refer to  

 

 

 

 

 

closed position.  

 

 

"Cleaning with Detergents"  pg. 18.