DeWalt DPH3100 - Manual (Page 18)

18
English
coDe PossIBLe cause PossIBLe soLutIon
9 Spray wand not in high pressure. See spray Wand nozzles under Operation.
10 Low water supply. Water supply must be at least 5 GPM @ 20 PSI (138 kPa).
11 Leak at high-pressure hose fitting. Repair leak. Apply sealant tape if necessary.
12 Nozzle obstructed. See nozzle cleaning under Maintenance.
13 Water filter screen clogged. Remove and clean filter.
14 Air in hose. Turn off the engine, then the water source. Disconnect the
water source from the pump inlet and turn the water source
on to remove all air from the hose. When there is a steady
stream of water present, turn water source off. Recon nect
water source to pump inlet and turn on wa ter source. Squeeze
trigger to re move re main ing air.
15 Choke lever in the CHOKE position. Move choke to the NO CHOKE po si tion.
16 High-pressure hose is too long. Use high-pressure hose under 100 feet (30.48 m). Lengthen water
supply hose instead of high-pressure hose.
17 Spray wand not in low pressure. See spray Wand nozzles under Operation.
18 Chemical filter clogged. Clean filter.
19 Chemical screen not in cleaning solution. Make sure end of chemical hose is fully submerged into cleaning
solution.
20 Chemical too thick. Dilute chemical. Chemical should be the same consistency as water.
21 Worn seal or packing. Have parts cleaned or replaced by authorized service center.
22 Chemical build up in chemical injector. Have replaced by an authorized service center.
23 Worn or obstructed valves. Have replaced by authorized service center.
24 Worn unloader piston. Have replaced by authorized service center.
( Troubleshooting Codes cont.)