Hyundai HYW4000P - Quick Release Nozzles; Nozzle Selection and Usage

Page Rev 7
HYW2500P_HYW3000P_HYW3100P_HYW3100P2_HYW4000P Combined user manual Rev 7.pdf 22 16/12/2015 11:43:51
10. TROUBLESHOOTING
10.1. If you are experiencing a problem that is not listed in this chart, or have
checked all the possible cause listed and you are still experiencing the
problem, contact Aftersales on 01646 687880.
10.2. Petrol engine trouble shooting.
Problem
Cause
Correction
Unit has following problems:
Failure to produce pressure, erratic
pressure, chattering, loss of
pressure, low water volume.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Low pressure spray tip installed.
Water inlet is blocked.
Inadequate water supply.
Inlet hose is kinked or leaking.
Clogged inlet hose screen.
Water supply is over 100°F (38°C).
High pressure hose is blocked or
leaks.
Spray gun leaks.
Spray tip is obstructed.
Pump is faulty.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Replace with high pressure spray tip.
Clear inlet.
Provide adequate water flow.
Straighten inlet hose, patch leak.
Check and clean inlet hose screen.
Provide cooler water supply.
Clear blocks in outlet hose.
Replace spray gun.
Clean spray tip.
Contact local service agent.
Detergent fails to mix with spray.
1.
2.
3.
Detergent siphoning tube is not
submerged.
Detergent siphoning tube/ filter is
clogged or cracked.
High pressure spray tip installed.
1.
2.
3.
Insert detergent siphoning tube into
detergent.
Clean or replace filter/ detergent
siphoning tube.
Replace with low pressure spray tip.
Engine lacks power.
1.
Dirty air filter.
1.
Replace air filter.
Engine will not start
1.
2.
3.
4.
Throttle lever on/off switch in OFF
position
No fuel in engine
Worn fouled or dirty spark plug
Pressure build up in pump
1.
2.
3.
4.
Turn throttle lever to ON position
Fill fuel tank or turn on fuel supply
Replace with factory recommended
spark plug
Squeeze trigger on spray lance
Units with Oil alert
1.
Engine not level or Engine oil level too
low
1. Pl
ace engine on level surface or fill
crankcases with SAE 15W40 oil.
Engine runs well at no load but “bogs”
down under full load
1.
Engine speed is too slow
1.
Adjust Throttle Lever back to full
throttle.
Engine will not start; or starts and runs
rough
1.
2.
3.
4.
5.
6.
7.
8.
Low oil level
Dirty air cleaner
Out of petrol
Stale petrol
Spark plug wire not connected to
spark plug Bad spark plug
Water in petrol
Over choking
1.
2.
3.
4.
5.
6.
7.
8.
Fill crankcase to proper level
Clean or replace air cleaner
Fill fuel tank
Drain gas tank, fill with fresh fuel
Connect wire to spark plug
Replace spark plug
Drain gas tank, fill with fresh fuel
Open choke fully and crank engine
Engine shuts down during operation
1.
2.
Out of petrol
Low oil level
1.
2.
Fill fuel tank
Fill crankcase with oil, to proper
Engine lacks power
1.
Dirty air filter
1.
Replace air filter
Engine “putts” or falters
1.
Choke is opened too soon
1. Move choke to halfway position until
engine runs smoothly * All engine
servicing to be taken to manufacturer’s
authorized service outlet
20
10.3. Pump troubleshooting.