Hydro Tek CPS Series User Manual

PROBLEM
PROBABLE CAUSE
(The most recurring probable cause is listed first)
REMEDY
(Repairs should only be made by a qualified technician)
Pumping System
Trigger gun leaks or will not shut off
Debris in gun valve assembly.
Clean valve assembly or replace gun.
Pump runs but has low spray pressure
Water turned off.
Nozzle is not installed, is plugged, or sized incorrectly
Inlet chemical injection valve is open without the end of the
pickup tube inserted into detergent.
Coil on hot water machines is obstructed.
Priming of pump after run dry.
Dual wand valve is open.
Leaky discharge hose or quick coupler. Water sprays out
around nozzle.
Inlet strainer clogged.
Belt slippage.
Unloader valve worn or improperly adjusted.
Air leak in inlet plumbing.
EZ start valve is leaking.
Turn water on.
Install nozzle, clean or replace with proper size
Close soap valve or submerge detergent pickup tube into solution.
Clean obstruction or scale deposits from coil with coil cleaner.
Crack open fitting on high-pressure outlet of pump.
Close dual wand valve and install high-pressure nozzle.
Replace hose, quick coupler, or o-ring in the quick coupler.
Clean and check more frequently.
Tighten or replace with correct belt
Install pressure gauge on pump head to adjust pressure.
Check valve seat on unloader.
Reseal fittings and inspect inlet hoses for air leaks.
Pump runs but there is erratic,
fluctuating pressure
Inadequate incoming water supply.
Stuck inlet or discharge valves.
Restricted inlet or air entering the inlet plumbing on pump.
Leaking High Pressure seals
Leaking Low Pressure seals
Remove hose to check for internal leaks. Increase water supply flow.
Clean out or replace worn valves.
Check fittings and hose for airtight seal, clean inlet strainer screen.
Replace seals.
Pressure feed the pump & replace seals if water leaks from pump head.
Excessive crankshaft play or loud,
knocking noise in pump
Broken or worn bearing or connecting rod in crankcase
Replace pump or bearing.
Oil leaking from pump
Loose drain plug or damaged seal
Locate point of oil leakage and replace damaged o-ring/seal.
Water is emitted from the chemical
pickup tube
Check-valve malfunctioning.
Repair or replace check-valve.
Inlet injection will not siphon chemical
Check valve in strainer clogged.
Chemical valve not open or clogged.
Strainer not submerged in solution.
Detergent hose cut or kinked.
Clean or replace valve. Rinse after each use.
Open chemical valve or clean.
Submerge strainer and replenish chemical.
Inspect hose, replace as necessary.
Downstream injector will not siphon
chemical
Brass knob on injector is closed.
Unit not in low-pressure mode.
Soap solution is too thick.
Detergent hose cut or kinked.
Strainer plugged or not submerged.
Internal injector parts corroded or stuck.
Outlet water temperature too high.
Open by turning counter clockwise.
Open dual wand or install low-pressure tip.
Dilute or use different solution.
Inspect hose, replace as required.
Check screen on strainer pickup tube.
Disassemble, clean or replace.
Use with cold water (150° Maximum)
Pressure relief relieving water
Un-loader failure/Coil overheating/Excessive pressure.
Turn machine off, wait a few minutes and restart. If problem continues,
take in for repair.
Burst disc relieving water
Excessive over-pressurizing and system spikes.
Take in for system check.
Heating / Heater System – Electric Heated (HE Series)
Heater will not engage.
Heater switch is not on.
Trigger not pulled.
Thermostat not turned up.
Defective pressure switch.
Defective transformer.
Defective flow switch.
Defective thermostat.
Faulty rocker switch.
Turn switch on. Press the reset switch.
Pull trigger. Heater should engage only when the trigger is pulled.
Adjust thermostat up.
Check for 24v output. If no voltage, replace.
Replace
Replace
Replace
Replace
Discharge water temperature too high.
Water restriction.
Worn spray nozzle.
Faulty thermostat or scale probe.
Clean or replace spray nozzle, de-scale coil, & remove obstructions.
Replace spray nozzle with proper size.
Clean thermostat probe or replace thermostat.
Discharge water temperature not
reaching maximum operating
temperature.
Inadequate power supply.
Faulty heater element.
Faulty heater control circuit.
Verify incoming power is not below required 440v when operating.
Check each heater element.
Check each control circuit to verify both heater banks are on.
Heater continues to engage even
when water is not being sprayed.
Faulty heater control circuit.
Turn machine off immediately. Replace flow, pressure, or temperature
switches.
TROUBLESHOOTING GUIDE 18

Hydro Tek CPS Series Specifications

General

Brand	Hydro Tek
Model	CPS Series
Category	Pressure Washer
Language	English