Aaladin pressure washer troubleshooting

Each owner of a pressure washer faces the question of maintenance or repair of the device – the reason can be both: natural wear of component parts and mechanisms, and non-observance of rules of operation. There are a list of the most common defects and the main reasons of them in the table – it will help you to diagnose the problem and fix it yourself.

Aaladin MTA-2210 series pressure washer troubleshooting

Burner motor does not operate Overload protection tripped Allow motor to cool. Push reset button.
No power reaching burner Check power cord, circuit breaker, switches, internal wiring and wiring terminals. Re-establish power by replacing bad switch, etc
Motor bearings “frozen” Free motor shaft and lubricate.
Replace motor if necessary
Fuel pump “frozen” Replace fuel pump – keep water out of fiiel supply
Defective burner motor Replace or repair motor
Burner motor runs but no ignition No Fuel Replenish fuel supply
Weak or defective ignition transformer-weak spark or no spark Replace transformer
Electrodes out of proper adjustment – no spark Readjust electrodes. Replace electrode assembly if damaged or if ceramic insulation is cracked.
Poor fuel atomization Check for loose or fouled fuel nozzle, dirty or clogged fuel filter or fuel pump screen. Clean or replace fouled components.
Inadequate fuel pressure – low pump setting or air leak in the fuel pump suction plumbing Contact service person.
Very cold weather causes jelling of heavier fuel oils Switch to lighter oil; kerosene or No. 1 heating oil
Excessive combustion air Close air band until burner ignites; then readjust for cleanest bum, and tighten.
Burner motor runs, but no fuel at burner nozzle or no fuel atomization No fuel Replenish fuel supply
Clogged fuel nozzle Clean or replace nozzle
Clogged fuel filter Clean or adjust filter
Restricted fuel line Locate and eliminate restriction
Air leak in fuel suction line Locate and eliminate air leak
Clogged or inoperative fuel solenoid Clean or replace if faulty.
Burner starts but flame blows away Excessive combustion air Close air band until burner will stay lit; then adjust for cleanest bum and tighten
Poor fuel atomization Check for loose or clogged nozzle, dirty filter or low fuel pump pressure, correct as needed.
Burner motor stops after a few minutes of operation Low line voltage causing overload to trip Use heavier supply wiring, larger circuit or eliminate other loads on circuit.
Defective burner motor Repair or replace motor.
Poor burn, smokey bum or foul, pungent odor Insufficient combustion air Open air adjustment band until bum improves.
Fuel nozzle partially clogged, fouled, loose or worn Clean, tighten or replace fuel nozzle as needed. Contact service person.
Low fuel pressure, poor fuel atomization Locate and eliminate air leak.
Air leak in fuel pump suction plumbing (inlet side), sometimes indicated by bubbles in fuel return hose. Check all fittings, hoses, filters, pump filter cover.
Switch to lighter oil, kerosene or No. 1 heating oil.
Very cold weather causes jellying of heavier oils Remove burner from heating coil to check for damage to combustion basket. If damaged, order new chamber.
Poor or no fuel shut off in fuel pump causing accumulation of unburned fuel Replace fuel pump, check combustion chamber, replace if necessary, check fuel solenoid, replace if faulty. (
Low temperature output Partially clogged fuel nozzle Clean or replace fuel nozzle.
Significant scale deposits in heating coil Conduct back pressure test to determine extent of scaling
Significant soot deposits on heating coil De-soot the coil as instructed in
Very low tap water supply temperatures Contact service person
Excessive temperature output Very high tap water supply temperatures
Oversized fuel nozzle Consult dealer for correct fuel nozzle
Fuel filter clogs often Very dirty fuel Use clean fuel, clean storage tanks, clean filler cans, clean funnel.
Fuel pump “freezes” or locks up Water in fuel supply causes corrosion in fuel pump Use cleaner fuel supply, change filter more often, eliminate water from fuel storage tank.
Frequent failure of ignition transformer Too much exposure to moisture, rain, wash spray, etc. Avoid leaving washer out in wet weather, keep wash spray away from machine.


AALADIN 8000 SERIES pressure washer troubleshooting

Problem Cause Solution
Low Pressure Worn or oversized spray nozzle. Replace worn nozzle.
Clogged water and/or detergent inlet strainer. Clean or replace fouled strainers.
Out of detergent – pump sucking air through detergent line. Restore detergent supply or close detergent shut off valve.
Air leak in inlet plumbing. Locate air leak. Reseal connection or replace damaged part.
Belt slipping. Tighten or replace if damaged.
Dirt or foreign particle in the valve assembly. Examine the valve assembly and remove any dirt or particles.
Worn or damaged inlet or discharge valve. Replace worn valves.
Rough operation with loss of pressure Restricted inlet plumbing or air leak in inlet plumbing. Ensure adequate water supply and supply hose. Repair inlet fittings.
Damaged pump parts. Replace any damaged pump parts. Clean out any foreign particles.
Water leakage – intake manifold or crankcase Worn manifold seals or condensation inside crankcase. Replace seals. Change oil at regular intervals.
Loud knocking, noisy operation Inadequate water supply to pump creating “vacuum knock”. Check for restricted inlet and adequate tap water supply.
Loose pulley. Check key and tighten set screw.
Worn or broken bearing(s). Replace bearing(s) as needed.
Oil leaks Worn crankcase seals, crankcase cover seal, or drain plug seal. Replace seals.
Excessive pump shaft play Worn and loose bearings. Replace bearings. Check bearing seals, spacers, and retainers, replacing any worn parts.
Irregular spray pattern Worn or partially clogged spray nozzle. Clean or replace nozzle.
Washer electrically dead No power to the machine. Check circuit breaker. Check for defective electrical outlet.’
Defective power cord. Repair or replace bad cord.
Defective main on/off switch. Test switch(es) and replace if defective.
Faulty or loose wiring. Check switch and motor wiring for solid connections.
GFCI Tripped. DANGER-do not operate, fault exists. Contact electrician or power company.
Power supply circuit breaker trips often and will not stay “on” Short circuit in washer or elsewhere on the circuit. Check washer (and other loads on the same circuit) for faulty wiring, loose wire, etc.
Undersized circuit being used, or too much total load on the circuit Put the washer on a larger circuit or remove other loads from the existing circuit.
Supply voltage is low. 120V units require a minimum of 108V. 220V units require 208V. Check line voltage and connect washer to adequate voltage supply.
Undersized extension cord causing under-voltage to the washer. Contact electrician or supplier for proper size and length.
Faulty circuit breaker. Replace breaker.
Washer fails to draw detergent Suction tube not below liquid surface. Completely submerge suction tube and strainer in detergent solution.
Clogged or damaged suction strainer. Clean or replace strainer.
Clogged metering valve. Clean or replace metering valve.
Detergent solution i too weak Clogged detergent strainer or metering valve. Clean or replace.
Air leak in detergent suction tube – or inlet plumbing. Find air leak and tighten or replace parts as necessary.
Detergent solution too concentrated Original detergent product too concentrated. Dilute product 2:1 and recalibrate the metering valve suction.
Detergent appearing in the rinse cycle Detergent control valve open. Close valve completely.
Leaking (defective) detergent control valve. Replace with new control valve.
Solution of detergent concentrate during shut down Detergent at lower level than water supply plumbing and natural siphon drains water into detergent container. Shut off detergent control valve and/or water valve when shutting down.
Detergent siphons out during shutdown Washer is shut down, detergent valve left open and gun is laid on ground (below the level of the detergent container) creating a natural siphon of detergent supply. Close detergent valve when shut down. Store hose properly instead of leaving on ground.
Valve defective. Replace valve.