Hotsy pressure washers are renowned amongst users for their durability and industrial-grade applications. Despite being very few, most of the complaints by users are regarding the pump, water delivery system, or engine/motor. This blog post discusses how to troubleshoot and fix the pump and water-related issues that are relatively common in Hotsy pressure washers.
Hotsy Pressure Washer Problems:
If your Hotsy pressure washer leaks water, the issue could be with the pump or the input hose, high-pressure hose, or spray gun connections. Examine the seals and O-rings at all connections for tightness and durability. If you notice an unusual difference in water pressure, examine the nozzles and ensure the unloader valve is positioned correctly. If your pump leaks oil or makes odd noises, lubricate it and check the seals.
If you have encountered these problems with your Hotsy pressure washer and are looking to solve them, I give in this article a troubleshooting guide on how to fix the issues.
Contents
- 1 Hotsy Pressure Washer is Leaking Water
- 2 Hotsy Pressure Washer: Water Pressure Problems
- 2.1 ● 1. Hotsy Pressure Washer: Low Pressure
- 2.2 ● 2. Hotsy Pressure Washer: No Pressure
- 2.3 ● 3. Hotsy Pressure Washer: Surging Pressure
- 2.4 ● 4. Hotsy Pressure Washer: Drops Pressure after a Few Seconds
- 2.5 ● 5. Hotsy Pressure Washer: Strange Noises from Pump
- 2.6 ● 6. Hotsy Pressure Washer: Excessive Noise
- 2.7 ● 7. Hotsy Pressure Washer: Oil Leaking from the Pump
- 2.8 ● 8. Hotsy Pressure Washer: Water in Oil
- 2.9 ● 9. Hotsy Pressure Washer: Soap Not Dispensing from Reservoir
- 3 Hotsy Pressure Washer troubleshooting table:
Hotsy Pressure Washer is Leaking Water
Water may escape from your Hotsy pressure washer’s hose attachments. To find the cause of the water leak, inspect the hose connections at the pump and spray gun one by one.
It is more probable that a leak will occur at one of these three locations. The pump itself might cause the leak. Another possible leak location is the pump’s intake and exit hose connectors. In addition, water may leak from the spray gun’s connection to the high-pressure hose.
● Hotsy Pressure Washer: Water Leaking from the Pump
If your Hotsy pressure washer leaks water straight from the pump, the piston seals are most likely worn out and need to be replaced.
Most pressure washer pumps use a piston mechanism with positive displacement to push water through the hoses. A piston seal keeps water from entering or leaking the pump. These seals deteriorate with time, ultimately causing a leak. In such a situation, you may have to remove the pump casing and inspect the piston seals for indications of wear on your own.
This only applies if you have a plunger pump. Axial and wobbling plate pumps are factory-assembled and cannot be taken disassembled for maintenance. Consequently, their seals cannot be changed separately, and the whole pump must be replaced to resolve the problem.
● Hotsy Pressure Washer: Water Leaking from the Hose Connection
If the hose connections on your pressure washer are leaking, you should try changing the pipe fittings/couplings at these connections.
A pipe connector joins the pipe to the low-pressure inlet of the pump, and the seal on these joints is leak-proof. As a result, if there is a leak at this site, it is more probable that the connection and its seal have worn out. Similarly, the exit seal should be replaced if the connection at the pump’s high-pressure output and its associated hose leaks.
● Hotsy Pressure Washer: Water Leaking from the Hose Connection
If your Hotsy pressure washer’s spray gun leaks, inspect the hose-gun connection and tighten the screws. In addition, check the high-pressure line at the outlet for a damaged O-ring and replace it if necessary.
Most pressure washers use a push fit to connect the high-pressure hose to the spray cannon. Check that the fit is proper and that the connection is not loose. If it contains screws, make sure they’re tight. Ensure the hose’s O-ring is intact and present if the leak persists after tightening the connection. This leak might have been caused by a broken or missing O-ring.
Pressure washer seals, gaskets, and O-rings are available online or from your local parts store.
Hotsy Pressure Washer: Water Pressure Problems
Follow the procedures below if your Hotsy pressure washer isn’t delivering adequate water pressure.
● 1. Hotsy Pressure Washer: Low Pressure
To resolve low water pressure, ensure sufficient water enters and the intake line is clear of debris. In addition, ensure that the exit nozzle is not damaged or blocked with dirt.
The water flow rate entering the pump must be sufficient to create enough pressure at the exit. You must also examine and eliminate any twists or bends in the inlet hose. Furthermore, most input hoses have a dust filter at the point where it is connected to the pump. Examine the filter for any dirt that has been lodged. If the pressure remains low, ensure you’re using the correct nozzle and it’s not choked with debris.
● 2. Hotsy Pressure Washer: No Pressure
Check the water source, hoses, and nozzle if your pressure washer loses pressure. Next, check the unloader valve and the pump, of which at least one must be repaired.
Pressure loss may also be caused due to nozzle debris or a low water supply. The problem is most likely with the pump and unloader valve in this scenario. Adjust the unloader valve gently while the pump operates, and the trigger is pressed to check whether the pressure improves.
If the issue continues, the unloader valve, which is most likely defective, must be replaced. It would be good if you also examined the plungers and O-rings of your pump for damage.
Air bubbles caused by cavitation may cause long-term damage to different pump components, resulting in pressure loss. Before changing the components on your pump, consult the owner’s manual. Because most pumps are constructed as a single unit, they cannot be dismantled and must be replaced with an identical one.
● 3. Hotsy Pressure Washer: Surging Pressure
Inspect your nozzle for clogs or evidence of damage if your water pressure suddenly increases. Adjust the unloader valve so more water enters the bypass and less enters the spray nozzle.
A pressure washer’s unloader valve transfers a part of the high-pressure water flow to the pump intake or water tank rather than the spray nozzle. When you tighten the unloader valve, very little incoming flow is bypassed, resulting in increased pressure at the exit nozzle.
Loosening the unloader valve increases the bypass flow rate, minimizing pressure spikes at the spray gun. If this does not work, examine your nozzle for apparent signs of damage and replace it.
● 4. Hotsy Pressure Washer: Drops Pressure after a Few Seconds
If your water pressure drops abruptly, it might be due to a worn-out nozzle or a hose leak. A faulty unloader valve could potentially have led to this problem.
In contrast to the earlier example of surging, if the unloader is adjusted too loosely, the pressure at the spray gun may decrease. If this setting is too loose, any flow level may overcome the spring tension and discharge to the water tank. As a consequence, the water pressure at the nozzle exit drops.
In addition, inspect your hoses for any holes or leaks. Make sure your nozzle is not clogged with dirt or debris.
● 5. Hotsy Pressure Washer: Strange Noises from Pump
If your pump is producing strange noises, it might be due to worn-out connecting rods or bearings. It will also make noise if it is not lubricated on time.
Premium pressure washers with plunger-type pumps need oil replenishment every three months. For these pumps to operate effectively, they need frequent maintenance. In low-end models, the pump is either axial or wobble plate. These pumps do not need oil refill since they are permanently sealed with oil after assembly.
– Solution
The pump should be serviced and greased every three months, depending on the pressure washer (axial or plunger). Non-greased metal components tend to rub against each other, generating a lot of noise. If this happens, remove the plunger pump and examine the bearings and connecting rods. A bearing replacement may be needed if lubricating the pump does not fix the issue.
If the noise continues, the pump’s connecting rods could be damaged, mainly if your pump is old. Fatigue and tension may hasten the wear rate of your pump’s connecting rods, particularly if it has been operating for an extended period.
If your pressure washer’s axial or wobbling plate pump makes peculiar sounds, replace it with a similar pump since it cannot be repaired due to its more straightforward build.
● 6. Hotsy Pressure Washer: Excessive Noise
If your pressure washer makes a lot of noise, it might be due to damaged internal pump components, the air seeping into the pump, a cracked pump casing, or the engine knocking due to bad fuel quality.
– Pump Wear and Tear:
When air gets trapped in a pump, the plungers generate a loud grinding noise, which may cause seals and connecting rods to wear out. There may be vibrations and noise if the pump’s casing is broken.
– Engine Knocking Sound:
Examine the fuel grade in the engine of your gas-powered Hotsy pressure washer. To eliminate engine knocking, I recommend using ethanol-free, unleaded gasoline with an octane number of at least 87. You could also search in your owner’s manual to see the manufacturer’s recommended rating.
● 7. Hotsy Pressure Washer: Oil Leaking from the Pump
A shattered O-ring or a damaged seal causes oil to escape from a pump. If required, dismantle your pump and replace all of the seals by hand. If the product is still under warranty, contact the manufacturer for help.
Even though your pump’s warranty has expired, it could still be fixed if you disassemble it. You should consult a mechanic or contact the manufacturer if you lack the expertise to replace the seals. To help you with the replacements, I suggest purchasing an oil seal kit that includes seals and rings in different sizes.
During reassembly, be sure that all bolts and fittings are correctly tightened. Pressure washers should never be exposed to high temperatures to avoid further oil leaks. If your pressure washer’s pump is permanently sealed, the only remedy is to replace it.
● 8. Hotsy Pressure Washer: Water in Oil
Water could leak into the pressure washer pump if the oil seal on the pump fails. You should consider replacing the seal in this condition.
The addition of water causes the oil in the pump to become milky, indicating an oil seal being broken. The pump must be completely disassembled to replace the seal, including the housing, valves, seals, and rings.
I recommend only disassembling the pump if your warranty has ended. If the pump’s still under warranty, your manufacturer should perform this replacement/repair. Please note that this only applies if your pressure washer has a pump whose oil can be replenished, such as a plunger-type pump. Pumps that come factory-assembled can only be replaced and not repaired.
● 9. Hotsy Pressure Washer: Soap Not Dispensing from Reservoir
Check the nozzle size if your pressure washer isn’t pulling soap from the reservoir. You must also check the soap injector kit and repair any broken or worn components.
Your pressure washer’s manual recommends a specific nozzle size for the soap injection function, which provides sufficient suction pressure for all detergent types. Make sure you’re using the proper nozzle. If it still doesn’t work, ensure the nozzle on your injection kit isn’t clogged or damaged. A chemical injector repair kit may help you by supplying the necessary replacement parts.
Hotsy Pressure Washer troubleshooting table:
Problem | Cause | Solution |
The pressure washer is not producing high pressure | Hose with small diameter | Replace your hose with a 1″ (25mm) or 5/8″ (16mm) hose |
Restricted water supply to the washer | Check for the kinks and leaks in the hose | |
Inadequate water supply | Ensure the water source is unobstructed and fully turned on | |
Clogged intake filter | Remove the filter and rinse it with warm water | |
Air in the pump | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip | |
The suction tube or detergent bottle is not connected properly | Install the suction tube and detergent bottle correctly | |
Detergent too thick | Dilute the thick detergent by adding water | |
Obstructed spray tip | Remove the debris with a needle | |
No pressure tip on the wand | Install a suitable pressure tip at the end of the wand | |
If your model has a belt, it can be loose. | Tighten or replace the belt. |
Problem | Cause | Solution |
Pulsing pressure washer (output pressure varies high and low) | Inadequate water supply | Ensure that the water source is fully on and check the hose for kinks and blockage |
Obstructed spray tip | Remove the debris with a needle | |
Pump sucking air | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip | |
Clogged intake filter | Remove the filter and rinse it with warm water | |
Calcified hose, tip, or trigger | Clean the hose, pressure tip, or trigger with vinegar or a cleaner designed for this purpose |
Problem | Cause | Solution |
Noisy Pump | Air in the pump | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip |
Clogged inlet filter | Remove the filter and rinse it with warm water | |
Pump leaking water | Damaged or worn water seals | Replace the seals with new ones or call a professional |
Loose fittings | Ensure that all the fittings are tight | |
Erratic water pressure, changing up and down | Unloader valve | Check and clean the unloader valve. If in bad shape, replace it |
No output pressure. Or the motor stops when using the trigger (electric models) | Unloader valve | Check and clean the unloader valve. If in bad shape, replace it |
● Hotsy Gas Pressure Washer Engine troubleshooting table:
Problem | Cause | Solution |
Leaks in the spray wand, spray tip, or extension | Damaged or broken O-rings or plastic insert | Replace the worn O-rings or call a professional |
Pressure washer pump dripping oil | Worn or damaged oil seals | Inspect the oil seals and replace them if worn |
No water from the washer outlet | The water supply is off | Turn the water supply ON |
Kink in the hose or faucet not fully open | Remove any kinks and debris from the hose or water lines. Check and fully open the faucet. |
Problem | Cause | Solution |
The motor won’t start | Check the battery | Check if the battery is charged correctly. Charge or replace when in bad condition. Examine the battery terminals for a proper connection. Clean if needed. |
Check the fuel filter | Clean the fuel filter if dirty. In that case, check the gas tank, as this is the most likely culprit. | |
Check the gas supply | Check the fuel level and add if needed. Ensure that the gas can flow to the carburetor. Remove any blockage. | |
Check the Air-filter | Clean the air filter. Replace it when it is in bad condition or it is a paper air filter. | |
Check the carburetor | Remove and clean the carburetor with some carb cleaner. It is also possible to clean it without removing it. | |
Fuel gap blocked | Check that the hole in the fuel cap is open. Clean if needed. | |
The engine is stalling, or starts and stops | Check the carburetor | Remove and clean the carburetor with some carb cleaner. It is also possible to clean it without removing it. |
Air filter | Clean the air filter. Replace it when it is in bad condition or it is a paper air filter. | |
Check for bad gas | Suppose you have old gas, more than a few months old. It can turn bad. Drain and replace the gas. Next time add a fuel stabilizer. |
● Hotsy Electric Pressure Washer Motor troubleshooting table:
Problem | Cause | Solution |
The motor won’t start | The power switch is in the “OFF” or “0” state | Turn the power switch “ON” or “1” |
Cord not plugged | Plugin the power cord | |
Damaged, too long, or improper extension cord | Replace the existing cord with a 25′ (7.6m) 14 AWG cord or a 50′ (15m) 12 AWG cord | |
Inadequate power from the electrical outlet | Plug the cord into a different outlet | |
The pressure washer circuit breaker tripped | Please wait for the washer to cool down and restart it | |
The motor buzzes but fails to run | Loss in voltage due to the extension cord | Plug the unit directly into the outlet without an extension cord. If the problem isn’t solved, replace the extension cord |
Low supply voltage | Ensure that only the pressure washer runs on that circuit at the time of use | |
Residual pressure in the system | Shut off the washer and squeeze the trigger to release pressure | |
Residual friction among the internal components | Cut the water supply and turn the machine ON for 2 to 3 seconds. Try it a couple of times or until the motor starts. Don’t let the machine run dry for more than 3 seconds. | |
Unit not used for long periods | I recommend calling a professional for help | |
Motor not working | Faulty Timer | Disconnect the leads from the timer. If your pressure washer doesn’t turn off after the time out, the timer is faulty, and you need to replace it. |
What is the best way to clean and maintain the pump on a pressure washer?
To clean and maintain the pump on a Hotsy pressure washer, inspect hose connections, seals, and O-rings for leaks or wear. Lubricate the pump and replace worn parts as needed.
What is the best way to store a pressure washer during the winter months?
For storing your Hotsy pressure washer during the winter, drain all fluids, clean thoroughly, and store in a cool, dry place. Avoid any freezing temperatures that could damage internal components.
Great tutorial on how to fix common problems with Hotsy pressure washers, very informative!
Thank you, Morris! I’m glad you found the tutorial helpful in fixing Hotsy pressure washer issues. Let me know if you need any more assistance with troubleshooting.
How do I know if the pump on my pressure washer needs to be replaced?
If you suspect your Hotsy pump needs replacing, check for water leaks, oil leaks, and unusual noises. Lubricate the pump and inspect the piston seals for wear. Good luck!
I never realized how many different issues could arise with a pressure washer, thanks for the info!
Thank you for reading! I’m glad you found the information helpful. If you have any more questions or need further assistance, feel free to reach out. Happy pressure washing with your Hotsy!
Is there a way to prevent water from leaking into the oil in my pressure washer’s pump?
Hi Sherri, to prevent water from leaking into the oil in your Hotsy pressure washer’s pump, make sure to check the seals and O-rings at all connections for tightness and durability. Hope this helps!
This guide has been incredibly useful in helping me troubleshoot my pressure washer issues.
Thank you so much, Jeanette! I’m glad the guide was helpful in resolving your pressure washer issues. If you have any more questions or need further assistance, feel free to reach out.
What can I do if my pressure washer is losing pressure over time?
Sebastian, check for leaks in the pump or hose connections. Examine seals and replace worn-out parts to maintain water pressure in your Hotsy pressure washer.
How often should I change the oil in my pressure washer’s engine?
For optimal performance, change the oil in your Hotsy pressure washer engine after every 50 hours of use. This will help maintain its durability and prevent common issues.
Is there a specific maintenance schedule I should follow for my Hotsy pressure washer?
Yes, follow a maintenance schedule to prevent common issues. Check seals, connections, and nozzles regularly for leaks or pressure problems. Lubricate and check the pump for odd noises.
Really helpful information on fixing common issues with Hotsy pressure washers.
Thank you for the positive feedback, Joseph! I’m glad you found the information helpful for fixing common issues with Hotsy pressure washers.
Thanks for the detailed troubleshooting guide!
Glad you found it helpful, Leah! Let me know if you need further assistance.
Are there any safety precautions I should take when troubleshooting my pressure washer?
Remember to always disconnect the power source, check for water leaks, and wear protective gear. Troubleshoot methodically and refer to your Hotsy manual for specific guidance. Good luck!
What should I do if my pressure washer doesn’t turn on at all?
If your Hotsy pressure washer is not turning on, check the power source, power switch, and any possible tripped breakers before considering further troubleshooting.
Can I use a pressure washer to clean my car’s engine?
Yes, a pressure washer can be used to clean your car’s engine, but be cautious around sensitive areas and electrical components to prevent damage.
Great step-by-step guide on how to fix common issues with Hotsy pressure washers!
Thank you, Harry! I’m glad you found the guide useful for troubleshooting Hotsy pressure washer issues. Your feedback is greatly appreciated!
How do I know if the nozzle on my pressure washer needs to be replaced?
Barry, if you notice a change in water pressure, check the nozzles and make sure the unloader valve is in the correct position. This could indicate that the nozzle on your pressure washer needs to be replaced.
Super helpful information, thanks for sharing!
Thank you, Ruby! Glad you found the information helpful. If you have any more questions, feel free to ask.
Is it normal for a pressure washer to vibrate a lot during use?
Yes, it’s normal for a pressure washer to vibrate during use, but excessive vibration could be a sign of an issue with the pump or motor. Check the connections and lubrication for any problems.
I appreciate the detailed explanations for each common issue with Hotsy pressure washers.
Thank you for your positive feedback, Miriam. I’m glad you found the explanations helpful. If you have any more questions, feel free to ask!