Important Safety Information
Please read all instructions carefully before using the appliance. Keep this manual for future reference.
- Always ensure the appliance is properly grounded to prevent electrical shock.
- Do not immerse the appliance, cord, or plug in water or other liquids.
- Supervise children when the appliance is in use.
- Use only detergents specifically designed for dishwashers.
- Do not open the door during operation, especially during hot water cycles.
- Ensure proper ventilation around the appliance.
Product Overview
The IRIS OHYAMA PZSH-5T-W is a compact, tank-type countertop dishwasher and dryer designed for easy use without the need for complex installation. It features a powerful cleaning system and multiple wash cycles to ensure your dishes are thoroughly cleaned and dried.

Figure 1: Front view of the IRIS OHYAMA PZSH-5T-W Dishwasher with dishes loaded.
Setup
Unpacking and Placement
Carefully remove the dishwasher from its packaging. Place the unit on a stable, level surface in your kitchen. This tank-type dishwasher does not require plumbing installation, making it ready for immediate use.

Figure 2: The dishwasher placed on a kitchen counter, illustrating its installation-free design.
Connecting Power and Water
- Plug the power cord into a grounded AC100V (50/60Hz) outlet. Ensure the earth connection is properly made.
- Fill the water tank using the provided water cup and funnel. The tank capacity is approximately 5 liters.
- Connect the drain hose to the designated outlet on the unit. Note that the drain hose connection is only on one side. Position the other end of the drain hose into a sink or suitable drainage area.
Included Components
- Dish rack
- Small item basket
- Drain hose
- Water supply cup
- Funnel
Operating Instructions
Loading Dishes
Arrange dishes in the rack, ensuring they do not block the rotating upper and lower spray nozzles. The standard capacity is 15 items (e.g., 2 large plates, 2 medium plates, 2 small plates, 2 small bowls, 2 teacups, 2 soup bowls, 3 cups, plus small items like chopsticks and spoons).
Adding Detergent
Add approximately 6g of dedicated dishwasher detergent to the detergent dispenser.
Selecting a Wash Course
Choose a wash course based on the type of dishes and level of dirt. The unit features a rotating nozzle spray washing method and an accumulated rinse method, followed by air drying.

Figure 3: Control panel with various wash course options and estimated times.
| Course | Description | Approx. Time | Dry Keep (1hr) | Dry Keep (4hr) |
|---|---|---|---|---|
| Standard | For immediate washing after meals or regular use. | 1 hr 30 min | Yes | Yes |
| Intensive | For dishes left for a while or cooking utensils. | 2 hr 10 min | Yes | Yes |
| Soft | For plastic dishes or items resistant to temperatures below 65°C-90°C. | 1 hr 45 min | No | No |
| Quick | For lightly soiled items or after pre-soaking. | 39 min | No | No |
Reservation Function
The reservation function allows you to set a delayed start time, which can be useful for utilizing off-peak electricity hours to save on costs.
Starting the Cycle
Press the 'Start' button to begin the selected wash cycle. The standard course duration is approximately 1 hour and 30 minutes, including washing, rinsing, and air drying.
Maintenance
Cleaning and Sterilization
The dishwasher provides sterilization and drying functions to maintain hygiene. Warm water washing effectively sterilizes dishes, and the air drying function helps prevent re-condensation inside the unit.

Figure 4: Illustration of sterilization effectiveness, showing a significant reduction in bacteria after washing.
Test results from a general incorporated association Boken Quality Evaluation Mechanism confirm over 99% reduction in bacteria (tested with one type of bacteria) using high-temperature washing and spray method. Test report issued: May 29, 2020. Report number: 3502000302. Sterilization effect varies depending on the amount of dishes and degree of dirt.
Regular Cleaning
- Regularly clean the filter to ensure optimal performance.
- Wipe down the interior and exterior of the appliance with a damp cloth.
- Ensure the drain hose is clear of blockages.
Troubleshooting
If you encounter issues with your dishwasher, refer to the following common problems and solutions:
- Appliance not starting: Check if the power cord is securely plugged in and the power switch is on. Ensure the door is fully closed.
- Dishes not clean: Verify that dishes are loaded correctly and not blocking spray arms. Ensure sufficient detergent is used. Check if the filter is clean.
- Water not filling: Ensure the water tank is adequately filled. Check for any error codes on the display.
- Excessive noise: Some operational noise is normal. However, if the noise is unusually loud or accompanied by strong vibrations, ensure the appliance is on a stable, level surface and not touching other objects. Check for any loose items inside the dishwasher.
- Cloudy glass: This can sometimes be due to hard water or incorrect detergent dosage. Try adjusting detergent amount or using a rinse aid if available.
- Water remaining in the unit: Ensure the drain hose is properly positioned and not kinked or blocked.
If the problem persists after attempting these solutions, please contact IRIS OHYAMA customer support.
Specifications
Below are the technical specifications for the IRIS OHYAMA PZSH-5T-W Dishwasher:

Figure 5: Product dimensions (Width: 44.5cm, Depth: 42cm, Height: 43.5cm).
| Feature | Specification |
|---|---|
| Brand | IRIS OHYAMA |
| Model Number | PZSH-5T-W |
| Product Type | Dishwasher and Dryer |
| Installation Type | Countertop (Tank Type, No Installation Required) |
| Dimensions (D x W x H) | Approx. 42 cm x 44.5 cm x 43.5 cm |
| Weight (Main unit, basket, small item holder) | Approx. 13 kg |
| Power Supply | AC100V (50/60Hz common) |
| Rated Power Consumption | 512W / 526W |
| Power Cord Length | Approx. 2 m |
| Tank Capacity | Approx. 5 L |
| Washing Method | Rotating Nozzle Spray Type |
| Rinsing Method | Accumulated Rinse |
| Drying Method | Air Drying |
| Standard Storage Capacity | 15 items |
| Standard Detergent Usage | Approx. 6 g |
| Standard Course Time (Wash, Rinse, Air Dry) | Approx. 1 hour 30 minutes |
| Control Type | Touch |
| Color | White |
| Finish Type | Gloss |
| Special Features | Compact, Reservation Function |
Note: Actual power consumption and operation time may vary depending on the washing course, water temperature, and other environmental factors.
Warranty and Support
Manufacturer's Warranty
This product comes with a 1-year manufacturer's warranty from the date of purchase. Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, warranty service, or any questions regarding your IRIS OHYAMA PZSH-5T-W dishwasher, please contact IRIS OHYAMA customer support. Refer to the contact information provided in your product packaging or on the official IRIS OHYAMA website.