1. Introduction
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of your Mistral Instant Shower Water Heater MSH606. Please read this manual thoroughly before installation and use, and retain it for future reference.
2. Safety Information
Important Safety Instructions:
- Always ensure the water heater is properly grounded.
- Installation must be performed by a qualified electrician and plumber in accordance with local regulations.
- Do not operate the water heater if the power cord or plug is damaged.
- Do not block the water outlet or inlet.
- Ensure adequate water pressure before operating the unit.
- Regularly inspect the unit for any signs of damage or leakage.
- Disconnect power before performing any maintenance or cleaning.
3. Product Overview
The Mistral MSH606 is an instant shower water heater designed for efficient hot water delivery. It features a compact design suitable for indoor installation.

Figure 1: Mistral Instant Shower Water Heater MSH606. The image displays the main white heating unit on the right, featuring the Mistral logo, model number MSH606, a red power indicator light, two circular buttons, and a large rotary temperature control knob with 'OFF' and 'MAX' markings. To the left, a white shower head with a flexible hose is attached to a chrome-finished vertical bar, which includes an adjustable holder for the shower head and a small soap dish.
Key Components:
- Main Heating Unit: Houses the heating element and controls.
- Power Indicator: A red light indicating when the unit is powered on.
- Temperature Control Knob: Rotary knob to adjust water temperature from 'OFF' to 'MAX'.
- Shower Head and Hose: Delivers the heated water.
- Slide Bar: Allows adjustment of the shower head height.
4. Setup and Installation
Note: Installation of this appliance requires professional expertise. It is strongly recommended that installation be carried out by a qualified electrician and plumber to ensure safety and compliance with all local electrical and plumbing codes.
- Site Selection: Choose a suitable location for indoor installation, ensuring adequate ventilation and accessibility for maintenance.
- Mounting: Securely mount the main heating unit to a solid wall using appropriate fasteners.
- Water Connection: Connect the water inlet and outlet pipes according to the markings on the unit. Ensure all connections are watertight.
- Electrical Connection: Connect the unit to a dedicated electrical circuit with appropriate circuit breakers and grounding. Verify voltage and wattage requirements.
- Test Run: Before first use, open the water supply to the unit and allow water to flow through the shower head for a few minutes to purge air from the system. Then, switch on the power and test the temperature control.
5. Operating Instructions
To operate your Mistral Instant Shower Water Heater:
- Ensure Water Supply: Confirm that the main water supply to the unit is open.
- Turn On Power: Switch on the electrical power supply to the water heater. The red power indicator light on the unit should illuminate.
- Adjust Temperature: Rotate the temperature control knob clockwise from 'OFF' towards 'MAX' to increase the water temperature. Rotate counter-clockwise to decrease the temperature.
- Shower: Once the desired temperature is reached, you can begin showering.
- Turn Off: After use, rotate the temperature control knob to 'OFF' and switch off the electrical power supply.
6. Maintenance
Regular maintenance ensures the longevity and efficient operation of your water heater.
- Cleaning: Wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Shower Head Cleaning: Periodically remove and clean the shower head nozzles to prevent mineral buildup and ensure consistent water flow. Soaking in a descaling solution may be necessary.
- Inlet Filter: Check and clean the inlet water filter regularly to prevent debris from entering the unit.
- Professional Inspection: It is recommended to have the unit inspected by a qualified technician annually.
7. Troubleshooting
Refer to the following table for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water / Water not heating | No power supply; Low water pressure; Heating element failure. | Check circuit breaker/fuse; Ensure adequate water flow; Contact qualified technician. |
| Weak water flow | Clogged shower head; Clogged inlet filter; Low main water pressure. | Clean shower head; Clean inlet filter; Check household water pressure. |
| Water too hot or too cold | Incorrect temperature setting; Fluctuating water pressure. | Adjust temperature knob; Ensure stable water pressure. |
| Leakage from unit | Loose connections; Damaged internal components. | Turn off power and water supply immediately; Contact qualified technician. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | MISTRAL |
| Model Number | MSH606 |
| Manufacturer | Mistral |
| Colour | White |
| Style | Indoor Installation |
| Power Source Type | AC |
| Voltage | 230 Volts |
| Wattage | 3.3 KW |
| Maximum Pressure | 8 Bars |
| Plug Profile | Wall |
9. Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or contact Mistral customer service. Keep your purchase receipt as proof of purchase.
For further assistance, please visit the official Mistral website or contact their authorized service centers.





