An electric shower relies on controlling the flow of water to provide the ability to alter the temperature. As you turn the temperature dial towards the hot setting, you should notice a corresponding reduction in the water flow. This is so the water can run over the heating elements for longer and reach a warmer temperature.
To ensure proper operation, water flow must remain unobstructed, as any restriction can lead to unintended overheating. Flow can be hindered by a kinked or twisted hose, or a blocked showerhead, potentially causing three sequential outcomes:
- Excessive Heat: Reduced flow results in significantly hotter water, even when the temperature dial is lowered.
- Fluctuating Temperature: The shower alternates between hot and cold as it attempts to maintain safe operating conditions. When excessively warm water is detected, the heating elements shut off, causing rapid cooling. Once the water cools, heating resumes, but the cycle soon repeats.
- Cold-Only Mode: If overheating persists, the thermal switch engages to protect the user, keeping the shower in a cold-only state.
A common misconception is that flow restrictions are always visible. However, even a minor reduction can trigger these issues.
Additionally, limescale buildup can compromise temperature regulation in electric showers. Mira electric showers incorporate Mira Clearscale™ and Phased Shutdown technology, which helps minimize limescale accumulation and extends the shower's lifespan.
If you require further assistance, please contact our Customer Service Team by using the contact us form. To view an online copy of the shower installation guide, or to search for spare parts, please click here to search for your product information.
