Electric Shower Dripping When Off: Resolved

By Ben Victor

Updated: 20th August 2023

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Electric showers are a modern marvel that many of us have come to rely on.

However, like anything electrical, they can sometimes experience issues.

One common problem that many homeowners face is their electric shower dripping even when it’s turned off.

The most common reason for your electric shower dripping when off is due to a worn out valve, seals or washers (o-rings).

In this article, we’ll delve into the reasons behind this issue and provide solutions to resolve it.

Common Causes of Mixer Showers Dripping When Off

Before diving into the solutions, it’s essential to understand the root causes.

An electric shower, while efficient and convenient, is made up of various components that can wear out or malfunction over time.

Identifying the reason behind the dripping is the first step to a lasting solution.

Let’s explore the common culprits behind a dripping electric shower when turned off.

1. Worn Out Seals or Washers

Seals and washers are integral components in your shower system, acting as barriers to prevent water from leaking out from connections and joints. Typically made of rubber or silicone, these components are exposed to water, temperature fluctuations, and general wear and tear, leading to material degradation over time.

A worn-out seal or washer might initially result in a slow but consistent drip, especially right after using the shower. As the wear becomes more pronounced, the drip rate could increase.

To ensure the longevity of your shower system, it’s advisable to inspect these components regularly and replace them as needed. Keeping a few spare seals or washers on hand can be especially beneficial for older shower systems.

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2. High Water Pressure

Water pressure in a home can sometimes fluctuate due to various reasons, such as issues with the municipal supply or changes in local demand. When the pressure is too high, it can strain the internal components of your electric shower, making it harder for seals and washers to effectively prevent leaks. This strain can lead to drips as water is forced past these barriers.

Other signs of high water pressure in a home might include banging pipes, leaks in other fixtures, or a reduced lifespan of water-related appliances. To maintain a balanced water pressure, homeowners should monitor it using a pressure gauge. If consistently high, the installation of a pressure-reducing valve might be a worthwhile consideration.

3. Faulty Thermostatic Valve

The thermostatic valve plays a pivotal role in ensuring a consistent water temperature in your shower by mixing hot and cold water. Over time, like all mechanical components, thermostatic valves can wear out or become damaged.

A malfunctioning valve might not only cause dripping but can also result in inconsistent water temperatures or even sudden temperature spikes.

Regular maintenance and inspections can help homeowners identify issues with the thermostatic valve early on, ensuring a comfortable and safe showering experience.

4. Limescale Build-up

In regions with hard water, the water contains high levels of dissolved minerals, especially calcium and magnesium. As water flows through shower components, these minerals can deposit and form a hard, chalky substance known as limescale.

Over time, limescale can accumulate, leading to blockages in the showerhead or other components. This blockage can force water to find alternative exit paths, resulting in drips. Additionally, limescale can reduce the efficiency of the shower and even affect water temperature.

To combat the effects of limescale, regular cleaning with descaling agents is recommended. For those facing persistent limescale issues, the installation of a water softener can offer a more long-term solution.

Related: Best Shower Cleaners

How to Fix an Electric Shower that Drips While Off

Safety First:

Before attempting any repairs or inspections on your electric shower, safety should always be your top priority. Here are some essential safety steps to follow:

Turn Off the Power: Ensure the power supply to the electric shower is turned off. This can usually be done via a circuit breaker or a dedicated switch for the shower.
Turn Off the Water Supply: Before working on any plumbing components, turn off the water supply to prevent any unexpected water flow.
Use Insulated Tools: If you’re working near electrical components, always use insulated tools to reduce the risk of electric shock.
Work in a Well-Lit Area: Ensure you have adequate lighting to see what you’re doing clearly. This not only makes the task easier but also safer.
Consult the User Manual: Different electric shower models might have specific safety precautions. Always refer to the manufacturer’s user manual before starting any repair work.

1. Replace Seals or Washers

Turn off the water supply to the shower.
Remove the shower handle to access the valve.
Check the condition of the seals or washers. If they appear worn or damaged, replace them.
Reassemble the shower and turn the water back on. Check for drips.

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2. Adjust Water Pressure

If you suspect high water pressure is the cause, consider installing a pressure-reducing valve.
Alternatively, you can adjust the water pressure on your home’s main water valve.

3. Check the Thermostatic Valve

Turn off the water supply.
Access the thermostatic valve, usually located behind the shower control.
Inspect it for any signs of damage or wear.
If it appears faulty, consider replacing it.

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4. Clean the Showerhead

Remove the showerhead from its arm or holder.
Soak it in a solution of equal parts white vinegar and water for several hours. This will help dissolve any limescale build-up.
Use a small brush to scrub away any remaining deposits.
Reattach the showerhead and check for drips.

Related: How to Clean your Shower Head