Is Your Electric Shower Leaking? Resolved

By Ben Victor

Updated: 16th August 2023

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A leaking electric shower isn’t just an inconvenience; it can lead to more significant problems if left unattended.

The most common reason for a leaking electric shower is a limescale buildup or a faulty PRD – both very easy to fix.

Electric shower leaks might seem daunting to fix, but with a little know-how and some elbow grease, you can often tackle the problem yourself.

In this guide, we’ll explore the common reasons for electric shower leaks and provide step-by-step instructions to fix them. From limescale buildup to PRD failure, we’ll cover it all in a friendly, easy-to-follow manner.

1. Reasons for Electric Shower Leaking

Limescale Buildup

Hard water can lead to limescale deposits in your shower hose or showerhead. This buildup can obstruct the water’s path, causing leaks. The solution? Regular cleaning can prevent this, and if you notice a leak, you can often fix it by soaking the affected parts in vinegar and baking soda. Worst-case scenario, you might need to replace the showerhead or hose.

Loose or Damaged Teflon Plumber’s or PTFE Tape

The plumber’s tape used to seal the threading of your showerhead can wear out over time. If it’s not replaced regularly, it may lead to leaks where the spigot meets the showerhead. This is a simple fix, involving just a few wraps of new tape around the threading to provide a solid seal.

Pressure Relief Device (PRD) Failure

The PRD is a safety feature that relieves pressure if the water pressure in your tank builds to dangerous levels. If this device fails, a leak may occur from a buildup of unreleased pressure. This is more complex but can be fixed by replacing the PRD – they are usually quite cheap.

Get a PRD on Amazon

2. Replacing a PRD: A Step-by-Step Guide

Replacing a PRD requires careful attention. Here’s a detailed guide:

Turn off Everything: Safety first! Turn off the water at the main, power at the main breaker, and remove the related fuse from the fuse box.
Remove the Shower Cover: Carefully remove the cover on the front to access the PRD.
Locate the PRD: Look at the bottom of the shower; the PRD should be located near the outlet pipe. If it’s affixed with screws, unscrew it.
Remove the PRD and Old O-ring: Be gentle and make sure to keep track of all parts.
Install the New PRD: Push the new device into place, using the replacement O-ring if needed. It should snap into its spot, but don’t use excessive force.
Reinstall Everything: Put the cover back, turn the water and power back on, and test to ensure the leak is fixed.

3. Cleaning & Other Minor Fixes

While working on your shower, it’s a good opportunity to check for other issues:

Limescale and Mineral Buildup

Soak in Vinegar Solution: Remove the showerhead and hose and submerge them in vinegar and baking soda for at least 30 minutes.
Scrub and Scrape: Use a bobby pin or paperclip to poke bits out of the showerhead’s holes and scrub until clean.
Reattach: Reapply PTFE tape to the threading and screw the head back into place.

Related: Best Shower Cleaner UK

Damaged Hose or Seals

Inspect for Damage: Look for kinks, cracks, or other damage to hoses or seals.
Replace if Needed: If you notice severe damage, replace the parts. They’re usually inexpensive and easy to replace.

4. You’re Ready to Tackle This!

Electric shower leaking from the unit can be a nuisance, but with this guide, you’re well-equipped to diagnose and fix the problem. Whether it’s a blown PRD, limescale buildup, or a failed showerhead or hose, these fixes are straightforward with a little patience and care.

Remember, if anything seems too complicated or if you’re unsure at any step, don’t hesitate to call a professional plumber or electrician. Safety and proper repair are paramount.

Now, grab your tools or cleaner, and let’s get that shower back in tip-top shape. You’ve got this!