Our electric shower has low pressure whenever it is hot

When the temperature’s turned up, the water flow drops right down and the shower feels weak, but if we turn it cooler the pressure suddenly improves. This is a fresh fitting and I'm thinking it might be indicative of a fault?

Asked by Elly on 1st Mar 2026
Expert Trade Answers
"Hello, it could be a number of things. It could be that the shower head or filter are blocked. It could also be the heating element is faulty. It’s normal for the pressure to drop abit, as the temperature goes up as the water will need to slow down to heat up if that makes sense. If the shower is old it may be worth just changing the whole unit."
Answered on 1st Mar 2026 - Member since Aug 2024 - report
"It could be a blockage in the system's microfilter, or a problem with the system's thermostat adjustment."
Answered on 1st Mar 2026 - Member since Oct 2025 - report
"It’s likely the power cable supplying your power shower is not sized correctly causing the power to drop when you require hot water."
Answered on 1st Mar 2026 - Member since Nov 2025 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year