Redring Water dripping from the bottom of the showerwhat to check
Redring attribute this to the safety pressure relief having operated, and they are clear it is a replacement part rather than something that reseals.
Take care
What this means
Redring publish this as a plain owner-facing question and answer it in two parts, both of which matter. The first part is what has happened: the safety pressure relief may have operated, and it will need to be replaced. That is stated as a replacement rather than a reset, which is the single most useful thing about the entry, because it tells an owner immediately that no amount of switching off, cooling down or running cold will bring the shower back.
The device is a deliberately weak part designed to rupture and vent when pressure inside the unit rises past its limit, sacrificing itself to protect the tank and the fittings, and once it has gone it stays gone. The second part is why it operated, and Redring put the diagnosis before the repair rather than after it. Their instruction is to check the inlet mains water connection, and — if the pressure relief valve has operated — to check the hose and handset are not partially or fully blocked, adding that these would need to be replaced. That is the manufacturer saying, in their own words, that the blocked component is part of the repair rather than incidental to it.
Fitting a new relief device to a shower with the original blockage still in place gives you one more shower before the same thing happens. What Redring do not do here, and it is consistent with how they structure everything, is suggest the owner replaces the device. That check sits on the owner side; the replacement sits on the other.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Blocked or partially blocked handset | Redring name it directly and say it would need replacing. A scaled spray plate is the classic outlet restriction that bursts these devices. | Common |
| Blocked or restricted hose | Their second named check. A hose whose liner has collapsed can look perfect on the outside while the bore is effectively shut. | Common |
| Problem at the inlet mains water connection | Redring ask for this to be checked specifically, alongside the outlet checks, as part of establishing why pressure rose. | Occasional |
| Scale in the water path over years | The slow version. Nothing changes on the day it bursts; the outlet has been narrowing gradually until the threshold was crossed. | Occasional |
What to try yourself
Isolate the shower at the pull cord and close the water at the servicing valve, so it stops discharging while you look at it.
Water venting from the relief outlet can be hot. Let it run cold or let the unit stand before handling anything.Check the handset. Take it off, hold the spray plate to the light and see whether the holes are clear — Redring say a blocked one would need replacing.
Check the hose by running water through it on its own, off the shower. A collapsed liner is invisible from outside and it is Redring’s second named cause.
Replace whichever of the two is blocked before anything else happens. Redring treat that as part of the repair rather than as an optional extra.
Have the pressure relief replaced. Redring are explicit that it needs replacing rather than resetting, and it is not an owner-accessible part.
Get a qualified electrician to look at your Redring electric shower
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified electrician, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
£20–£160
Time on site
35 minutes
The relief device is inexpensive; the cost is the visit plus the blocked hose or handset that caused it, which Redring treat as part of the same repair.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Redring fault codes
- Poor spray pattern from the handsetUsually simple to fixRedring answer this with a spray plate clean and a mode change, and it is worth doing before it becomes one of the faults that costs money.Related: leaking
- Water too COLDGet it checkedRedring answer this with eight checks in a deliberate order, and the seventh is the one nobody guesses: run the shower cold to reset the cut-out.Related: same brand
- otGet it checkedOver Temperature Shutdown on a Selectronic: the water got too hot, so the shower stopped it. Purge it cold before restarting, and stop using the isolator to switch off.Related: same brand
- Shower cycles from HOT to COLDGet it checkedRedring name one cause: the temperature is set too high, so the thermal cut-out keeps operating. Their fix is a dial adjustment done slowly.Related: same brand
- Water too HOTGet it checkedRedring give six checks, and the one that distinguishes them is a filter inside the solenoid valve that other brands do not send you to.Related: same brand
- LPGet it checkedLP on a Selectronic Advanced means the water supply has dropped below two litres a minute. The shower has cut its heaters rather than boil a trickle.Related: same brand
Own a Redring electric shower? Save it and its codes come first next time.
Related guides
Common questions
Can the pressure relief be reset?
No. Redring state it will need to be replaced. It is a one-shot device that ruptures to vent pressure, and nothing reseals it — anything describing a reset is talking about the thermal cut-out instead.
Why do I have to replace the handset as well?
Because Redring identify it as the cause rather than a side issue: if the relief valve has operated, check the hose and handset are not blocked, and those would need to be replaced. A new relief device behind an unchanged blockage will burst again.
Is the shower usable in the meantime?
Not really. With the relief ruptured the water takes the easy route out of the vent instead of through the head, so you get little where you want it and a puddle where you do not.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.