
I'm sure someone on here will know the answer...
We have a Mira Sport 7.5KW electric shower - not the latest model, but the one before
(this one). Has been working perfectly, but from this morning it's
decided to work for a second or two after pressing the button, then stopping. It keeps working if I hold the button in (but not easy to shower
yourself in this position!)
So far I've tried the following:
1. Put the controls in all sorts of positions - flow control to max & min, heat to max & min. No change.
2. Taken the shower head off, in case it's blocked. No change.
Tomorrow I plan to check the inlet filter, but I did that 6 months ago and it was clear, despite running for many years before - not saying that
isn't the problem, but I don't expect to find it blocked.
Done a bit of googling and found the Mira site - they suggest that it may be a scaled-up heating element, or possibly the flow valve, but as these are
£84 and £64 respectively I don't want to try one out and find it's not the problem! Especially if the real cause is an £18 solenoid...
Common-sense says that I should replace the whole thing - but that's around £300 plus fitting, and I'd hate to pay out and find it could
have been fixed for much less.
So - anyone here got any experience of these? If so, any other ideas? and how hard is it to fit these replacement parts? (Note: I have a fair amount
of experience with electrickery, and tend to be super-cautious).
[Edited on 28/2/13 by David Jenkins]
Does it have a low pressure shut off valve ? I've known them to stick fooling the system into shutdown.
Also the main water inlet solenoid valves fail, from experience especially Eaton ones.
quote:
Originally posted by David Jenkins
Common-sense says that I should replace the whole thing
...and just to be awkward, it worked perfectly this morning! I hate chasing intermittent faults.
I turned the temperature down to minimum while it was running, to get maximum flow rate - it was flowing strongly, which suggests that it's not a
furred up heating element.
[Edited on 1/3/13 by David Jenkins]
If there is a relay on the board it could be worth checking it's contacts for corrosion.
quote:
Originally posted by David Jenkins
...and just to be awkward, it worked perfectly this morning! I hate chasing intermittent faults.![]()
I turned the temperature down to minimum while it was running, to get maximum flow rate - it was flowing strongly, which suggests that it's not a furred up heating element.
[Edited on 1/3/13 by David Jenkins]
Might seem silly but if it only works when you hold in the button, I would ask myself; what's not latching, the switch or a relay? Surely it has to be as simple as a replacement switch or relay if that's how it latches and everything else seems to work ok.