redring 500 switching on and off

[booner]

Hi, shower was intermittent, on for 5 secs then off, eventually it would stay on, however, after a few months of this, got a spark friend in but could not identify problem, now it has given up and I cannot switch it on at all, any takers?? Thanks steve

 

[booner]

Cancel that last bit, wife switched pull cord off without telling me, while I was working at it.

 

[seco services]

sounds like you have a faulty phased shut down relay.

 

[booner]

Seco services, thanks for the reply, is it a specialised job to fit a new one, as my time served electrician seemed unsure about the whole thing tbh?

 

[seco services]

No simple job, it's located next to the outlet pipe and the button, just 4 spade connection wires.

 

[booner]

Thsnks for the advice cheers

 

[booner]

Well ive replaced the part suggested, buti still have a similar problem,,problem seemed remedied initially, butnow the shower still switches off maybe half a dozen times, then stays on with something that sound's like (but im 100% certain it isnt) water hammer for upto 5 mins, then works fine, however the latest development is tha shower wont switch off unless I pull the cord, is it time for a new shower, bit annoying as ive replaced that part, any takers? Thanks in advance for any replies

 

[booner]

Or is there a way of bypassing phased shut down to remedy this problem, and just switch the shower to coolest setting to switch it off?

 

[booner]

Seco, help!!

 

[booner]

Its more temperamental than ever now, doesnt turn on first time, then on and back off, then on with stuttering water action, this is electrical cos I can see light goin on and off in new relay shutdown, any chance of a replybefore I give up and replace it

 

[booner]

........

 

[booner]

Pleas read comment above to see if you can shed any light cheers

 

[AlanE]

DON'T bypass anything.

Have you tried descaling the shower internals?

 

[booner]

No, not sure how to do that tbh, but thanks for replying

 

[seco services]

The only other electrical part it can be is the solenoid coil failing.
Can you check the resistance of the coil with a multi meter.
Should be 3.5 kohms.

Only check with showers power off.

Can be a pain to check when they are failing intermittently.
and you fail to get a low reading.