Mira Essentials Manual Power Shower - post 2002

A: If the shower pump/motor is stopping when you turn the flow up then you could have a faulty potentiometer,

http://www.showerdoc.com/shower-spares/mira/power-showers/MIRA-453-12-Mira-Harness-Assembly-–-Concentric-–-Components-Identified-C-453-12

But I would check the filters for blockages also.

A: This would be the easiest change over #

http://www.showerdoc.com/showers/power-showers/mira/ZMIRA-1-1532-003-Mira-Event-XS-M-Manual-Power-Shower---White-Chrome 

Internal view

http://www.showerdoc.com/shower-spares/mira/MIRA-PARENT-102-Mira-Event-XS-Manual

Your shower,.
http://www.showerdoc.com/mira-parent-152-mira-essentials-manual-power-shower---post-2002

A: 

Most likely to be a faulty solenoid valve see below for how to check.

 

It may be your solenoid valve, you can check it if you have a multi meter, you should have a reading of at least k3.5 ohms, across the two terminals any less and you need a new valve. (Check the valve in the failed state.) (When it has stopped working!)

 

If there is power getting to the solenoid and it is not operating then there is a good chance that you have a faulty solenoid.

http://www.youtube.com/watch?v=NzJjzWqxesc

The video is intended as a guide and does not cover every shower.

 

If you don’t have a multimeter  we sell them  with a guide on how to use them for checking and testing the various parts of your shower.

 

Apart from helping to fix your shower, they are really useful for checking you have a power supply to appliances, for checking fuses and letting you know much power you have left in batteries

(So you will know if they are good or not) and lots of other jobs, in short they are well worth a few pounds

http://www.showerdoc.com/installation/electrical-products/SKYTRO-600-005-Digital-Multi-Tester

 

A: It comes as part of a kit

Here is the link

http://showerdoc.com/shower-spares/mira/MIRA-453-12-Mira-Harness-Assembly-–-Concentric-–-Components-Identified-C-453-12

A: If you click on the link below it will take you to an exploded diagram.
First check the inlet filters item 5 as this is the most likely cause, if they are clear then it is likely to be the cartridge which needs replaced and it can be ordered online via the same link.

http://www.showerdoc.com/shower-spares/mira/MIRA-PARENT-152-Mira-Essentials-Manual-Power-Shower---post-2002

A: Check that the hose is not kinked or collapsed internally and the showerhead is clear.
Check that inlet filters are clear.
If above all ok then it sounds like you need to replace the pump/motor assy which can be ordered online by clicking on the link below.

http://www.showerdoc.com/shower-spares/mira/MIRA-453-03-Motor-Pump-Assembly-R-components-identified-A

A: would suspect it is the solenoid valve, replacement can be ordered onlin by clicking on the link below.

http://www.showerdoc.com/shower-spares/mira/MIRA-453-13-Solenoid-Valve-Assembly-R-components-identified-D

Alastair