we have a Mira Zest 8.5Kw shower which has developed a problem. I can switch the power supply on using a cord pulled switch, turn the shower on but only get cold water regardless of the temperature setting. I have checked the thermal switch and get continuity, and high resistances in the heating elements. Is there anything else i can check. Water pressure is normal.
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Mira electric shower problem
- Thread starter Bayardmm
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Run the shower for approx 2-3 minutes, do you get a kettling sound when finished?
How high a resistance?
See page 9 https://ia601909.us.archive.org/23/...8dc1/5e31e18b-3deb-4c21-bcf1-aa70305a8dc1.pdf seems like you only have the pressure/power selector switch left that could be faulty. As long as you aren't losing a neutral some where. I'm presuming you have checked for 240v with a multi meter.
Yes I’ve got 240v. Is there a way to troubleshoot the selector switch. I have ordered one anyway as I can’t find a fault elsewhere. Failing that it’ll be a replacement, but finding one with a similar footprint may be difficult. I’ve noticed the current Mira showers have fixing screws in different places.
Glad it's sorted! The 'assumptions' which seem the 'most obvious' often prove to be the correct one!
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