Private renting. Shower broken. Landlord obligation regardless of COVID-19?

[indemMUND]

Three days ago our electric shower broke. As in, requires the electric to be turned off before the on button will function but even then only runs freezing cold. We don't have a bath. Landlord was informed on the day it broke (Friday). The maintenance people that the Landlord uses called early today saying that they would try to get someone out to us today. At 2:30pm with no update, I called them. They said their man was out of area so it would be tomorrow now and he will come round at 8am to "assess the shower issue" but will be out of area again for the rest of the day. I'm concerned because the landlord and maintenance company left us for 5 months without a flushing toilet during the last lockdown. Apparently they had the part but "couldn't get it to us". With the latest lockdown kicking in on Thursday, I'm worried they'll use the same excuse.
A friend has tonight hooked us up with a hose going from bathroom tap into shower cubicle. No doubt the guy will take issue with that at 8am tomorrow. Surely toilets and showers are considered emergency repairs that the landlord has to fix? I can't go 5 months or however long without a working shower. Private rent. Any advice would be great.

Yes but unfortunately nearly everyone are at the mercy of their plumber, even owner occupiers. If it broke Friday I would say getting someone out Wednesday is fine. Hopefully they can repair or replace within the next week or two.

I know I'm very lucky with both my plumber and electrician who are very good at attending within 24/48 hours, but even then we have to wait for parts to arrive.

Forgot to answer your question, yes a landlord's obligations are not altered by lockdown or covid from the tenants perspective although routine inspection will not be carried out during lockdown.