You say you're a renter. You do not specify if these conditions were active at the time that you moved in to the property or are a recent occurrence. You also don't specify whether you caused any of these conditions. If they were pre-existing, I would suggest that in the future, you not accept occupancy on a home with these substandard issues. But at this point you have various remedies. And the first is to correct the condition, which is more important than if the rent is paid.
At each county courthouse there are legal aid offices to assist tenants for legal issues, or you can call an attorney. California is very sensitive to tenant issues. You can call and have the home deemed substandard which will red tag the property, causing fines to the landlord and requiring them to provide you alternative housing...provided you are paying rent. There are so many permutations to what you are describing.
If the pool is empty, why don't you fill it? If there are live wires, why not call an electrician to fix them and charge the landlord or deduct it from rent? We have not had many hot days recently but ithe home is required to provide heating ...I'm not sure about AC. Legal aid can better advise you, but I'd suggest you take some responsibility for fixing these items or moving out. Why would you stay in a home like this?