I also feel like it's a good way for me to check in on the property in an appropriate way & opens a line of communication pretty regularly throughout the year with my tenant in case something is malfunctioning or not working right.

Three weeks ago the tenants reported that the pool/spa heater is malfunctioning.

In the interim, I want to practice some of the basic repair skills that I'll need to draw upon to be the sort of landlord who doesn't have to blow cash on a contractor every time the tiniest thing malfunctions. 

I have one outdoor jacuzzi in one of my rent houses and the saving grace is the renter is mechanically inclined and has fixed it when it had little malfunctions which is great for me.

There is serious potential to start a fire if there is a malfunction of the breaker or actual wiring issues.

What happens if the battery dies or the system malfunctions?

As you can imagine, if these items were to go down due to some mechanical malfunction or electrical surge, then the whole business/building is in a mess.   

Here is what I have so far:At any time before, during, after investment:I or any of my team unexpectedly dies, becomes seriously ill, or injuredAn impassable disagreement occurs between any 2 parties of the investment teamA member of the investment team fails(for any reason) to uphold their agreementBefore purchase:Incorrect property valuationInability to secure financing after earnestDuring Financing and purchase:Loan executor fails to follow through with the loan.Loan executor misleads or baits me with incorrect terms and conditionsSeller withdraws contractSeller tries to renegotiate contractSeller withdraws agreement to carry loanTitle issuesDuring rehabilitation:Cost overrun - If the cost to complete a rehab exceeds the estimated cost budgeted.Time overrun - If the allotted time to complete a rehab is exceededUnforseen issues - if issues arise due to unknown/hidden problems, termite damage, mold, etcProblematic Contractors - Contractors that want to increase the bid midway through the job, fail to pay their employees, don’t show up when scheduled, fail to consistently clean, low or no skill, do poor work, fail to carry proper insurance, do not use agreed upon materials and/or finishes, use the “you can’t see it from my house” methodology, dress and/or act not in accordance with accepted job site standards, live or sleep at the job site, steal materials, supplies, and/or tools, attempt to undermine my relationship with my real estate team including agents, investors, other contractors, clients or potential clients, places lien or sues, dies or is seriously injured during project, experiences major life event that prevents or hinders their ability to continue, contractor or their employee dies or is seriously injured on the property, gets OSHA or other governing body violation(s)Code Violations - Red flagged for failing to obtain proper building and/or work permits prior to beginning project, overgrown vegetation, etcProblems Specific to Rental Properties:Tenant does not pay rent or pays lateTenant does not pay utilities/trash serviceTenant causes damage to propertyTenant does not take care of maintenance and/or cleaning of propertyTenant smokes or has pets when these things are not allowedTenant makes unauthorized changes to the property, ie painting walls, removing landscaping.Tenant allows others to move in without adding them to the leaseTenant misused the property, ie drug lab, melting plastic in the oven, spray paint graffiti on shed, parks in unauthorized zones such as the grassSomeone injures themself while on propertyHouse fire, floods, other natural disasterMajor maintenance issues such as roof replacement, appliance malfunction, plumbing leak, etcTenant violates city code, ie noise ordinances, trash and debris in yard, etcUnavoidable costs such as normal wear and tear include failing appliances, scratched/scuffed wood floors, dirty paint, worn carpet, etc.After rehab:Property does not appraise and/or sell/rent for expected ARVInterest rates go higher than expectedProperty tax increaseStricter laws are put in place that prevent finance/refinanceThis is all that I could come up with.

I need to learn how to streamline these things otherwise I will have a major malfunction. 

Especially for safety issues such as a malfuncting stove.