Especially if you recently had work done on it and your tenants suspect that the a/c is the culprit.That is a good point to make - if the AC has a condensate pump, they can malfunction with the float inside the pump getting stuck and never rising - if float fails to rise, then the pump never kicks in to discharge the accumulated condensate liquid.

We have experienced this over and over where the owners are spending money on deductibles and then we have to send out our maintenance people to fix the problem.Our next problem came in the form of a malfunctioning air conditioner.

Plumber will come again and test but i have a feeling that the gauge might be malfunctioning.

A couple of my concerns are as follows:- If they malfunction and an incident happens outside my triplex.

Are you certain that the stove had malfunctioned and couldn't be reasonably repaired?

And it's easier for them to malfunction and having to be changed more frequently.

I'm actually right in the midst of doing one of these, so I don't know what my specific malfunction was that day.I do apologize for the confusion!

Tampa for 30 years and from the first days here, I have considered everything on the East side of I275 Hwy running North from Malfunction Junction, downtown, to be War Zone. 

I recognize that it can take some time to correct things, and then you have to do testing to evaluate whether anything else starts to malfunction due to a fix.

I repaired a malfunctioning garage door opener in one unit, ordered a replacement key-fob online, and gave it to the renter.