Magnus Maintenance

Breaker blown at water heater multiple times. NO hot water for guests!
Reset the internal breakers and got the requisite shocks each time.

Turns out the internal thermostats on these tankless water heaters start to fail intermittently prior to the unit failing, however, the fix to replace those is cost prohibitive, cheaper and more cost efficient to replace the unit. 3 of the top 5 units are Rheem..
Never had another issue since, new energy efficient unit, will probably last 10+ years.

After the long hot summer, before the cold nights come and the heater starts pushing warm air all throughout the house, remember to check the HVAC air filter.A dirty or clogged air filter can force your HVAC unit to work much harder than it needs to. It may even allow some particles to get through that you dont want your family inhaling, as well as possibly reducing the life of a very expensive to replace or repair unit.

Furnace Air Filter - How to Change It Properly Replacing your furnace or AC air filter is actually pretty simple to do. I'll guide you through all that you need to know to do the job right. ...