Viessmann boiler error 78
When a boiler can’t keep up or runs inefficiently, it usually has one or more mechanical problems.
The first step is to inspect the boiler to see what type of problem it has. The second is to take note of any safety features that are not operating properly. The third step is to assess the seriousness of the problem and decide whether a service call is needed.
The viessmann boiler error 78 is typically caused by either a low water level or a clogged condensate drain hose.
The error code 78 is a fault code that is in the boiler. It can be triggered by some factors and confusing for an inexperienced appliance installer.
If you find yourself with this error code on your Viessmann boiler, don’t fret. There are five common causes for error 78; we’ll look at them below.
The most likely cause of error 78 on your Viessmann boiler is that the water level sensor picked up some leak or blockage in the system, preventing it from detecting water levels accurately. This is easily fixed by having a professional check out the system to find out if any damage or corrosion needs to be addressed – or simply unblocking or filling up the boiler tank if it’s empty. The next most likely cause of error 78 on your Viessmann boiler is that some power outage reset things to factory defaults and cleared out stored fault codes.
Viessmann boilers are a popular heating system for residential homes. The most common issue these boilers have is the error code 78. Which means the unit will not start to produce heat.
Error 78 can be caused by a few problems: Low water level, low input pressure, or insufficient gas supply. The first step to fixing this error is to check that there is enough water in the tank and enough gas pressure coming into the unit. If these two issues are not causing the problem, it could be an issue with a valve in your home’s water line or an issue with your thermostat wiring.
“Inspections, Installations, Repairs & Maintenance”