Viessmann boiler error 378
Lately, there have been complaints from customers about error 378. There is a recommended solution to this problem.
Error 378 can be caused by a dirty heating element in the boiler. Simply clean it with soapy water and re-fit it back into place to fix the problem.
Error 378 is a boiler control code indicating the electronic control module has detected a fault condition. The fault may be caused by one of the following:
-A fault in the sensor wiring
-The boiler controller with a blown fuse
-Faulty or damaged sensor
The viessmann boiler error 378 is a display icon on the boiler control panel screen. This error has nothing to do with the physical operation of the boiler but can be caused by a fluke in the software.
People who find this error should contact their supplier or go to their website for information about this problem.
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