Brand > Type > Error code > H.01.05

Error code: H.01.05

Cause

Maximum difference between supply temperature and return temperature

Maximum difference between supply and return temperature exceeded:

(1). No or too little flow:

Check flow (direction, pump, valves). Check water pressure. Check heat exchanger for contamination

   (2).  Sensorfout:

Check the proper functioning of the sensors. Check whether the sensor is properly mounted