E
Emile
Iv had my combi boiler (Vaillant ecoTec pro 24)& Salus RT500RF wireless thermostat installed for 3/4 years. My boiler turns on & off by its self in the night when it should be off & turns on & off for 10-15 mins at a time when it should be on not giving my centrel heating system enough time to heat up. I would appreciate any help.