Buderus Boilers Guide

All Buderus oil and gas boilers for your home including parts, troubleshooting and efficiency! Buderus 500, Buderus 600, Boulter Bonus, Boulter Economy Combi and Eco System

Buderus Boiler G115 out of control for heating

Hi Guys,

I have  a Buderus boiler model G115, and it is almost 6 years old- not covered by the warranty. I have no heating from yesterday, I went to check what is wrong with the boiler and I can see that control panel display the message “DHW PROD ERR” I restarted the boiler. After this when opening the taps I could hear the DHW pump, but I can’t hear the loop pump at all- I mean in the last 24 hours, even when control panel indicated that it is working- there is no sound associated with it.  Any idea what may the problem?



Hi Rob, 

The heating pump would operate if there is a call from the room thermostat. It looks to me that you will need to get this one exchanged. If I were in your shoes I would check the connection of the room thermostat first- if it looks fine, I would do the full boiler reset to the factory values, if none of this work, replace the room thermostat and check all new connections



Back to top