Im posting this in the hope of help/inspiration and to vent some steam (no pun intended!)
I have a Raveheat CSI 150 fitted about 4 years ago by my gas safe chap. It feeds the domestic hot water and an underfloor heating system on 2 floors. I had some initial boiler problems but follwoing these everything has run ok for 4 years. The property is rented out and when i got new tennants I paid for the underfloor heating installers maintenance partner to come to site, service the system and set all the controls up to suit the new tennant. the following day the boiler locked out showing error code 04 which is apparently overheat (set at +80 deg C I believe). I got the underfloor guys back out but they could find no problem and offer no suggestion why the error could happen. over a period from this date error code 04 has constantly re-ocurred. Ravenheat have blamed the underflor heating system consistently but cannot offer an explanation as to how the underfloor could cause the error. Ravenheat and the underfloor guys have been on site about half a dozen times and the problem persists. ravenheat have replaced all the sensors/thermistors twice, the board twice and the wiring between, and have flushed the heat exchanger. for my part i have replaced the auto bypass valve between the boiler flow/return and the underfloor system. the underfloor is a Velta system and comprises a blending station including 3 port valve, grundfoss pump, some electronics, miles of pipe and two manifolds with solenoid valves. as best i understand error code 04 menas that water is getting back to the boiler at a higher temp than its trip point (+80?). however the boiler output is only set at +45 as this is all the underfloor needs. regardless of any malfunction with the underfloor system how can water leave the boiler at 45 and arrive back at above 80? Ths has been going on for 8 months now and as its summer its less of an issue but winter will cause the issue to arise again. we still get the boiler locking out on error 04 now when the heating isnt running but the DHW is so this also convinces me its a boiler fault. Ive written to Ravenheat asking them to explain how the underfloor heating system can cause the problem but the best they can offer is that they've replaced all the parts associated with generating error code 04 so it cant be the boiler. Im looking at having to rip out and bin a 4 year old boiler without any understanding of what the problem really is and as a comnsumer im stuck between the boiler manufacturer and the underfloor manufacturer who point at each other. any ideas/thoughts/suggestions or experince with ravenheat error code 04????
cheers for reading my rambling post!
I have a Raveheat CSI 150 fitted about 4 years ago by my gas safe chap. It feeds the domestic hot water and an underfloor heating system on 2 floors. I had some initial boiler problems but follwoing these everything has run ok for 4 years. The property is rented out and when i got new tennants I paid for the underfloor heating installers maintenance partner to come to site, service the system and set all the controls up to suit the new tennant. the following day the boiler locked out showing error code 04 which is apparently overheat (set at +80 deg C I believe). I got the underfloor guys back out but they could find no problem and offer no suggestion why the error could happen. over a period from this date error code 04 has constantly re-ocurred. Ravenheat have blamed the underflor heating system consistently but cannot offer an explanation as to how the underfloor could cause the error. Ravenheat and the underfloor guys have been on site about half a dozen times and the problem persists. ravenheat have replaced all the sensors/thermistors twice, the board twice and the wiring between, and have flushed the heat exchanger. for my part i have replaced the auto bypass valve between the boiler flow/return and the underfloor system. the underfloor is a Velta system and comprises a blending station including 3 port valve, grundfoss pump, some electronics, miles of pipe and two manifolds with solenoid valves. as best i understand error code 04 menas that water is getting back to the boiler at a higher temp than its trip point (+80?). however the boiler output is only set at +45 as this is all the underfloor needs. regardless of any malfunction with the underfloor system how can water leave the boiler at 45 and arrive back at above 80? Ths has been going on for 8 months now and as its summer its less of an issue but winter will cause the issue to arise again. we still get the boiler locking out on error 04 now when the heating isnt running but the DHW is so this also convinces me its a boiler fault. Ive written to Ravenheat asking them to explain how the underfloor heating system can cause the problem but the best they can offer is that they've replaced all the parts associated with generating error code 04 so it cant be the boiler. Im looking at having to rip out and bin a 4 year old boiler without any understanding of what the problem really is and as a comnsumer im stuck between the boiler manufacturer and the underfloor manufacturer who point at each other. any ideas/thoughts/suggestions or experince with ravenheat error code 04????
cheers for reading my rambling post!
