I have a Ravenheat CSI85 Combination Boiler. It was installed 4 years ago by a CORGI registered installer. All the rads and pipe-work were new (flat previously had storage heaters). System wash powerflushed and X100 inhibitor added. It is a sealed system. It has an external timer and thermostat fitted. Now out of warranty period.
A couple of weeks ago I came home and my electrics had tripped at the RCD in the fusebox. I traced this to the boiler/central heating.
Every time the timer came on it would trip the electrics. I replaced the timer with a new one. Same thing happened.
I opted for a fixed price repair from Homeserve. A contractor came. The only way he could get the electricity to stay on was to disconnect the external timer from within the boiler. I now have central heating however it is purely controlled by the room stat, no timer. When the room stat calls for heat the boiler also seems to wait for several seconds now before beginning it's start up process and firing. Sometimes it doesn't even do this.
Regarding the Hot water; The diverter is operating the microswitch, but the pump doesn't run. The plumber changed the Thermistor. This has not cured the problem.
He then declared it to be the PCB or Wiring harness.
Homeserve now say this is chargeable and not included in the fixed price as that only coved the first fault they found - the thermistor.
Form reading posts on this forum I can see they aren't necessarily the best boilers, but at the time all I could afford!
Before I complete/commission any more work on it I would like some of your opinions, is it likiley to be the PCB or could it be something else?
Many thanks in advance.
Stephen
A couple of weeks ago I came home and my electrics had tripped at the RCD in the fusebox. I traced this to the boiler/central heating.
Every time the timer came on it would trip the electrics. I replaced the timer with a new one. Same thing happened.
I opted for a fixed price repair from Homeserve. A contractor came. The only way he could get the electricity to stay on was to disconnect the external timer from within the boiler. I now have central heating however it is purely controlled by the room stat, no timer. When the room stat calls for heat the boiler also seems to wait for several seconds now before beginning it's start up process and firing. Sometimes it doesn't even do this.
Regarding the Hot water; The diverter is operating the microswitch, but the pump doesn't run. The plumber changed the Thermistor. This has not cured the problem.
He then declared it to be the PCB or Wiring harness.
Homeserve now say this is chargeable and not included in the fixed price as that only coved the first fault they found - the thermistor.
Form reading posts on this forum I can see they aren't necessarily the best boilers, but at the time all I could afford!
Before I complete/commission any more work on it I would like some of your opinions, is it likiley to be the PCB or could it be something else?
Many thanks in advance.
Stephen