figured it out the APS and the CH thermistor Part number 0007TER05005/0
where both faulty.
Well the APS i may have damaged as the red light only appeared after blowing in to it
no boiler was purchased about 2 weeks before ravenheat extended there warranty.
To be honest great boiler but...
Hi i have a csi85 boiler in witch the red overheat light comes on 20 seconds after turning boiler on,
So far i have done the following blow in to the APS.
cleaned the CH thermostat.
If i disconect the thermostats the light still comes on is this correct or should it not.
I think it could...