I have an old Baxi Bermuda 552 backboiler that just powers a one pipe radiator system and a fire. I have a Randall 103 timer switch and a Satchwell TLX2259 thermostat. The problem is there is no wiring at all going to or coming from either thermostat or timer.It has all been removed The only visible wire is a length of 3 core 3amp cable coming from the boiler which i guess is for the spark generator and a length of wire coming from the pump? There is also a switched fuse spur near the timer which i assume is where once the power source came from.I can access all parts quite easily. Can anybody advise on what wires need to go where. Do i need connector blocks etc.? Any advise or simple wiring diagram would be appreciated thanks.