Finally got time off to check out why the heater blows cold all the time.
The recirculating pump is running and the pipe (link 167) is clear, water is heating up and passing through the heater.
I have stripped the duo valves and they seem to be ok BUT when i test the wires leading to the duo valves unit there is no power getting to it.
The fuse is ok and the recirculating pump is running.
Could this be a relay problem ( if so which one ) or a control unit fault ?
any info would be appreciated.
The recirculating pump is running and the pipe (link 167) is clear, water is heating up and passing through the heater.
I have stripped the duo valves and they seem to be ok BUT when i test the wires leading to the duo valves unit there is no power getting to it.
The fuse is ok and the recirculating pump is running.
Could this be a relay problem ( if so which one ) or a control unit fault ?
any info would be appreciated.
