CAN ANYONE HELP
I HAVE A VOKERA EXCELL SP 80 WHICH IS NOT GIVING ME HOT WATER ANYMORE. WHEN THE CH CALLS FOR IT IT WORKS BUT NOT WHEN I CALL FOR HOT WATER. A FRIEND HAS TOLD ME THAT THE FLOW DIAPHRAGM WEARS OUT QUITE QUICKLY ON THESE MODELS. COULD THAT BE THE PROBLEM OR IS IT SOMETHING MORE...
