I would have thought if the continuity checks out on the gas valve, the engineer then tested the pcb? Boilers were built as early as the st century. What's the cost of replacing your boiler? Although a small and minimal addition to any hydronic heating installation, radiator valves are a necessary component when it comes to all radiator purchases these small dials marginally.
Added: 2020-05-14 | Comments: 0 | Category: one