Assuming you have an indirect water maker, and not just a coil in the
boiler: It will have an aquastat on it which is connected to a relay that
turns on the circulator. Depending upon make and model, these things can be
integral to the unit or placed on or near the boiler. Probably the easiest
thing to do is turn the aquastat up, open the circulator wiring box and see
if you have 120 volts on the circulator wires


"Platebanger" wrote in message
news:snQKf.8659$PL2.1667@trndny03...
Hi Folks, I run my hot water off off my oil fired boiler. I have plenty of
heat but no hot water in the house. I suspect it's the circulation pump.

What type of things can I check to determine or fix the problem ?

Thanks
Dick