hydronic heating system problem

Bababue

I have a loop system that is malfunctioning. It is a 4 zone system. The oil fired burner seems to be working correctly at the moment but as soon as the water reaches temp the burner shuts down. The zones are calling for heat but it seems as if the honeywell control does not recognize that fact. The pumps wont operate. HELP... getting cold here.

ScottMP

You

have a control issuie and need to hire a contractor to diagnose what control has failed and replace it.

That is ocnsidering this is a system that has operated fine for a few years.

Either that or someone shut off the switchs going to the circulators.

Scott

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jim sokolovic

More info would help...

This system is presumably not newly installed, no wiring has been changed (particularly by Howard Stern), and worked properly before? Each of the zones has it's own pump? None of the pumps run? How many switching relays, or other method of pump control utilized? Honeywell control model? Answers should narrow down the problem.

Weezbo

Manual open the zone valves....

you should hear a Click...during or shortly there after the circ should then be running if not, then likely there is a wire nut disconnected at the pump, the relay is fried the capasitor on the pump is fried or the wire is broken from the control to the pump or the pump is bound....so, if you have an extention cord,....and you want to find out right quick if it is the pump,turn the power off to the boiler open the zone valves turn the wire nuts off the pump plug the extention cord into the wires on the pump...if it starts and heat comes back on the open zone valves it isnt a pump problem....if you put the wire nuts,one each wire, on the two wires comming into the pump from the control,...you can then turn the boiler back on....call someone for some help as the boiler will warm up the rooms in the next 4 hours or so to like way hot:)