What is it burning and what controls , relays, aquastats etc, are on it?



"Fred" wrote in message
news:sK1Gf.5760$pY.269@trndny01...
I have a New Yorker hot water furnace that provides my baseboard heat and
my domestic hot water. The problem that I am having is the burner comes
on when it should and shuts down when it should and runs within the limits
set on the aquastat control. The problem is after the burner shuts down
upon reaching the proper temperature there is a delay and then it starts
again and runs 2-3 seconds and then shuts down. I have a burner service
contract and the system is maintained under this contract. The burner
service people cannot figure out what is going on with this problem. They
have replaced the aquastat control and checked all the settings to insure
they are properly set. This only happens during cold weather when it is
being used for heat and hot water. In the summer when it is used for the
hot water only, it runs ok. Has anyone else had a similar problem or any
ideas of what could cause this problem? Thanks in advance for any help or
suggestions that might solve this problem.