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Odd burner recycle @ startup since control replaced with R7284
I have a WM SGO-5 with a Weil McClain EZpro burner. Recently my controller (r7148u) went in to lockout and would not start up. My tech replaced my R7148U with a R7284 and thankfully heat was restored. Since upgrading the R7284, I am finding that the burner is not starting up properly, it will always fire up once, go to trial for ignition, flame proven and then after a few seconds, it goes in to recycle mode, a 1 minute countdown and then finally when it starts up the second time it works. It appears to do this consistently every time the Tstat calls for heat. Once the burner is running, I am not having any issues with it shutting down and no errors are shown on the controller error display. After this sequence I described occurs.
Is there a simple setting misconfigured on the controller or is it possible that the replacement controller also has a problem or there is something else wrong? The nozzle was replaced a month or two ago, and again after the lockouts began, so it has already been replaced twice.
Thoughts are much appreciated.
Sequence (hopefully I wrote it down right):
Call for heat
Valve on delay
Trial for ignition
Flame proven - countdown begins and after a few seconds ...
Recycle - 1m countdown