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« on: December 05, 2013, 09:31:14 am »
GOOD MORNING,
MY CLEAN BURN HAS BEEN RUNNING LIKE A CHARM SINCE 2004 WITH NORMAL PERIODIC MAINTENANCE.BEST MONEY I EVER SPENT.ALL OF A SUDDEN AT THE BEGINNING OF THIS HEATING SEASON,IT STARTED SPUTTERING,LIKE MAYBE SOMEONE HAD DONATED SOME NOT SO GOOD FUEL TO ME.THE OIL PRESSURE GUAGE WOULD FLUCTUATE TO 4 PSI AND THEN DROP TO ZERO AND THEN SHUT DOWN.IT WOULD TRY TO RESTART,BUT I WOULD HAVE TO GET UP THERE TO MESS WITH THE PRESSURE ADJUSTER UNTIL IT FIRED.ONCE IT GOT TO TEMPERATURE,IT WOULD SHUT DOWN ,AND NEVER STAY RUNNING ON A RESTART WHEN TEMP IN SHOP DROPPED TO CALL FOR HEAT.SO FAR ,IT HAS HAD COMPLETE FUEL DELIVERY SYSTEM CLEANED STARTING WITH SCREEN ON TANK PIPE.I EVEN TOOK HEATER BLOCK ASSEMBLY OUT OF BURNER HOUSING,REMOVED ALL PLUGS,SOAKED IN SOLVENT,RAN A LONG DRILL THROUGH ALL THE PORTS,REASSEMBLED,INSTALLED,AND I GAINED NO IMPROVEMENT.STILL GOING ON THE IDEA OF "BAD FUEL",I DISCONNECTED THE TANK FEED AND I NOW AM TRYING TO RUN THE BURNER FROM A TANK OF BRAND NEW #2 FUEL OIL.NO CHANGE IN PERFORMANCE!SO,THAT PRETTY MUCH ELIMINATES THE BAD FUEL THEORY.
I PUT A NEW PRIMARY CONTROL ON IT BECAUSE THE RED RESET BUTTON HAD LOST PIECES,AND I FIGURED THAT SEEN AS HOW THIS FURNACE HAS BEENFLAWLESS,I DIDN'T MIND REPLACING IT.I INSTALLED A NEWER CARLIN PRIMARY WITH A DIGITAL READOUT FOR FAULTS.IT'S ALSO PROGRAMMABLE,AND STORES FAULT CODE HISTORY.WHEN THE HEATER SHUTS DOWN,FIRST IT READS "VALVE",AND THEN "NO MOTOR LOAD".I ASSUME THIS IS BECAUSE IT HAS NO OIL PRESSURE BECAUSE OF PUMP MOTOR SHUTDOWN.IN TAKING THINGS APART NUMEROUS TIMES IT HAS GOTTEN A NEW CAD CELL AND WIRES,A NEW IGNITOR,NEW ELECTRODE BECAUSE TIPS WERE PRETTY BURNED AFTER 10 YEARS.IT ALSO GOT A NEW PROVING SWITCH ON THE HEATER BLOCK BECAUSE THE BASE BROKE OFF DISASSEMBLING THE BLOCK FOR CLEANING.I DON'T THINK I'VE MISSED A THING,BUT IT STILL WON'T STAY RUNNING MORE THAN A MINUTE(SOMETIMES 5 SECONDS,IT VARIES.)DOES ANYONE OUT THERE HAVE ANY SUGGESTIONS?ALL RESPONSES GREATLY APPRECIATED.