Bard FH085D36E Installation Instructions Manual

Bard FH085D36E Installation Instructions Manual Manual pdf 34 page image

Manual 2100-422Page 32PUMP SQUEALS OR CHATTERSThis may be caused by air in pipes. Check all joints inthe oil supply pipe for leaks. Check strainer in pump; ifdirty, clean.INSUFFICIENT HEATCheck limit control setting. It may be that flame is notallowed to stay on long enough to generate sufficientheat in furnace to heat the house properly. If the propersize furnace has been selected according to houserequirements and satisfactory heat is not obtained,recheck the heating plant for size and capacity inrelation to house. Check for clogged filters.Check and make sure the heat anticipator on thethermostat is set correctly.CARE OF FINISHThis furnace cabinet is made with a very durable andcorrosion resistant finish. With normal cleaning it willlast for many years.CLEANING OF THE HEAT EXCHANGERAll of these units have four clean out plugs for easycleaning of the heat exchanger. They are accessiblefrom the front and back of these units by removing theclean out access cover in the burner compartment and atthe back of unit. The furnace should be checkedannually by a qualified service technician.WARNINGUnder no circumstance should a sootdeterioration device be used in thecombustion chamber. These products knownas “soot busters” or “soot sticks” arecomprised of chemicals that burn at very hightemperatures which may exceed thetemperature rating of the combustion chambermaterial.Use of these products are detrimental to thelife expectancy of the combustion chamberand will destroy the chamber. Refer to the“Cleaning of Furnace” section for propercleaning methods.COMMON CAUSES OF TROUBLECAUTIONTo avoid accidents, always open main switch(OFF position) when servicing the burner.BURNER WILL NOT PRODUCE FLAMECheck oil level gauge to see that there is sufficient oil intank or tanks. Check the burner mounted relay control.Do not adjust this control.Check position of electrodes – incorrect position willcause slow or delayed ignition. Clean electrodes andnozzle. Check and clean strainer in pump. If oil linefilter is used, check filter condition.If burner runs but there is no flame the fuel pump maybe air bound. Follow instructions for bleeding fuelpump.Check and make sure the solenoid valve on the oilpump is being energized and opening.BURNER STARTS OR STOPS TOO OFTENCheck heat anticipator setting on thermostat.NOZZLE PRODUCES A STRINGY FLAMEWorn tangential grooves in nozzle. Replace nozzle.BASEMENT TANK HUMOccasionally with a two-pipe installation there may bea low return line hum. Eliminate hum by installing aspecial anti-hum valve in the return line near pump.HEAVY FIRE OR PULSATING FLAME.These may occur after burner starts. It may be causedby a slight oil leak in the fuel pump and cannot becorrected except by replacing the pump. This happensonly when the burner is started.CHATTERING SOUND OR HIGH PITCH NOISEThis noise from motor can usually be traced to where aconduit or BX cable is fixed rigidly or attached to somepart of the building. Relieving this strain may eliminatenoise.