HARDY MANUFACTURING CO., INC (MODEL LC300, LC500 & LC2500)
PAGE 32
SECTION VII
HEATER MAINTENANCE
7-1
Preventative Maintenance
Preventative maintenance can provide improvements in system performance as well
as a marked reduction in comfort complaints. The customer should perform
preventative maintenance actions to avoid unnecessary shutdown time and save
repair expenses.
Preventative Maintenance Checklist:
Ground Fault Interrupter Receptacle > Test monthly to insure proper and safe
operation. (a) Check with a circuit tester to determine if the polarity is correct. (b) Press
the test button, the reset button should pop out indicating the interrupter has tripped.
Press the reset button to restore to normal operation.
Heater Piping > Check all piping occasionally on back of heater for any possible water
leaks. Water leaks on heater components can cause electrical shorts, damage to
component parts and insulation.
Low Water Light >Check the low water warning light each week for proper operation to
avoid low water or over filling in heater with electric make-up water systems. See
service information (section VI) in owners manual for approved procedures.
Ash Bin > Keep ash bin from ash buildup. Remove ashes before they build up to the
level of the grates. This will restrict proper air flow and cause the grates to warp. Leave
at least 1/2” to 1” of ashes in bottom of ash pan to protect the bottom from burnout.
Damper/Draft System and Smoke Stack > Check at least every two weeks for build up
of ash, tar, or any other material that could restrict the amount of air flow required. Oil
the blower motor bearings prior to each heating season with 10 to 20 drops of electric
motor oil.
Door Seals > Check firebox door and ash door seals occasionally for damage or
obstructions that would affect an airtight seal.
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