
HARDY MANUFACTURING CO., INC (MODEL C3 & C5) PAGE 29
SECTION VII
HEATER MAINTENANCE
7-1
Preventative Maintenance
Preventative Maintenance can provide measurable improvements in system
performance as well as a marked reduction in comfort complaints. The customer
should always remain aware of preventative maintenance actions that could help them
avoid unnecessary shutdown time and save them repair expense.
Preventative Maintenance Checklist:
Ground Fault Interrupter Receptacle > Should be tested 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 in owners manual for proper checking 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.
Preseason Maintenance > Review preseason heater maintenance section in owners
manual prior to each heating season.
Summary of Contents for C3
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