2
HEATER MAINTENANCE CHECKLIST
For Electric Forced Air Heaters
Heater Model: _________________________ Serial No.: ___________________________
Date of Maintenance: ___________________ Maintenance Done By: _________________
Comments: _________________________________________________________________
__________________________________________________________________________
WARNING
Disconnect heater from power supply at integral disconnect or fuse box before opening enclosures or servicing heater.
Lock the switch in the “OFF” (open) position and/or tag the switch to prevent unexpected power application.
IF INTEGRAL DISCONNECT IS BEING SERVICED, verify that power has been disconnected at fuse box or main panel.
Lock the switch in the “OFF” (open) position and/or tag the switch to prevent unexpected power application.
This heater should only be serviced by personnel with heating and hazardous location equipment experience.
Preventative Maintenance Grid
Regular Service
Severe Service
Annual
Start
Up
1
Month
3
Month
12
Month
Annual
Start
Up
1
Month
3
Month
12
Month
Clean:
Finned Tubes
Fan
Fan Guard
Motor
Louvers
Remove dust using compressed air.
Do not Spray with water or solvents.
Do not immerse in water or solvents.
X
X
X
Electrical
Check all terminal connections and
conductors.
Tighten loose connections.
Replace conductors with damaged insulation.
X
X
X
X
Inspect contactor contacts.
If badly pitted, burned or welded shut, replace
with factory supplied contactor.
X
X
X
Check Fuses
The Correct fuse rating and type are printed on
the circuit board. Always ensure a backup fuse is
available on the PCB
X
X
Mechanical
Check for fluid leakage
Inspect the Pressure Release Valve label indicator
for signs of rupture ad degradation. If any fluid
leakage occurs from the heater, disconnect it from
the power supply and have the core replaced
X
X
X
Check all enclosures
The interiors of each enclosure must be clean, dry
and free of foreign materials
X
X
X
Check motor shaft bearing play
If the motor does not run quietly and smoothly
and has excessive play replace the motor
X
X
X
