Service Instructions
WARNING
Burn Hazard
■ Heater surfaces are hot for a period of time after
the heater has been shut down.
■ Allow the heater to cool before performing
service, maintenance, or cleaning.
■ Failure to follow this warning will result in burns
causing injury.
WARNING
Fire and Explosion Hazard
■ Do not disassemble or attempt to repair any
heater components.
■ All component parts must be replaced if defects
are found.
■ Failure to follow this warning will result in fire
or explosions, causing property damage, injury,
or death.
1. Disconnect the electrical supply before servicing
unless necessary for your service procedure.
2. Clean the heater's nozzle with compressed air or
a soft, dry rag. Do not use files, drills, broaches,
etc. to clean the nozzle hole. Doing so will enlarge
the hole, causing combustion or ignition problems.
Replace the nozzle if it cannot be cleaned properly.
3. The high limit switches, HEAT/VENT switch, and
thermostat can be tested by disconnecting the leads
at the component, and jumpering the leads together:
-- Reconnect the electrical supply and open fuel
supply valves.
-- If the heater lights, the component is defective
and must be replaced.
-- Do not leave the jumper on or operate the heater
if the part is defective. Replace the part immedi-
ately.
-- An alternate method for checking the compo-
nents is to perform a continuity check.
4. Open or remove the respective case panel for ac-
cess to fan related components.
5. For reassembly, reverse the respective service
procedure. Ensure all fuel connections are tightened
securely.
Foreman Ductable Oil Indirect-Fired Heater
6. After servicing, start the heater to ensure proper operation.
7. If any fan keys are lost during service, replacements are eas-
ily made by using 3/16 square x 1 in. bar stock. Otherwise
order part # 22955.
Drive Components
To get access to the main fan drive components, remove the
three hex bolts located under the heater frame.
Remove the rear panel by pulling it out and sliding it down.
Owner's Manual • Foreman
Hex Bolts
17