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Troubleshooting Chart—Gas, Steam, and Electric Dryers
Replace orifices. Check factory for correct size.
Make-up air must be 4 to 6 times the exhaust area of the
dryer.
Remove lint.
Must be full OPEN or replace.
Adjust gas pressure as specified on Rating Plate.
Check Service section for recommended sizes. Remove
obstructions or lint build up from duct work. NEVER use
smaller size exhaust duct. ALWAYS use larger size.
Replace thermostat.
Replace timer.
Check all valves in steam supply and return. Make sure they
are OPEN.
Remove and clean. Replace if defective.
On dryers using solenoid temperature control, thermostat
controls operation of Solenoid Valve by advancing
thermostat.
On dryers using solenoid temperature control, thermostat
controls operation of Solenoid Valve. If defective, replace
thermostat.
Check for inlet and outlet marking on Check Valve and
invert if necessary.
Remove plug and blow down Strainer or remove and clean
thoroughly if heavily clogged.
Check piping per Steam Installation Instructions.
Check trap for size and capacity. If dirty and sluggish, clean
thoroughly or replace. Check return line for high back
pressure, or another trap charging against the trap function-
ing improperly.
Check timer to see if operating.
Dryer too hot.
Dryer does not stop at end
of time period (6).
Dryer runs no steam to
coils.
Water in Steam Line.
Basket does not reverse.
Incorrect Main Burner
orifice.
Inadequate make-up
air.
Lint accumulated.
Exhaust duct
dampers.
High gas pressure.
Partially restricted or
inadequately sized
exhaust system.
Defective thermostat.
Defective timer.
Valve CLOSED.
Steam Trap blocked.
Solenoid Valve.
Thermostat.
Check Valve installed
incorrectly.
Strainer clogged.
Steam Piping
installed incorrectly.
Trap not functioning.
Reversing timer.
TROUBLE CAUSE REMEDY