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Page 18
TROUBLE CAUSE REMEDY
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, check
operation of solenoid valve by advancing thermo-
stat.
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.
Refer to Installation Manual for proper steam pipe
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 functioning improperly.
Check voltage to damper motors.
Adjust dampers to close when calling for heat.
Defective timer
Valve closed
Steam trap blocked
Solenoid valve
Thermostat
Check valve installed
incorrectly
Strainer clogged
Steam piping installed
incorrectly
Trap not functioning
Dampers not operating
correctly
Dryer does not stop at
end of time period (6).
Dryer runs no steam to
coils.
Water in steam line.
No heat to drum
Troubleshooting Chart