11
P/N 1010678 Rev. K 08/12
TROUBLESHOOTING
Problem
Possible Cause
Corrective Action
Control Display is blank (Power is on
but indicator light is off)
Timer Models Only
.
The power cord is not correctly plugged in.
Plug the power cord into the appropriate outlet.
The power cord and/or electrical plug is damaged.
Inspect electrical wire, plug, and receptacle.
The main electrical panel circuit breaker is off or has
tripped.
Reset circuit breaker. Contact your maintenance
person or Authorized Service Agency if it trips again.
Power Switch is inoperable.
Contact your maintenance person or Authorized
Service Agency for service.
Control Display is blank (Power is and
indicator light is on).
Timer Models Only
Control Board is inoperable.
Contact your maintenance person or Authorized
Service Agency for service.
Transformer is inoperable.
Loose, burnt, or broken wires in circuit.
Unit does not heat up (Power is on
and indicator light is on).
Hi-Limit Thermostat is tripped or inoperable.
Reset the Hi-Limit Thermostat according to the
Operations section of this manual. If the Hi-Limit
Thermostat requires continuous resetting, contact
your Authorized Service Agency for service.
Transformer is inoperable.
Solid State Relay is inoperable
Thermocouple is inoperable
(Timer Models Only)
.
Control Board is inoperable.
Steam Generator is inoperable.
Loose, burnt, or broken wires in circuit.
Thermistor is inoperable
(Non-Timer Models Only).
The unit’s main electrical panel circuit
breakers trips.
Damaged receptacle, plug, or cord or a loose connec-
tion or an internal component failure.
Turn power off, allow unit to cool to room tempera-
ture, and then restart the unit. Contact your main-
tenance person or Authorized Service Agency if the
condition repeats.
Circuit breaker is overloaded.
Water leaking inside electrical housing. Pinhole leak in robber hoses
(DFW/DFWT-100/150)
.
Replace hoses.
Loose or damaged water line tubes and/or fittings
inside electrical housing.
Tighten or replace tubes and/or fittings.
Water leaking at Male Quick
Disconnect Fitting while it is engaged
into steamer
(DFW/DFWT/DFWF-200/250)
The O-ring on the Male Quick Disconnect is dam-
aged.
Replace O-ring. Refer to the Maintenance section of
this manual (Figure 8).
“ERR” appears on the Control Display
(Timer Models only).
Programming and or SHO and H2O values were
adjusted/changed improperly
(Timer Models Only)
.
Reset the Control Board as described in the
Programming section of this manual. See Fault
Codes.
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test, and repair of electrical equipment should be performed by qualified
service personnel. The unit should be unplugged when servicing, except when electrical tests are required. Use extreme care during electrical circuit
tests. Live circuits will be exposed. If the troubleshooting steps listed below do not solve your machine’s problem, contact an Authorized Service
Agency for further assistance.
