12
P/N 1010678 Rev. K 08/12
Problem
Possible Cause
Corrective Action
Unit heats but there is little or no
steam produced and/or
The product requires more steaming
than usual.
Water Line Valve is closed (DFW/DFWT/DFWF-
200/250).
Check that the Water Line Valve is open.
Filter Strainer and/or Spray Tube is restricted.
Check and clean the Filter Strainer and Spray Tube
as described in the Maintenance section of this
manual.
Quick Disconnect is not fully engaged at the rear of
the unit or is damaged (DFW/DFWT/DFWF-200/250).
Remove and re-engage the Quick Disconnect firmly
until it clicks into place. Replace if damaged.
Low or no water pressure in the water line (DFW/
DFWT/DFWF-200/250).
Remove the Quick Disconnect Insert from the rear
of the unit. While holding over an empty cup, press
the white plastic tip. Strong, steady water flow
should be noted. If so, re-engage firmly into unit. If
not present or pressure is low, contact your mainte-
nance person or plumber.
Improper water pressure to unit (DFW/DFWT/DFWF-
200/250).
Verify that a Water Pressure Regulator is installed
and set to 20–25 psi.
Unit is not being cleaned properly (daily/monthly).
Clean the unit daily and monthly as described in the
Maintenance section of this manual.
Programming and/or SHO, H2O values were adjusted/
changed improperly
(Timer Models only)
.
Reprogram the SHO and H2O values as described in
the Programming section of this manual.
Insufficient or excessive calcium/mineral deposits on
the Generator surface.
Verify that a thin layer of calcium/mineral deposits
is present on the Generator surface. Refer to the
Maintenance section of this manual.
Generator surface is bare.
The Generator surface must have a thin coating of
calcium/mineral deposits for proper steaming. Refer
to the Maintenance section of this manual.
The Water Pump’s rubber hoses are pinched or
kinked (DFW/DFWT-100/150).
Straighten and reposition the rubber hoses.
Top Cover Gasket is worn and/or cover is out of
adjustment.
If noticeable steam escapes around the Cover,
replace the gasket and/or adjust the Cover accord-
ing to the Maintenance section of this manual.
Generator Diffuser is missing.
Install Generator Diffuser or replace if missing.
Generator surface temperature is too low.
Verify that the Generator surface temperature is
380°F–420°F (193°C–215°C).
Excessive condensation in Food
Compartment.
Water pressure is too high (DFW/DFWT/DFWF-
200/250).
Verify that the Water Pressure Regulator is set to
20–25 psi. Adjust accordingly.
Programming and or SHO and H2O values were
adjusted improperly
(Timer Models only)
.
Reprogram the SHO and H2O values as described in
the Programming section of this manual.
Excessive Steam escapes from front or
sides of steamer.
Worn or damaged Top Cover Gasket.
Replace Top Cover Gasket.
Top Cover out of adjustment.
Adjust Top Cover according to the Maintenance
section of this manual.
TROUBLESHOOTING (continued)
