Groen CC20-E Operator's Manual page 251

Maintenance
Test and Adjustments
Door Alignment (continued)
4. You should be able to pull a dollar bill or comparable piece of paper
smoothly between the gasket and oven cavity with the door closed.
To adjust the hinge side, loosen the door-to-hinge bolts and align the
door gasket with the oven cavity. Tighten the door to-hinge mounting
bolts. To adjust the bullet side, see page 8-36.
5. Operate oven in Steam mode and check for leaks.
Water Inlet Valve Electrical Checks
When oven power is turned on, there is high voltage present
in the electrical components compartment.
The water inlet valve for the CC10-E, CC20-E, and older CC10-G
units has two solenoids: one for boiler fill and one for condensate
spray. The CC10-G and CC20-G units, with auto clean, have a water
fill valve with three solenoids: one for boiler fill, one for condensate
spray, and one for the cleaning cycle.
Boiler Fill Solenoid
1. With the oven cool, door open, and boiler drained, select Steam
mode.
2. Verify that there is 24VAC between fill valve solenoid terminals WV1
and WV2. Refer to the schematic diagrams in sections CC10E,
CC20-E, CC10G, and CC20-G.
3A. If there is 24VAC measured across terminals WV1 and WV2, replace
the water inlet valve.
3B. If 24VAC is not measured across terminals WV1 and WV2, the
solenoid could be functioning properly and the problem could be
outside the water inlet valve. Perform relay check for relay K13 (see
page 8-3).
If relay K13 is functioning properly, perform the water inlet valve
mechanical checks (see page 8-7).
Condensate Spray Solenoid
1. Check for 24 VAC between condensate spray solenoid terminals
WV3 and WV4 in Steam or Combo mode. The following conditions
must exist to turn on the spray and take the voltage measurement.
Steam mode - Door closed, and timer operating or boiler water ready
and drain hot.
Combo mode - Door closed and boiler water at ready temperature.
8-6
WARNING
IMPORTANT
(Revised 1/02)