SERVICE INFORMATION
SECTION 6:
MODELS: GC-2 & GC-3
CABINET CONTROL PROBLEMS
Safety Relief Valve blows and releases steam frequently
The Safety Relief Valve is set at 15 p.s.1. and is a protective device intended to prevent
pressure from exceeding 15 p.s.i. in the Boiler. During the operating cycle, observe the
fluctuating pressure range as indicated on the Pressure Gauge located directly on top of the
Water Level Control. The fluctuating range should read approximately 9 to 12 p.s.i. during a
normal operating cycle and if the Safety Relief Valve blows prematurely then assume it must
be defective and requires replacement.
However, if the pressure reading, indicated on the Pressure Gauge, approaches 15 p.s.i,, then
lower adjustment of the Pressure Switches are required. Remove Cover from Generator
Control Box and locate both switches at bottom left side on Control Box. When facing Pressure
Switch in the upright position, the adjusting nut on the higher top point to the back controls the
high pressure setting of that switch and the adjusting nut on the tower top surface to the front
of the switch controls the low pressure setting of that switch. Both nuts when turned counter
clockwise with either a 1/4" wrench or slotted screwdriver will tower the pressure settings.
Refer to Periodic Maintenance Section 4, for proper pressure settings. Each nut should be
turned slightly and the pressure reading on the Gauge observed before adjusting the next nut
unnecessarily.
Water is not being supplied to Boiler
When the appliance is first turned ON, and assuming that water supply is definitely available to
the appliance, and after 20 minutes no water can be observed in the Water Gauge Assembly,
then either the Solenoid (Hot Water) Valve is defective or is incapable of being energized by
the Water Level Control. As mentioned previously, the float within the chamber of the Water
Level Control may be seized up and remain stuck in the upper position by sealant thereby
falsely indicating sufficient water is present in the Boiler. The Water Level Control Assembly
must be detached, removed and thoroughly cleansed to remove sealants and lime build up.
Refer to Boiler on Removal of Sealants etc.. This malfunction indicates extremely poor water
quality being supplied to the appliance and must be attended to immediately to avoid complete
breakdown of the appliance.
Another possibility is that as quickly as water is fed to the Boiler it is being drained through an
open Boiler Blow down Solenoid Valve which cannot close since it is not being energized either
through defective wiring or a burnt out coil.
This valve is similar in construction to the Exhaust Solenoid Valve mentioned previously and
may malfunction due to sealants lodging in the pocket of the valve. Refer to page 17 Cooker
Problems - "Water accumulation in the bottom of compartment" - for procedure of cleaning this
valve.
20
Summary of Contents for CQ-325S
Page 10: ...PERIODIC MAINTENANCE SECTION 4 MODELS GC 2 GC 3 FIG 2 SIDE VIEW 8 ...
Page 14: ...PERIODIC MAINTENANCE SECTION 4 MODELS 6C 2 GC 3 FIG 3 12 EXHAUST TO DRAIN STEAM IN ...
Page 25: ...PARTS LIST SECTION 7 COMPARTMENT DOOR ASSEMBLY FIG 4 23 ...
Page 28: ...PARTS LIST SECTION 7 COOKER ASSEMBLY FIG 5 25 ...
Page 30: ...PARTS LIST SECTION 7 COOKER CONTROLS FIG 6 27 ...
Page 32: ...PARTS LIST MODELS GC 2 GC 3 SECTION 7 CABINET FIG 7 29 ...
Page 34: ...PARTS LIST SECTION 7 MODELS GC 2 GC 3 GENERATOR CONTROL BOX ASSEMBLY FIG 8 31 OVERRIDE ...
Page 36: ...PARTS LIST SECTION 7 MODELS GC 2 GC 3 GDA 2 GHD 2 GENERATOR ASSEMBLY FIG 9 33 ...
Page 40: ...WIRING DIAGRAM 37 SECTION 8 MODELS GC 2 GC 3 ...
Page 41: ...WIRING DIAGRAM SECTION 8 MODEL GDA 2 38 ...
Page 42: ...WIRING DIAGRAM 39 SECTION 8 MODEL GHD 2 ...
Page 43: ...WIRING DIAGRAM MODELS EDA 2 SCDA 2 GDA 2 DDA 2 SECTION 9 SUPPLEMENT ...
