EmberGlo Model AR30 - Manual (Page 3)

EmberGlo A Division of Midco International Inc 8449 80
3
AR30 - Service
Service
Continued
Electric Switch/Thermostat
The on-off switch should audibly “click” when operated manually. To determine if electrically
operative, a continuity check should be made.
-
The thermostat is adjusted at the factory default setting. It is not recommended to re-adjust the
setting. If found defective it is recommended to replace.
Pump System
Operate pump lever and observe length of pump shaft travel. It should travel approximately 5/8″. If
travel is less, check for broken or disengaged pins, links, crank.
-
Disconnect brass fi tting at water riser tube and bend tube up slightly so discharging water will
clear front of unit. Operate pump lever; water should shoot out about 15 feet. If water does
not shoot out, remove and inspect inlet tube assembly for leaks. Any air entering tube will break
the suction on the water. Check installation and alignment of dip tube spring as detailed under
next section. If water still doesn’t not shoot out, pump should be replaced.
- A strainer is located in the inlet tube at pump fi tting. Loosen fi tting and remove pump inlet tube.
Dump strainer out of tube and wash under running water, then replace.
Dip Tube and Spring
If the dip tube does not enter the water pan properly it must be replaced. When replacing, the open
end or point of hook must be at the bottom and the eye must be in a vertical plane, like a coin
standing on edge.
Steam Generator
1. To Clean. Remove cabinet top and generator insulation. This will expose a square plate on the
generator, which is removable for cleaning water passages.
- Check the three exposed holes when the clean-out cover is removed. If any of these holes
are clogged, clean them out by hand-twisting a 7/64″ drill for the center hole and a 3/16″
drill for the two side holes.
- After thoroughly cleaning the three holes, plug in power supply and operate lever to steam
unit. THE UNIT MUST BE HOT. Operate several times to blow out any accumulation.
- Replace the clean out cover, using new gasket. With the unit hot, operate lever. The unit
should steam properly. If it does not, and the pump is operative as detailed under PUMP
SYSTEM, the entire generator assembly is probably limed and must be disassembled and
cleaned or replaced.
- To clean generator assembly, separate casting from plate and clean lime from cavity
in casting.
Caution: Do not damage plate by scratching or polishing the fi nish.
2. Information on use of the overheat label (8451-98)
Caution: To prevent accidental shock, disconnect electrical plug from receptacle
before attempting service.
- An overheat label is located on the clean-out cover of the steam generator. The triangle in
the center of the label, as shown below, is normally gold color. This triangle turns black at
450° F, indicating that the generator has overheated at least once. The operating
temperature of the generator should be between 350° and 400° F. If it is not, the thermostat
should be replaced.
Note: the overheat label will not return to its original gold color once it has turned black. It
should be scraped off and replaced so that
the thermostat can be monitored at all times.
In addition, in the event that the thermostat
has to be replaced, it is important to replace
the label immediately afterwards so that
someone at a later inspection will not sus-
pect a faulty thermostat.
3. To Remove.
- Disconnect the water riser tube.
- Disconnect electric wiring at the
two terminals.
- Remove 16 hex nuts. Note: Re
move food drawer and hold screws
up to prevent turning.
- Lift off generator.
450 232 C F CelsiDot
Overheat Label
Figure 2. Steam Generator Overheat Label Placement