EmberGlo AR60 Installation Manual

Troubleshooting
Guide
EmberGlo Model AR60
EmberGlo
A Division of Midco International Inc.
4140 West Victoria Street Chicago, Illinois 60646 tel 773.604.8700 fax 773.604.4070 web www.emberglo.com
Quality Designed for Proven Performance
WARNING:
Unplug power supply cord before removing top and back. Procedures described in this booklet are to be done with unit disconnected from power source.
PRINTED IN U.S.A.
1098
8471-08
Operation overview
Operational guidelines 1
Problems
Unit will not heat up and light is out 1
Unit will not heat up and light is on 1
Unit heats up but does not steam— water system problem 2
Unit Heats up but does not steam— generator problem 3 & 4
Unit steams but food is wet or soggy 4
Unit steams but very slowly 4
Schematic drawings
AR60 Internal Wiring 4
AR60 Exploded View 5
Replacement parts
AR60 Parts and Hardware List 6
Contents
EmberGlo Model AR60
Operational Guidelines
For maximum performance of Model AR60 the following recommendations should be followed.
1. Use distilled water only.
Most areas of the country require use of room temperature distilled water otherwise the generator will become clogged with mineral deposits. Do not use cleaners, de-limers or other chemicals in the steamer.
2. Keep water pan clean.
Food particles and debris will restrict or stop the amount of water reaching the generator. A strainer inside pump inlet tube will collect any foreign matter and should be checked periodically to see if water supply is being kept clean.
3. Allow steamer to heat up for 20 minutes before using.
This helps reduce condensate and poor performance.
4. Keep drawer closed when not in use.
This keeps the food pan hot and reduces condensation in the steam chamber.
5. Avoid over-pumping.
The steamer is designed to steam once every 20 seconds. Constant pumping more frequently than this will reduce the performance or even cause generator flooding.
1
Unit Will Not Heat Up and Light Is Out
(See Figure 1)
1. Unit is unplugged.
Plug unit in.
2. No power to outlet.
Check voltage at outlet. It should be 115-120 volts. If there is no voltage, then problem is in building circuit.
3. Defective switch.
Check continuity through switch. If there is no continuity, then replace switch.
4. Loose or broken wire.
Check continuity from cord plug to switch, from switch to thermostat, from thermostat to element, from element back to plug. Tighten loose screws or replace defective cord or wire.
Be sure white (neutral) is connected to non-switched terminal of power switch.
Figure 1
Unit Will Not Heat Up and Light Is On
1. Defective thermostat.
Check continuity across thermostat when unit is off and at room temperature. If there is no continuity, then replace thermostat. Thermostat is normally closed and opens at 350°F. Thermostat is not repairable.
2. Defective generator element.
Check continuity at element terminals. An ohmmeter check across element terminals should read about 10 . If no continuity, then replace generator.
3. Loose or broken wire.
Check continuity between switch and thermostat and thermostat and element. Tighten screws or replace open wire.
(See Figure 2).
Figure 2
2
Unit Heats Up But Does Not Steam— Water System Problem
1. No water in pan or water below inlet tube.
Fill water pan to about 1/4" of top of water pan baffles. The water pan will comfortably hold about 3
1
/4quarts of water. This is enough water to operate the steamer constantly at maximum capacity for about two hours.
(See Figure 3).
Figure 3
Figure 5
Figure 4
2
4
3
2. Crank or linkage defective or disengaged.
(See Figure 4).
Remove top and rear panels, then operate pump handle and observe pump shaft at rear of unit. Pump shaft should move about
7
/8" as handle is depressed. Spring should return handle to upright position. Replace defective or worn parts or reconnect disengaged parts.
3. Clogged pump strainer.
Loosen inlet check nut and remove strainer. Clean strainer and reassemble.
4. Leak in pump tube assembly.
Remove pump tube assembly and look for cracks or holes in plastic tube. Replace if defective.
(Note: The open end of dip tube spring hook must be at bottom of water pan.)
5. Defective pump.
(See Figure 5)
The pump is constructed with ball and spring check valves. The valves may be inspected by removing pump from machine and then disassembling valves. Look for broken springs, damaged balls and damaged or worn seats. Sometimes just a tiny particle on the ball seat can cause problems. Clean seats, replace defective parts and reassemble.
(Note: Do not over tighten fittings. They should be just tight enough to prevent leaking.)
• Test by assembling pump tube assembly to pump and immersing end of plastic tube in water. Pull pump shaft out. Push pump shaft in and a stream of water should shoot out of outlet fitting several feet. Try pump several times in this manner to make sure it performs well. If it does not, then replace entire pump (pump piston and cups are not replaceable).
3
Figure 6
Unit Heats Up But Does Not Steam— Generator Problem
(See Figure 6)
• If, after checking all preceding items, nothing wrong is found,
then disconnect the riser tube at the generator fitting and operate the pump. A stream of water should shoot out of riser tube about ten to fifteen feet.
• If it does not, then remove riser tube and check for blockage.
If riser tube is open, then recheck items on preceding pages. Water must shoot out of riser tube before proceeding.
• If water shoots out of riser tube, but unit does not steam,
then check for blockage of steam holes at generator clean out. Remove cover and gasket (replace old gasket with a new gasket before reassembling). Center hole usually clogs first because it is smaller.
(See Figure 7.)
6. Center hole cleaning.
Clean center hole with 7/64diameter drill and two side holes with a
3
/16diameter drill.
(See Figure 7.)
• If unit still does not steam, then generator is probably "limed"
and must be disassembled and cleaned.
(See Figure 8).
• To clean generator, first remove generator and discharge plate from unit. Separate generator from discharge plate and clean "lime" from generator cavity, holes, and distribution grooves.
(See Figure 8).
7. Steam hole cleaning.
Clean twelve steam holes in discharge plate. Remove loose "lime" from discharge plate.
8. Discharge plate care.
Do not scrape away all "lime" from center of discharge plate. A thin coat of "lime" promotes steaming. Polishing discharge plate may reduce steaming.
Figure 7
• To reseal generator, first place discharge plate on steamer so that
the twelve steam holes line up with the twelve round holes in steam chamber. From inside of steam chamber, insert two carriage bolts in opposite corners and through discharge plate. Tape the bolts in place from inside steam chamber.
Figure 8
Figure 9
9. Reassemble generator.
(See Figure 9).
Apply a
1
/16" to 1/8" diameter bead of RTV silicone sealant around cavity in generator as shown. Use your finger to smooth out the silicone, otherwise the generator will not seal properly. Dow Corning 732 or GE 159 silicones are acceptable. The silicone must be good to 450°F. Do not apply too much silicone because it may block steam holes. Then put generator on steamer and reassemble. Tighten generator nuts to fifty to sixty in/lbs. Allow RTV to cure for about twenty-four hours before using steamer. (Generator Gasket (5602-00) can be used instead of resealing with RTV sealant. It requires no additional silicone and allows immediate use of steamer since no cure time is needed).
• Check overheat indicator label on clean out cover to see if unit has overheated. If triangle on Celsidot 450°F label has turned black,
unit has reached at least 450°F. Thermostat should be replaced.
4
Unit Steams But Unit Is Wet or Soggy
1. Check for excessive steam.
Excessive pumping may flood the generator and cause water to "blow through" onto food. Steamer is designed to be pumped at twenty second intervals. It is acceptable to operate pump once, then wait a couple of seconds and operate again. More frequent pumping than this may result in "wet" food.
2. Check food pan for water.
Operate pump once, without any food in food pan, then open food drawer to look for water puddles. If you see one or two puddles of water in the food pan and can see water run out of the steam hole in the steam chamber then the generator is probably defective. Refer to pages 3 and 4 to reseal generator.
Unit Steams But Very Slowly
1. Check water delivery system.
First check for a problem in the water delivery system. Review pages 2 and 3. If no water system delivery problems are found, then the generator may be partially clogged. Pages 3 and 4 discuss steps to check and reseal generator.
Internal Wiring of EmberGlo Model AR60
All wiring is 16GA nickel plated copper with silicone insulation and glass braid 200°C.
(See Figure 10 for wire locations.)
Figure 10
Model AR60 Exploded View
5
120V 12.5A 1500W
AR60 Replacement Parts List
PART NUMBER DESCRIPTION
1 1694-00 Caution Label 2 2618-00 Cord Set 3 5686-00 Water Pan Baffle (2-Required) 4 2625-30 Pump Spring 5 5601-40 Generator Insulation 6 5602-20 Clean Out Cover Gasket 7 5601-90 Clean Out Cover 8 5604-35 Dip Tube Spring Assembly 9 5604-83 Spacer 10 5682-00 Slide Channel Rivetment 11 5682-50 Food Pan Grid 12 5688-00 Water Pan Weldment 13 5676-50 Cabinet Top 14 5615-02 Pump Handle 15 5616-90 Strain Relief 16 5622-00 Steam Range Nameplate 17 5683-50 Food Pan 4" Deep 18 2608-10 Discharge Plate 19 5655-00 120V Generator 20 5685-00 Steam Chamber Weldment 21 5691-00 Steam Chamber Bottom Rivetment 22 5686-50 Food Drawer Rivetment 23 5687-00 Door Liner/Gusset Weldment 24 5617-90 Crank 25 5680-50 Rear Leg 26 5660-00 Pump/Check Valves 27 5617-20 Pump Chassis 28 5677-00 Cabinet Back 29 5678-50 Upper Switch Panel 30 5678-00 Food Door 31 5660-80 Left Cabinet Side 32 5660-81 Right Cabinet Side 33 5693-00 Riser Tube 34 5693-10 Dip Tube Assembly 35 5661-30 Bulb Clamp 36 5661-40 Heyco Mount 37 5661-50 Upper Switch Panel Spacer 38 5661-70 Left Water Pan Support 39 5661-71 Right Water Pan Support 40 5661-80 Rear Foot 41 5661-90 Steam Deflector 42 2636-10 Pump Rod End 43 5663-10 Slide Channel Stop 44 5663-90 Food Drawer Nut Plate (2-Required) 45 8423-14 Toggle Switch 46 8452-08 Thermostat 47 8445-00 Ball Knob 48 8445-01 Water Pan Knob 49 8445-04 Black Vinyl Grip Handle 50 8450-11
3
/32x 5/8Woodruff Key
51 8450-19
3
/8Nyliner
PART NUMBER DESCRIPTION
52 8450-25 Socket Tip (4-Required) 53 8451-36 10-24 x 1
1
/2Stainless Steel Carriage Bolt
(16-Required) 54 8451-44 Strainer 55 5617-80 Foot/Bolt 56 5655-20 Crank Stop Post 57 8480-17 74B Wire Nut (2-Required) 58 8483-00
1
/8M x 1/4T Compression El
59 8496-11
1
/8Brass Pipe Plug
60 6-32 x
1
/8Slotted Round Head Zinc Plated
(2-Required) 61 6-32 x 1 Slotted Oval Head Nickel Plated (2-Required) 62 6-32 Hex Nut Zinc Plated (2-Required) 63 No. 6 Split Lockwasher Stainless Steel (2-Required) 64 No. 8 x
3
/8Phillips Round Washer Head
65 10-24 x
3
/8Slotted Round Head Stainless Steel
(13-Required) 66 10-32 x
1
/4Slotted Pan Head Stainless Steel
(2-Required) 67 10-24 Hex Nut Zinc Plated (23-Required) 68 No. 10 Flat Washer Zinc Plated (16-Required) 69 10-24 x
7
/8Slotted Round Head Stainless Steal
(2-Required) 70 No. 10 Split Lockwasher Stainless Steel (16-Required) 71 10-24 x
1
/4Slotted Pan Head Stainless Steel
72 10-32 x 3/8 Phillips Truss Head Stainless Steel
(4-Required) 73 2626-00 Check Valve Pin 74 Pump End Clip 75
1
/8x 1 Cotter Pin Zinc Plated
76
1
/2-20 Pal Nut 1220 Zinc Plated
77
5
/16-24 Hex Jam Nut
78 Pump Shoulder Bolt
The Following Kits Are Available
2608-80 (16) 8451-36 Stainless Steel Carriage Bolts
with nuts and washers 5602-00 Generator Gasket 5604-35 (1) 5604-30 Dip Tube Spring Assembly with nut 5615-10 (1) 5615-02 Pump Handle with 8450-19 Nyliner,
8450-11 Woodruff Key and
1
/8x 1 cotter pin
5627-20 (1) 5601-90 Clean Out Cover, (2) 5602-20 Clean Out
Cover Gasket with (2) 10-24 x
3
/8slotted round head
screws, (2) No. 10 split lockwashers and Celsidot label 5652-70 (1) 8543-13 Wire Assembly Black, (1) 8543-14 Wire
Assembly Black, (1) 8551-17 Wire Set White, (1) 8551-18 Wire Set Black, (1) 8551-20 Wire Set White
Loading...