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12 

TROUBLESHOOTING

 

TEMPERATURE 

Temperature too high.  

 

 

1/ Controller set too high-see section 6.3 
2/ Controller failed on 

– call Customer Service. 

3/ Wiring error 

– call Customer Service. 

Display reads "HI" or "400"+. 

 

 

Call Customer Service 

Chamber temp spikes over set point and 
then settles to set point. 

 

 

Recalibrate 

– see section 6.4. 

Temperature too low  

 

 

1/ High limit set too low 

– see section 6.5.  

2/ Controller set too low 

– see section 6.3. 

3/ Unit not recovered from door opening 

– wait for display to stop 

changing. 
4/ Unit not recovered from power failure or being turned off 

– ovens will 

need several hours to warm up and stabilize. 
5/ Element failure 

– compare current draw to data plate. 

6/ Controller failure 

– call Customer Service. 

7/ High limit failure 

– confirm with front panel lights that Safety 

Thermostat is operating correctly. 

Display reads "LO"  

 

 

1/ Bad probe or disconnected 

– call Customer Service. 

2/ If ambient temperature is lower than range of unit 

– compare set 

points and ambient temperature to rated specifications in section 9.0. 
 

Unit will not heat over a temperature that 
is below set point 

 

 

1/ On F suffix models confirm that fan is moving and that amperage and 
voltage match data plate 

– check for air movement in chamber.  

2/ Confirm that set point is set high enough 

–turn Safety Thermostat all 

the way clockwise and see if OTP light comes on.  
3/ Check connections to sensor.  
4/ Check calibration 

– using independent thermometer, follow 

instructions in section 6.4.  

Unit will not heat up at all 

 

 

1/ Check amperage 

– amperage should be virtually at maximum rated 

(data plate) amperage.  
2/ do all controller functions work?  
3/ Is the Safety Thermostat set high enough? 

– for diagnostics, should 

be fully clockwise with the OTP light never on. 
4/ Has the fuse/circuit breaker blown? 
5/ Has timer turned unit off? 

Indicated chamber temperature unstable 

 

Section 

Содержание SGO3

Страница 1: ...SLY DESIGNATED CE3G CE3G 2 Revised 6 2015 4861567 INSTALLATION AND OPERATION MANUAL Sheldon Manufacturing Inc P O Box 627 Cornelius Oregon 97113 EMAIL tech Shellab com INTERNET http www Shellab com Sh...

Страница 2: ...ON 6 0 OPERATION SECTION 7 0 MAINTENANCE SECTION 8 0 TROUBLESHOOTING SECTION 9 0 PARTS LIST UNIT SPECIFICATIONS SCHEMATICS These units are are gravity convection ovens for professional industrial or e...

Страница 3: ...both interior and exterior If any the carrier will arrange for official inspection to substantiate your claim 1 3 Accessories Verify that your accessory package is complete All units should have a set...

Страница 4: ...rature Rep re temp rature Indicates Overtemperature Protection Signale un d passement de temp rature Indicates AC Power Rep re secteur AC Indicates Timer Rep re minuteur Indicates Protective Earthgrou...

Страница 5: ...ndles and knobs are not adequate lifting or stabilization The unit should be completely restrained from tipping during lifting or transport All moving parts such as shelves and trays should be removed...

Страница 6: ...d dealt with according to local regulations Your dealer can provide you with a power exhaust which greatly helps under these applications 4 3 Do not operate near noxious fumes 4 4 Do not place sealed...

Страница 7: ...set point This allows continued operation of the oven until the problem can be corrected or service can be arranged It is not recommended that the unit be operated for extended periods of time using...

Страница 8: ...8 5 7 Temperature Activated Light This pilot lamp will be lit whenever the elements are receiving power...

Страница 9: ...low again for the temperature to stabilize until five 5 consecutive readings at one minute intervals show no temperature change Compare the reading on the reference thermometer with the digital displa...

Страница 10: ...yond digit 4 and be located at the extreme bottom right of the display With the display in this mode pushing the UP or DOWN arrow pad will increase or decrease the one minute function allowing the val...

Страница 11: ...l corners using a suitable disinfectant Shelves and shelf clips are autoclaveable DO NOT USE spray disinfectants that might leak through openings and cracks and get on electrical components or that ma...

Страница 12: ...Display reads LO 1 Bad probe or disconnected call Customer Service 2 If ambient temperature is lower than range of unit compare set points and ambient temperature to rated specifications in section 9...

Страница 13: ...n around terminals or signs of arcing or other visible deterioration Will not maintain set point 1 Assure that set point is at least 5 degrees over ambient 2 See if ambient is fluctuating check for ad...

Страница 14: ...ther loads are on the wall circuit Unit will not turn on 1 Check wall power source 2 Check fuse circuit breaker on unit or in wall 3 See if unit is on e g fan or heater and just controller is off 4 Ch...

Страница 15: ...use 10 Amp 250V N A 3300516 Fuse 16 Amp 3300513 N A I O On Off Power Switch 7850570 7850570 Overtemperature Safety Thermostat 1750615 1750648 Pilot Lamp Green 4650554 4650554 Pilot Lamp OTP Red 465055...

Страница 16: ...ht Shipping Net 200 lbs 93 lbs Dimensions Exterior WxDxH in Interior WxDxH in 25 50 x 25 563 x 33 3 16 50 x 19 50 x 16 437 Capacity Cubic Feet 3 0 Temperature Range Uniformity Recovery 10 above amb to...

Страница 17: ...17 WIRING DIAGRAM SGO3 SGO3 2 CE3G CE3G 2...

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