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| SER VICE |
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| TROU BLES HOOTI NG GU ID E - ELECTRONIC | CONT ROL |
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| Error |
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| Possib le Cause |
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| Code | Descr ipti on/Result s | Service Required |
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| Air Sensor | Fault | (sho rted) | Air sens or is sho rted or defec tive , or there is a conne ctio n failu re. |
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| Detach the sensor from the termi nal block. | Use an Ohm meter to meas ure |
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| the resistance of the sen sor. Check sens or at 32°F (0°C ) using a conta iner |
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| of ice water . If Ohm reading is 100, replac e displa y. If Ohm readi ng is |
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| not 100, repla ce senso r. |
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| Air Sensor | Fault | (open) | Air sens or is ope n or def ecti ve, or there is a connect ion fail ure. |
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| Detach the sensor from the termina l block. | Use an Ohm meter to measur e |
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| the resi stance of the sensor . Chec k sensor at 32°F (0°C) using a contai ner |
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| of ice water. If Ohm reading is 100, replac e displa y. If Ohm read ing is not |
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| 100, repl ace sensor . |
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| Under tem per atu re | The unit has been below its set tem perat ure for 90 minutes . Check the |
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| foll owing: Oven doo r may be open or door gas ket may nee d repla cem ent. |
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| Verify that the oven has been prehea ted and is not ove rloa ded or conta ins |
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| frozen prod ucts. Air senso r, prob e, or rela y may be defe ctiv e, ther e may be a |
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| bad wire connecti on, an open hea ting cable, or the high limi t switch may be |
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| tripped. Conta ct servi ce if probl em persi sts. |
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| Over temper ature | This error wil l displa y if the unit reaches a tem pera ture of 25 degrees above |
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| its maximum allowa ble set point. | If the unit reache s 50 degr ees above its |
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| maximum allowable set poi nt the contro l will turn off. Chec k the followi ng: |
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| Shor ted cable , defec tive sol id stat e relay, or defec tive air sensor . If none of |
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| the above, conta ct serv ice. |
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| Fun ction dat a val ues wer e reset. | Ensu re that all tem perat ures and times are properly set. Conta ct servi ce if |
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| problem per sist s |
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| Inte rna l control | calibration err or | Cont act Service . |
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TROU BLES HOOTI NG | GU ID E - MANUAL CONTROL | ||
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TROU BLE |
| POSS IBLE CAUSE | REMEDY |
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Unit does not operat e. |
| Insuffi cient powe r supply | Check power source. |
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| Defecti ve power cord or plu g | Check and replace if necessary . |
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| Defecti ve power switch. | Check and replace if necessary . |
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| Defecti ve ther mostat. | Replace thermostat and calibrate. |
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Cannot control temp eratu re. |
| Defecti ve thermo sta t. | Replace thermostat and calibrate. |
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| Grounded element. | Replace element (check element to |
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| ground Ohm element @ 27.7 Ohms) . |
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Tempera ture gauge read out incorrect. |
| Defecti ve temperature gauge | Replace temperature gauge. |
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| Calibration off. | Calibrate according to instructi ons |
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| found on page 9. |
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AR- 7H Hot Hol din g Rot is ser ie Co mpani on Operation & Care Manual • 15