SER VICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROU BLES HOOTI NG GU ID E - ELECTRONIC

CONT ROL

 

 

 

 

 

 

 

 

 

 

 

Error

 

 

 

Possib le Cause

 

 

 

 

Code

Descr ipti on/Result s

Service Required

 

 

 

 

 

 

 

 

 

 

 

E-10

Air Sensor

Fault

(sho rted)

Air sens or is sho rted or defec tive , or there is a conne ctio n failu re.

 

 

 

 

 

 

Detach the sensor from the termi nal block.

Use an Ohm meter to meas ure

 

 

 

 

 

 

the resistance of the sen sor. Check sens or at 32°F (0°C ) using a conta iner

 

 

 

 

 

 

of ice water . If Ohm reading is 100, replac e displa y. If Ohm readi ng is

 

 

 

 

 

 

not 100, repla ce senso r.

 

 

 

 

E-11

Air Sensor

Fault

(open)

Air sens or is ope n or def ecti ve, or there is a connect ion fail ure.

 

 

 

 

 

 

Detach the sensor from the termina l block.

Use an Ohm meter to measur e

 

 

 

 

 

 

the resi stance of the sensor . Chec k sensor at 32°F (0°C) using a contai ner

 

 

 

 

 

 

of ice water. If Ohm reading is 100, replac e displa y. If Ohm read ing is not

 

 

 

 

 

 

100, repl ace sensor .

 

 

 

 

E-30

Under tem per atu re

The unit has been below its set tem perat ure for 90 minutes . Check the

 

 

 

 

 

 

foll owing: Oven doo r may be open or door gas ket may nee d repla cem ent.

 

 

 

 

 

 

Verify that the oven has been prehea ted and is not ove rloa ded or conta ins

 

 

 

 

 

 

frozen prod ucts. Air senso r, prob e, or rela y may be defe ctiv e, ther e may be a

 

 

 

 

 

 

bad wire connecti on, an open hea ting cable, or the high limi t switch may be

 

 

 

 

 

 

tripped. Conta ct servi ce if probl em persi sts.

 

 

 

E-31

Over temper ature

This error wil l displa y if the unit reaches a tem pera ture of 25 degrees above

 

 

 

 

 

 

its maximum allowa ble set point.

If the unit reache s 50 degr ees above its

 

 

 

 

 

 

maximum allowable set poi nt the contro l will turn off. Chec k the followi ng:

 

 

 

 

 

 

Shor ted cable , defec tive sol id stat e relay, or defec tive air sensor . If none of

 

 

 

 

 

 

the above, conta ct serv ice.

 

 

 

 

E-80

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

 

 

 

 

 

 

problem per sist s

 

 

 

 

E-82

Inte rna l control

calibration err or

Cont act Service .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROU BLES HOOTI NG

GU ID E - MANUAL CONTROL

 

 

 

 

TROU BLE

 

POSS IBLE CAUSE

REMEDY

 

 

 

 

Unit does not operat e.

 

Insuffi cient powe r supply

Check power source.

 

 

Defecti ve power cord or plu g

Check and replace if necessary .

 

 

Defecti ve power switch.

Check and replace if necessary .

 

 

Defecti ve ther mostat.

Replace thermostat and calibrate.

 

 

 

 

Cannot control temp eratu re.

 

Defecti ve thermo sta t.

Replace thermostat and calibrate.

 

 

Grounded element.

Replace element (check element to

 

 

 

ground Ohm element @ 27.7 Ohms) .

 

 

 

 

Tempera ture gauge read out incorrect.

 

Defecti ve temperature gauge

Replace temperature gauge.

 

 

Calibration off.

Calibrate according to instructi ons

 

 

 

found on page 9.

 

 

 

 

AR- 7H Hot Hol din g Rot is ser ie Co mpani on Operation & Care Manual • 15

Page 17
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Alto-Shaam AR-7H manual SER Vice, Trou Bles Hooti NG GU ID E Electronic ROL, Trou Bles Hooti NG GU ID E Manual Control