![](/images/new-backgrounds/1093033/9303333x1.webp)
| Oven fan relay | Check for 120VAC to relay coil, if no voltage is |
|
|
| present, trace wiring back to 20 minute time delay. | |
|
| If voltage is present, be sure that relay contacts |
|
|
| stay closes during the 20 minute cool down. |
|
|
| Replace relay as needed. |
|
Main fan runs after | Oven start relay | Contacts should open when main power switch is | |
20 minute cool down |
| turned off. Replace relay as needed. |
|
| 20 Minute time delay | 120VAC at terminal #2 should discontinue approx. | |
|
| 20 minutes after main power is switched off. If the | |
|
| oven start relay contacts are open, and the |
|
|
| voltage continues at terminal #2 of the 20 minute | |
|
| timer, for more than 20 minutes, replace the 20 |
|
|
| minute time delay. |
|
| Oven fan relay | Check to insure that the relay contacts are |
|
|
| opening after the relay coil is |
|
|
| Replace relay as needed. |
|
| 20 Minute time delay | NOTE: On/ off operation of the main power switch | |
|
| will set the timer to 20 minutes. If the timer is |
|
|
| accidentally reset, turn off the main circuit breaker | |
|
| for 15 seconds to cancel. |
|
No control box cooling | Incoming power | Check circuit breakers, reset if required. Check |
|
|
| power plug to be sure it is firmly in receptacle. |
|
|
| Measure incoming power, call power co. if |
|
|
| needed. |
|
| Switch, main power | Check continuity between switch terminals. |
|
|
| Replace switch as needed. |
|
| Cooling fan | Check for supply voltage at cooling fan. If no |
|
|
| voltage is present, trace wiring back to power |
|
|
| switch. If voltage is present, and motor does not |
|
|
| run, check for opens, shorts or grounds. |
|
|
| WITH POWER OFF: Check for locked rotor. |
|
No automatic control box | Incoming power supply | Check circuit breakers, reset if required. Check |
|
cooling |
| power plug to be sure it is firmly in receptacle. |
|
|
| Measure incoming power, call power co. if |
|
|
| needed. |
|
| Cooling fan thermostat | Check the cooling fan thermostat. (Thermostat |
|
|
| closes at 120°F and opens at 100°F). With the |
|
|
| cooling fan thermostat |
|
|
| continuity. If switch is open, replace cooling fan |
|
|
| thermostat. |
|
| Cooling fan | Check for supply voltage at cooling fan. If no |
|
|
| voltage is present, trace wiring back to cooling fan | |
|
| thermostat. If voltage is present, and motor does | |
|
| not run, check for opens, shorts or grounds. |
|
|
| WITH POWER OFF: Check for locked rotor. |
|
Oven will not heat | Main fan motor | Check for main fan operation. If it is not operating, | |
|
| refer to “Oven fan will not run”. |
|
| Air pressure switch | This normally open switch should close when the | |
|
| main fan is activated. Refer to the “Removal and | |
|
| installation” section for proper adjustment. |
|
|
| Replace as needed. |
|
| Control transformer | Check for 120VAC supply to the primary of the |
|
|
| control transformer. If no voltage is present, trace | |
|
| wiring back to the main power switch. If voltage is | |
|
| present, check for 24VAC at the transformer |
|
|
| secondary. If there is primary voltage, but no |
|
|
| secondary voltage, replace the control |
|
|
| transformer. |
|
| Oven control | Check for 24VAC supply to control. If no voltage is | |
|
| present, trace wiring back to control transformer. If | |
Impinger II – Advantage Digital Express Service Manual - Domestic | 17 |