TROUBLESHOOTING GUIDE
IMPINGER ADVANTAGE GAS OVENS SERIAL NUMBER N28654 AND ABOVE (OVENS WITH PUSH BUTTON CONTROLS)
SYMPTOM | POSSIBLE CAUSE | EVALUATION |
Oven fan will not run | Incoming power supply | Check circuit breaker, reset if required. Check power |
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| plug to be sure it is firmly in receptacle. Measure |
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| incoming power, call power co. if required. |
| Fuse, 10 Amp | Check, replace if necessary. |
| Fuse holder | Check, replace if necessary. |
| Switch, oven power | Check for line voltage supplied to switch. If no voltage is |
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| present, trace wiring back to fuse holder. Check |
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| continuity between switch terminals. Replace switch as |
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| needed. |
| Motor, main fan | Check for line voltage supplied to motor. If no voltage is |
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| present, trace wiring back to oven power switch. Check |
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| motor for opens, shorts or grounds. |
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| WITH POWER OFF: Turn fan blade to check for locked |
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| rotor. |
No control box cooling | Incoming power supply | Check circuit breaker, reset if required. Check power |
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| plug to be sure it is firmly in receptacle. Measure |
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| incoming power, call power co. if required. |
| Fuse, 10 Amp | Check, replace if necessary. |
| Fuse holder | Check, replace if necessary. |
| Switch, oven power | Check for line voltage supplied to switch. If no voltage |
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| is present, trace wiring back to fuse holder. Check |
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| continuity between switch terminals. Replace switch as |
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| needed. |
| Cooling fan | Check for supply voltage to the cooling fan. If no |
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| voltage is present, trace wiring back to the fuse holder. |
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| If voltage is present and motor does not run, check |
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| motor for opens shorts or grounds. |
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| WITH POWER OFF: Check for locked rotor. |
No automatic control | Incoming power supply | Check circuit breaker, reset if required. Check power |
box cooling |
| plug to be sure it is firmly in receptacle. Measure |
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| incoming power, call power co. if required. |
| Cooling fan thermostat | Check cooling fan thermostat (thermostat closes at |
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| 120°F and opens at 100°F). With cooling fan thermostat |
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| |
Control box cooling fan | Cooling fan thermostat | See “Cooling fan thermostat” (NOTE: Thermostat will |
continues to run |
| remain closed if control box temperature remains above |
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| 120°F. |
Oven will not heat | Main fan | If not operating, refer to “Oven fan will not run” |
S/N N31348 and | Gas supply | Check for adequate gas supply and be sure that the |
Below |
| manual gas shut off valve is open. Also check flexible |
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| gas line connection. |
| Air pressure switch | Check air switch terminals for supply voltage to |
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| terminals NO2 and COM. If voltage is present on one |
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| side only, check for air tube blockage or misalignment. If |
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| these are okay, adjust air pressure switch or replace |
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| switch as needed. |
| Oven cavity | Terminals are normally closed, opens at 350°C (660°F). |
| thermostat | If open, reset and test oven for proper operation. If |
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| thermostat will not hold for maximum temperature, and |
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| oven is not exceeding control setting, check for proper |
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| location of the capillary bulb in its spring holder. If above |
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| checks are okay, replace |
| Gas pressure switch | This switch is located inside the gas valve and should |
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| close when gas pressure is present. |
6 | Impinger I – Adv Digital – Gas Service Manual – International |