Oven will not heat | Gas supply | Check for adequate gas supply to oven. |
| Manual gas shut off valve | Check to see that the manual gas shut off valve is |
|
| open. Also, check flexible gas line connection for any |
|
| damage. |
| Main fan motor | Check for main fan operation. If it is not operating, refer |
|
| to “Oven fan will not run”. |
| Relay, main fan | Check for supply voltage to relay terminal #13. If |
|
| voltage is not present, trace wiring back to power |
|
| supply. If voltage is present, check for supply voltage at |
|
| terminal #14. If there is no voltage at terminal #14, and |
|
| the relay is energized, replace the main fan relay. |
| Fuse, 2 Amp, control (F8) | Check, replace if necessary. |
|
|
|
| Fuse holder | Check, replace if necessary. |
|
|
|
| Switch, oven fan | Check for supply voltage to the switch, if no voltage is |
|
| present, trace wiring back to the main fan relay. Check |
|
| continuity between switch terminals. Replace switch as |
|
| needed. |
| Switch, burner | Check for supply voltage to the switch, if no voltage is |
|
| present, trace wiring back to the oven fan switch. |
|
| Check continuity between switch terminals. Replace |
|
| switch as needed. |
| Air pressure switch | Check for supply voltage to the air pressure switch. If |
|
| no voltage is present, trace wiring back to burner |
|
| switch. This normally open switch should close when |
|
| the main fan is activated. Check air switch tube for |
|
| blockage or any obstructions, repair as needed. Refer |
|
| to the “Removal and installation” section for proper |
|
| adjustment of air pressure switch. Replace air pressure |
|
| switch as needed. |
| Thermostat, | Terminals are normally closed. If open, reset and test |
|
| oven for proper operation. If thermostat will not hold for |
|
| maximum oven temperature, and oven is not exceeding |
|
| temperature control setting, check for proper location of |
|
| capillary tube in the oven cavity. If above checks okay, |
|
| replace |
| Burner control | Check for supply voltage to the burner control at |
|
| terminals #1 and #3. If no voltage is present, trace |
|
| wiring back to the |
|
| present, check for supply voltage at pins #8 and #3 |
|
| (burner blower motor). If voltage is not present, replace |
|
| burner control. If voltage is present, proceed. |
| Motor, burner blower | Check for supply voltage to the burner blower motor. If |
|
| no voltage is present, trace wiring back to the burner |
|
| control. If voltage is present, and the motor is not |
|
| turning, check for opens, shorts or grounds. |
|
| WITH POWER OFF: Check for locked rotor. |
|
| Replace burner blower motor as needed. |
| Air pressure switch | Check for supply voltage at the COM terminal on the air |
| (burner motor) | pressure switch. If no voltage is present, trace wiring |
|
| back to burner control. If voltage is present, check for |
|
| supply voltage switching to the NO terminal on the air |
|
| pressure switch. If the burner blower motor is running, |
|
| but voltage is not switching to the NO terminal of the air |
|
| pressure switch, check air switch tube for blockage or |
|
| any obstructions, repair as needed. Refer to the |
|
| “Removal and installation” section for proper |
|
| adjustment of air pressure switch. Replace air pressure |
|
| switch as needed. |
12 |
| Impinger X2 – Analog Service Manual – Dom & Int’l |