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Impinger X2 – Analog Service Manual – Dom & Int’l12
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, hi-limit 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 hi-limit thermostat.
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 hi-limit thermostat. If voltage is
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
(burner motor)
Check for supply voltage at the COM terminal on the air
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.