2017_E_TYPE-HL.doc Page 39 of 55 24-Oct-2017
Note: Over tightening will crack the electrode porcelain.
Test for ignition by either restarting the oven or pushing the Reset button.
6.2.3 U.V. Flame Scanner
Check that the glass on the U.V. scanner is clean. This is a threaded connection and is
easily removed if dirty. A “Kleenex tissue” is recommended for cleaning.
In addition, check for the following:
• Damage to the burner housing or component parts.
• Build up soot, dirt or rust.
6.2.4 Blower
The blower motor has permanently lubricated bearings and requires no routine oiling
maintenance.
Cleaning of the squirrel cage blower wheels should be done when they show a visible
accumulation of dust or dirt. The motor air vents should also be cleaned at the same time.
Prior to cleaning, power supply to the oven should be turned off. Record the air damper
setting so that it can be reset to the proper position after cleaning.
Using low-pressure compressed air to blow off the accumulated dirt is the simplest
method. Aim the compressed air inside the squirrel cage blower. If the fan is not removed from
the motor, care must be taken to prevent any dirt from being blown into the motor bearings.
6.2.5 Blower Motor
If the motor needs to be replaced, shut off power supply to the oven. Disconnect the
electric wires and remove the motor by unscrewing the two bolts.
Remove the squirrel cage by loosening the setscrew. To install the squirrel cage on the
new motor, push it down 7/8" on the shaft and tighten the setscrew.
After installing the motor, the squirrel cage should be spun with the index finger to
ensure that the cage is not rubbing against the burner housing.
6.2.6 Air Flow Switch
The airflow switch is located on top of the burner. An aluminum tube runs from the
airflow switch to the inside of the damper. Ensure that the aluminum tube is clear of restrictions.
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