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Troubleshooting
You can eliminate minor faults on your appliance yourself. Please read the information on eliminating faults before
contacting Customer Service. This may avoid unnecessary service visits.
Service information
We're happy to assist you with cleaning and care
instructions, accessories, troubleshooting, scheduling
service visits and more.
Browse our online resources, such as FAQs and How-to
Videos, or call us.
Contacting customer support
Model number (E-Nr.), production number (FD) and Z-
Nr.
Please have the model number (E-Nr.), the production
number (FD) and the consecutive numbering (Z-Nr.) of
your appliance noted.
This information can be found on the appliance rating
plate.
Symptom
Possible cause
Remedy
Intermittent igniter sparking
•
Ceramic igniter is wet or dirty.
•
Carefully dry or clean igniter.
•
Burner ports are clogged.
•
Clean ports on burner cap with a wire, a
needle or straightened paper clip.
More than four clicks of
igniter before lighting
•
Improper fit of burner cap onto
burner base.
•
Align burner cap properly on burner
base.
Constant igniter sparking
•
Range is not properly grounded.
•
Electrical power supply is
incorrectly
polarized.
•
Refer to the Installation Instructions.
Have a qualified electrician ground the
range properly.
Igniters sparking but no
flame ignition.
•
Gas supply valve is in “OFF” position. •
Restore gas supply to the unit.
Range will not operate
(lights, oven, and surface
burners will not come on)
•
No power to the unit.
•
Check for open circuit breaker.
•
Check that power supply line connection
is connected to the proper voltage.
•
Oven is in Sabbath mode.
•
Verify that the oven is not in Sabbath
mode. See the ''Using the oven'' section
of the Use and Care Guide.
Oven operates on bake but
fails to operate on timed
bake
•
Timer improperly set.
•
Set timer as outlined in the Use and Care
Guide.
Oven light fails to come on.
•
Oven light burned out.
•
Replace the oven light as outlined in the
Use and Care Guide.
Door will not open.
•
Oven is still in self-clean mode.
•
If oven is hot, door latch will release
when safe temperature is reached.
Foods in oven are not
cooking evenly.
•
Appliance not level.
•
Refer to the Installation Instructions for
instructions on how to level the
appliance.
Hot air is coming from the
appliance.
•
It is normal for the cooling process to
push heated air out into the room
when the oven is on.
•
During different modes the fan
speed will increase and decrease.
•
This is normal.
USA
Canada
1-800-735-4328
www.thermador.com/us/
support/customer-care
www.thermador.ca/en/
support/customer-care
Summary of Contents for PRD304WHC
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