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Duke Manufacturing Co.
2305 N. Broadway • St. Louis, MO 63102
800.735.3853 • 3.231.1130 • 314.231.5074 Fax
www.dukemfg.com
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TROUBLESHOOTING
Problem
Yes
No
1. Oven does not heat with oven
switch in the ON position and
Oven Temperature not set at
0°.
a.Are oven indicator lights on?
b.Does Oven Fan work?
c.Is Oven Door Securely
closed?
d.Is Supply Circuit Breaker
tripped?
e.Is Oven Breaker Switch
tripped?
f. Does oven work?
2. Proofer does not heat with
Proofer Switch in the ON po-
sition Proofer
a.Are Proofer indicator lights on?
b.Does Proofer Fan work?
c.Does Oven work?
d.Is Supply Circuit Breaker
tripped?
e.Is Proofer Breaker Switch
tripped?
f. Does oven work?
Observe Oven Fan. Go to “b”.
Call Duke Service.
Call Duke Service.
Reset Circuit Breaker. Try oven
again. Go to “f”.
Reset Oven Breaker Switch. Go to
“f”.
Troubleshooting complete.
Reset Hi-limit Switch
Check Proofer Operation. Go to “d”.
Close Door securely. Go to “f”.
Check Fuses on Control Box. Go
to “f”.
Call Duke Service.
Call Duke Service.
Observe Proofer Fan. Go to “b”.
Call Duke Service.
Call Service Technician.
Reset Circuit Breaker. Try Proofer
again. Go to “f”.
Reset Proofer Breaker Switch. go
to “f”.
Troubleshooting complete.
Check Oven Operation. Go to “c”.
Check Oven Operation. go to “c”.
Check Supply Circuit Breaker. Go
to “d”.
Check Fuses on Control Panel. Go
to “e”.
Call Dukes Service.
Call Dukes Service.