Over Temperature Cooking Chamber - Henny Penny SmartCombi ESC 615 Troubleshooting Manual

SmartCombi™ Service
Consequence:
The unit is not ready for operating until the unit has cooled down.
Error description:
A temperature of >310°C (590°F) electric units or > 270°C (518°F) gas units were measured in the
chamber by the Core temp. probe, chamber probe or the humidity probe.
Troubleshooting:
Open the left side wall. Maybe the solid state
relay switches the power permanently (short-
circuit). Switch the unit on (standby) and check
current consumption / voltage at the load side of
the SSR. Is there a current flow / would voltage
put through and the green LED on the SSR´s are
off?
Switch the unit on (standby) and check current
consumption / voltage at the load side of the
SSR. Is there a current flow / would voltage put
through and one of the green LED on the SSR´s
is on?
Check contacts of the probes at the plug X11 and
.
X16 at display pcb A2 (also between plug and
cable). Reset the electronic. Mistakes cleared?
Observe the shown temperatures in the
measurement mask. Maybe one probe has broken.
Is "emergency program" shown on the display?

Over temperature cooking chamber

No
No
No
No
Replace broken solid state relay. Check if the fan
wheel is out of balance.
Yes
There is an error on the keyboard pcb. LED PWM 1
or PWM 2 is permanently on.
(control of the SSR´s). Replace keyboard pcb.
Yes
Enter the diagnosis memory The core temp. probe
has placed into the product during the unit was into
the emergency program.. See also error „CT-
Yes
probe defect".
11