Manual
Troubleshooting RTCSmp Built-In Temperature Controlled Hold-Line 
Part # 4532286 Rev 3 (6/10/14)    27 
10.2  Problems and Possible Causes 
Problem  Possible Causes  Action To Take By Operator 
Pan does not heat, digital 
display is OFF (dark) 
No power supply. Check the electrical supply, e.g. power cable 
plugged into the wall socket. 
Check primary fuses. 
Control knob is in OFF-position.
T
urn control knob to an ON-position.
Defective induction unit. Ensure knob is in OFF-position and if possible 
and safe, disconnect the unit from the power 
supply. Contact your authorized service agency. 
Pan does not heat. 
If an error code is shown, 
see next section. 
Pan is too small. Use a suitable pan with bottom diameter larger 
than 5” (12cm). 
Pan is not placed in the heating 
zone; pan is not detected by sensor. 
Place the pan in the center of the heating zone.
Unsuitable pan. Select a pan recommended for the induction 
unit. 
Defective induction unit. Ensure knob is in OFF-position and if possible 
and safe, disconnect the unit from the power 
supply. Contact your authorized service agency. 
Poor heating, digital 
display is ON (shining). 
Pan is not suitable. Select a pan recommended for the induction 
unit. Then compare the results. 
Air-cooling system obstructed. Verify that air inlet and outlet are not 
obstructed. Ensure the Intake Air Filter is clean. 
Ambient temperature is too high; 
the cooling system is not able to 
keep the induction unit in normal 
operating conditions. 
Verify that no hot air is sucked in by the fan. 
Reduce the ambient temperature. The intake air 
temperature must be lower than 104°F (40°C). 
Defective induction unit. Ensure knob is in OFF-position and if possible 
and safe, disconnect the unit from the power 
supply. Contact your authorized service agency. 
Unit does not react to 
control knob positions 
Defective control switch. Ensure knob is in OFF-position and if possible 
and safe, disconnect the unit from the power 
supply. Contact your authorized service agency. 
Power/heating level seems 
to be reduced, fan is 
working 
Air-cooling system is blocked. 
Internal fan is dirty. 
Verify that air inlet and outlet are not 
obstructed. Ensure the Intake Air Filter is clean. 
Contact your authorized service agency. 
Power/heating level seems 
to be reduced, fan does 
not work 
Defective fan or fan control. Ensure knob is in OFF-position and if possible 
and safe, disconnect the unit from the power 
supply. Contact your authorized service agency. 
After a longer permanent 
operating time, 
Power/heating level seems 
to be reduced 
Overheated induction coil; cooking 
area is too hot. 
Overheated oil in pan. 
Pan is empty. 
Switch the unit off. Safely remove pan. Wait 
until the heating zone has cooled down before 
turning the unit ON again. 
NOTE:  The fan starts when the ambient temperature in the control area exceeds 140ºF/60ºC. At heat 
temperatures higher than 167ºF/75ºC, the controller automatically reduces the power to keep the unit in normal 
operating conditions. The full power of the device is at heat sink temperature of 158
o
F/70
o
C, running freely again. 










