I.C.E. HTDM Food Process Unit User Manual
lost communication with the
modulating gas valve.
Check that valve is powered
and operating correctly.
Check for signal (0-10VDC) on
terminal J11. The unit will
not fire until valve has
proven closed (<=2.0 VDC
signal on terminal J11)
Check ICECON2 fuses
NO DISPLAY ON
Board requires 24VAC on terminal J2
for operation. Check fuses on both
the control panel and Circuit board
and replace as necessary.
Verify correct wiring, wiring
connections and grounding of the
BOARD WILL NOT
ENTER HEAT MODE
ICECON2 requires 24VAC on terminal J12
to enter heat mode.
Board requires a 2.0 VDC signal on
terminal J11 before initiating trial
Flame has not proven. ICECON2
requires a 24VAC signal on terminal
J22 before entering heat mode. The
controller will use 4 trials for
ignition before indicating “flame
UNIT WILL NOT
Check for free rotation of the
Check for correct feedback signal
SUPPLY FAN DOES
Check for power on terminal J5 on the
ICECON2 controller. If power is trace
unit wiring as per diagram to
Check for power on terminal J6. If
power is not present trace wiring as
per diagram to determine fault.
If power is present on J6 but not J5
the system is not calling for the