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2118, 2118IM, 2118IMD Series
Temperature Monitor Control (TMC) - Red Light Flashing
Make sure input voltage
to TMC +12V terminal is
between 10.5 –15.4 VDC.
Once input voltage is
above 10.0 VDC, High
Temperature Monitor will
self-recover and oP LI
fault code will be cleared.
FAST
On/Off 2 to 3 times per
second
The TMC has sensed the input
voltage to be below 9.5 VDC
The TMC has sensed an open
circuit in the thermocouple circuit
SLOW
On/Off once per second
Is thermocouple
plugged into T/C
connector of TMC?
Replace thermocouple
Is red light
ashing FAST or
SLOW?
FAST SLOW
A
From Previous Page
Yes
No
Plug in thermocouple.
Once plugged in, TMC
will self-recover and
oP LI fault code will be
cleared.
Fault Codes, cont’d.
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