IHC-200 shows Fr code at startup

Questions & Answers
1

I have had this controller for many years and it has worked well.

I moved 2 years ago and boxed it up. When I try to use it, I get Fr in the display.

If I unplug it, hold the Set button till I plug it in (then release the Set button) and before it displays the Fr code I press the increase button I get the following:

a) Fr is displayed in PV
b) 210 is displayed in SV
c) work 1 light comes on

After 5 seconds the Fr is displayed.

If I press the decrease button (instead of the increase), I get the following:
a) 21.2 C is displayed in PV
b) 210 is displayed in SV
c) work 2 light comes on

Again after 5 seconds the Fr is displayed.

What does the Fr code mean?
Thanks!

2

Hello,
Maybe it says ER?
If it can’t be cleared, the probe may be faulty.

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3

Yes it is an Er - the lower leg of the E is not lit. I can’t clear it. Thanks for your reply.