10 Troubleshooting
If a malfunction occurs, a message will appear on the display of the controller.
The display is permanently off.
Press button ➄. Display illuminated?
no
yes
Controller has been in standby,
everything o.k.
Check the supply line and recon-
nect it.
The fuse of the controller could
be blown. The fuse holder (which
holds the spare fuse) becomes ac-
cessible when the cover is removed.
The fuse can then be replaced.
Check the power supply of the controller. Is it disconnected?
no
yes
Disconnected temperature sensors can be checked with an ohmmeter. Please
check if the resistance values correspond with the table.
Directional pad ashes red. The symbol ☍ is indicated on the display and the
symbol ⚠ ashes.
Sensor fault. An error code instead of a temperature is shown on the corre-
sponding sensor display channel.
- 88.8888.8
Cable is broken.
Check the cable.
Short circuit.
Check the cable.
°C °F Ω °C °F Ω
-10 14 961 55 131 1213
-5 23 980 60 140 1232
0 32 1000 65 149 1252
5 41 1019 70 158 1271
10 50 1039 75 167 1290
15 59 1058 80 176 1309
20 68 1078 85 185 1328
25 77 1097 90 194 1347
30 86 1117 95 203 1366
35 95 1136 100 212 1385
40 104 1155 105 221 1404
45 113 1175 110 230 1423
50 122 1194 115 239 1442
Resistance values of Pt1000 sensors
Note:
For answers to frequently asked questions (FAQ) see www.resol.com.
Fuse
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