Page 9 of 12 | Isotemp Laboratory and Chromatography Refrigerators |
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Trouble Shooting Table
Part Number: 104416
This table is intended to assist in resolving
Symptom | Probable Cause | Action |
Does Not Run | Unit Unplugged | Plug in Unit |
| Blown fuse or tripped circuit | Check fuse or circuit |
| breaker. | breaker at breaker |
|
| box. |
Runs | Frost buildup on refrigeration | Defrost unit. Increase |
Continuously | coils | Ho time. |
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|
Clicking | The compressor is equipped | Disconnect power and |
Sound | with a thermal protector. This | call for service. |
| device shuts off the |
|
| compressor when it becomes |
|
| to hot. A clicking sound |
|
| occurring about every 30 |
|
| seconds indicates this |
|
| protector is working |
|
Insufficient | Set temp is to high | Reduce temperature |
Cooling |
| setting, verify Cool |
|
| LED is on. |
| Condenser coil dirty | Clean condenser coil |
|
| with a vacuum cleaner |
| Unit frosted | Defrost unit |
Display shows | Open sensor | Check sensor |
E1 (error |
| connection |
code) |
|
|
Display shows | Under Temp | Temperature at sensor |
E2 (error |
| is less than |
code) |
| sensor is |
|
| malfunctioning. |
Display shows | Over Temp | Temperature at sensor |
E3 (error |
| is greater than 37°C or |
code) |
| sensor is |
|
| malfunctioning |
