Heidolph Hei-VAP Advantage - Manual (Page 61)

Errors and Troubleshooting
Hei-VAP Value, Hei-VAP Advantage
53
EN
Error / message Cause Remedy
No evacuation Power switch Rotavac vario control or
Rotavac vario tec is not activated.
Vacuum valve is defective.
 Activate the power switch
Fuses defective or blown fuse
 Replace fuses
(see chapter 9.2)
Insufficient vacuum
System leaks
 Check seals, tubing and
connections
 Check stopcocks, grease
if necessary
Vacuum pump is defective
 Observe manufacturer's
instructions of the vacu-
um pump
Unit suddenly switches off
(Hei-VAP Precision and
Hei-VAP Advantage) Timer is programmed
 Check and switch off the
timer, if necessary
(see chapter 7.4.1)
Fuses defective or blown fuse
 Replace fuses
(see chapter 9.2)
Table 8-1: Troubleshooting table
8.2 Additional conditions
Additional conditions Reaction
Vapor sensor is defective
 The actual value curve is displayed “---“ instead of the vapor tem-
perature.
The vapor sensor is not con-
nected

The vapor temperature is not displayed in the actual value display
Heater can only be activated at
>0 °C (observe acetone, dry
ice)
Table 8-2: Additional conditions