Basic Settings and Service Procedures
HDS Middle Range / HDS Premium Range
Page 72 / 127
Service Manual 04.2008
3.1.9 Fault memory
Function
70 °C
LED display
Meaning
ERRORS
This function is used to
read out the fault
memory.
The faults are displayed
in 2 steps:
1. LED display of the fault
type (see right-hand
side).
2. Display of the pump
running time in hours
which have passed
since the fault
occurred via the
numerical values of
the LEDs (see
Chapter 3.1.3).
Example:
Overvoltage detected in Trans-
former 1.
Fault types
Undervoltage detected in Trans-
former 1.
Overcurrent detected.
Current asymmetry detected.
Motor thermal contact is open.
Pump dry running detected.
„Sticking“ low-water protection
detected (closed although pump
is off).
„Oil refill container empty“
detected.
Leakage (10 short start-ups each
< 2 seconds).
Exhaust thermostat is open.
- P A U S E -
Explanation:
The pump has been in
operation for 14 hours
since the „Motor thermal
contact open“ fault
occurred.
Note:
Actuate the Inching
function to switch to the
next fault.
Continued on the next page ...