61
Fault elimination
8.4.2 Error list
If a malfunction occurs with the status "Fault", further operation is no longer possible and the Condair
RH is stopped. After eliminating the fault, the Condair RH must be restarted.
Code
Error
Description
LED unit
Indication
App
Possible causes
Remedy
E1
lights red
E1
Overcurrent detected.
The measured heating current is greater than 130% of the permissible maximum current over a
certain period of time. The Condair RH is stopped.
Humidity demand dropped too quickly
Automatic adjustment of the working point.
Drain valve defective.
Check/replace drain valve.
Drain obstructed in the steam cylinder.
Replace steam cylinder.
Used cylinder not recognized.
Replace steam cylinder.
Steam cylinder fills too fast.
Check/replace inlet valve.
E2
lights red
E2
Problem with inlet or drain.
The required water level in the cylinder is not reached. The Condair RH is stopped.
Water supply interrupted (shut-off valve
closed) or obstructed.
Check water supply (open shut-off valve,
check water pressure).
Strainer in the inlet valve clogged or inlet
valve defective.
Check/clean the strainer in the inlet valve or
replace the valve.
Drain valve leaking or defective.
Check/clean or replace the drain valve.
E3
lights red
E3
No heating current detected.
No heating current was measured for 20 minutes, although there is a humidity demand present.
The Condair RH is stopped.
Electrical connection between the electrodes
and the holding plate is poor or the steam cyl-
inder is defective.
Check electrical connection. Remove and re-
install cylinder. Replace cylinder if necessary.
Fuses on the driver board defective.
Check/replace fuses on the driver board.
Heating cable harness defective.
Check/replace heating cable harness.
Water supply interrupted (shut-off valve
closed) or obstructed.
Check water supply (open shut-off valve,
check water pressure).
Strainer in the inlet valve clogged or inlet
valve defective.
Check/clean the strainer in the inlet valve or
replace the valve.
Loss of water in the water system (via fill cup
overflow) due to excessive back pressure in
the steam line.
Check steam installation: steam line not too long,
not kinked, no condensate pocket.
E4
lights red
E4
Unexpected heating current detected:
The control measures a heating current although there is no humidity demand. The Condair RH
is stopped.
Fuse of the heating circuit on the driver board
is defective
Check/replace fuse.
Driver board defective.
Replace driver board.
E5
lights red
lights red
E5
End of life of the steam cylinder reached. The steam cylinder must be replaced. The Condair
RH is stopped.
Summary of Contents for RH 1.8
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