Condair RM2 - Malfunction List and Remedies

56 Fault elimination
8.3 Malfunction list
Most operational malfunctions are not caused by faulty equipment but rather by improper installation or
disregarding of planning guidelines. Therefore, a complete fault diagnosis always involves a thorough
examination of the entire system (e.g. hose connections, control system, etc.).
Warning Fault Message Possible causes Remedy
––– E20 Safety loop External safety loop is open.
Note: The Condair RM goes into standby operation. As soon as
the external safety loop is closed again the Condair RM continues
to work normally.
One or more monitoring
device(s) of the external safety
loop has/have triggered.
Check the monitoring device(s)
of the external safety loop.
External safety loop not con-
nected correctly.
Let have the wiring of the external
safety loop be checked and cor-
rectly connected by an electrician.
––– E21
Max.level Water level in the steam tank of the Condair RM too high.
Note: The operation of the Condair RM is stopped. After the fault
has been eliminated, the Condair RM must be switched off and on
again.
Level unit calcied. Clean level unit.
Hose connections between level
unit and steam tank blocked.
Check/clean hose connections
between level unit and steam
tank blocked.
––– E22
Max.llingtime Maximum lling time exceeded.
Note: The operation of the Condair RM is stopped. After the fault has
been eliminated, the Condair RM must be switched off and on again.
Water supply blocked, shut-off
valve in the water supply line
closed. Water pressure too low.
Check water feed (lter, pipes,
etc.), check/open shut-off valve,
Check water pressure.
Inlet valve blocked or defective. Check strainer inside the inlet
valve, clean if necessary. Replace
valve.
Excessive back pressure in the
steam line (pressure in the air
duct too high, steam line too long
or kinked), causing water loss via
lling cup.
Check pressure in the air duct,
inspect steam installation.
Water system leaky. Check/seal water system.
W29 ––– Service required The maintenance counter for the unit maintenance of the Condair
RM has elapsed.
Note: The Condair RM continues to work normally.
The maintenance counter
for the unit maintenance has
elapsed.
Carry out unit maintenance in
accordance with the operating
instructions of the Condair RM.
Then, reset the maintenance
counter.