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Trouble-shooting
Stamoclean CAT430
36
Hauser
9.2
Spare parts
a0007249
Fig. 27:
Control box CAT430 and collecting vessel of CA7X
Frost problems
Housing and filtrate line
heater failure
Problems with the housing and filtrate line heater are evident when the filtrate hoses in the control box are
frozen. A timer failure is also possible.
This is how to check the housing heater:
– 24 V between terminals 3 and 4 on the terminal PCB in the connection box?
No: transfo or cable connection to the transfo defective.
– Remove the connections from terminals 2 and 5 (24 V, safe). Connect the terminals with a piece of wire.
Housing heater switches on and is warm after approx. 1 min? The same with the heater cable in the
filtrate line to the filter elements?
No: Check for 230 V between terminals 7 and 13. If not, the relay switch on the PCB is defective. Repair
required.
Yes: Heating element defective, repair required.
– The checks mentioned above are o.k. and still no housing heating? Micro thermostat defective, repair
required.
Failure in sample line
heater to the measuring
devices
Problems with the sample line heater to the measuring devices are evident when the sample is not
transported on from the control box to the measuring devices and all other causes mentioned above have
been ruled out.
– Check that the entire part of the sample line in danger of frosting over is heated by the electric band
heater. Otherwise, a longer or an additional electric band heater must be used.
– Check that the electric band heater has been connected properly
– Is the thermal element correctly attached to the pipe socket? Otherwise, the electric band heater heats the
thermal element up, which then does not switch properly.
If the electric band heater is externally connected, the thermal element must be in the open.
– All of the checks mentioned above are o.k. and the hose is still frozen? Thermal element defective, replace
electric band heater.
Fault
Possible cause
Tests and / or corrective measures
2
3
4
1
1
2
3
4
5
6
PROG. RESET
6b
8
9
6
7
5
6a