Kospel ECKO.TM, Service Manual

13

4.2 

Failure modes of PSK.P4 control panel.

Tab.3 Failures

"Faults” display view shows possible failures: flow failure, outdoor/room temperature sensor failure, inlet outlet boiler sensor 

failure. The controller enables failure detection and identification (short circuit or sensor disconnection/ missing).

Symptoms

Reason

Operation

Display doesn't work.

Power supply failure. 

Check the mains and the main fuses.

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Replace the control panel.

Display shows flow failure

The flow value is „0” or is to low.

(below value of 12 l/min)

Heating is blocked.

Air lock in the heating system, solve the problem.

Deaerate the pump and the heating system.

Circulating pump is blocked.

Circulating pump is blocked. Make a manual pump

run. Use the screw to rotate the rotor.

 Replace pump.

Flow sensor failure.

Replace flow sensor.

The supply temperature is too low.

Heating box failure.

Check or replace heating box.

"Faults” display view shows possible failures: 

flow failure, outdoor/room temperature 

sensor failure, inlet /outlet

boiler sensor failure. The controller enables 

failure detection and identification

(short circuit or sensor disconnection/ 

missing).

Sensor failure

a) „Tzew-brak” or „ Tpok-brak” 

The sensor is not reporting.

Check connection between controller and sensor.

Replace temperature sensor

b) „Tzew zwarcie” or  „Tpok zwarcie” 

Short circuit on the connection between 

controller and sensor..

Check connection between controller and sensor.

The sensor is inversely connected.

Check the polarity of the sensor.

Failure of return or supply temperature 

sensor. 

Sensors failure.

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damaged, replace the sensor. If the sensors are OK, 

replace the control panel

PSK.M2.