ERROR CODES
58 SERVICE MANUAL
Error Code 14a + 14B
The rotational speed of the fan is too slow. (a=lower fan B=upper fan)
Steps Check list Solution
1 Verify that the intake filter is not blocked. Clean if necessary.
2 Go to the test menu and test if the fan
motor is running.
3 Check that the fan wheel is not blocked.
4 Check that the main contactor can be
activated.
(Activate the main contactor in the
fan test menu. Verify that there is
24VAC between A1 and A2 on the main
contactor.)
If 24VAC is measured, but
the main contactor is not
activated, change the main
contactor.
5 Verify that the frequency inverter receives
230VAC on L/R and N/S.
6 Is the red LED in the frequency inverter
flashing?
Find out how often and check the meaning
of the flashes.
Change the frequency
inverter.
(Contact HOUNÖ service)
7 Verify that the rotation sensor measures
5VDC. (Measure 5VDC between the black
and the red cable on the rotation sensor.)
If you can measure 5VDC, but
there is no signal from the
sensor, change the sensor.
8 Verify that the 5VDC diode on the IO board
lights up.
9 Disconnect the J1 plug. If the 5VDC diode
emits light, there is a short circuit in the
wiring.
10 Does the diode does not light up? Change the IO board.
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