Specifications

ManualsBrandsPrimus ManualsDryerD11

516307 C PUBLICATION DATE 31 JAN 2008.DOC PROGRAMMING MANUAL 49

FAILURE 25: NO HUMIDITY SENSOR HUMIDITY CONTROL ONLY

Failure 25 occurs when the humidity sensor doesn't give an analog electrical output signal to the dryer

computer. Example: connector not connected to dryer computer.

(At the „t“-menu you can switch off/on the Humidity Control function)

(Note : the humidity sensor needs 1 minute after switching on the power supply dryer to stabilise it’s analog

output signal)

(See 9.2 Monitoring Humidity values)

Failure 25 can occur when the dryer is running without linen inside. This should not be considered as a

system failure. Check correct dryer operation with a normal amount of wet linen.

ATTENTION

THE HUMIDITY CONTROL SYSTEM IS NOT MADE TO RUN WITHOUT LOAD OR WITH A VERY SMALL

LOAD. THE SYSTEM CAN ONLY FUNCTION IN A NORMAL WAY WHEN THERE IS SUFFICIANT

EVAPORATION TO BE MEASURED BY THE AIR HUMIDITY SENSOR

DIAGNOSE:

1. Check if the humidity sensor is connected

to the dryer computer.

If the humidity sensor is not connected to the dryer

computer, connect the sensor

2. Check the wiring. If the wiring is damaged, repair the wiring.

3. Check the supply voltage humidity sensor. If there is no or wrong supply voltage replace the

dryer computer.

4. Check the humidity sensor and amplifier. If the humidity sensor or amplifier is damaged

replace the humidity sensor and amplifier.

5. Check the analog input signal.

(Inputs can be checked one by one in the

Service menu)

If for A3, the value at the Analog input menu = „0“

then the analog input signal is missing.

If the input of the controller board is not functional,

replace the controller board. (check first previous

items)

FAILURE 26: NO HUMIDITY SENSOR CAP HUMIDITY CONTROL ONLY

Failure 26 occurs when the dust cap at the humidity sensor is missing.

When the dust cap is missing, due to the influence of the air flow in the dryer, the sensor will measure a too

big value which is out of range at normal operation.

(At the „t“-menu you can switch off/on the Humidity Control function)

(Note : the humidity sensor needs 1 minute after switching on the power supply dryer to stabilise it’s analog

output signal)

(See 9.2 Monitoring Humidity value)

DIAGNOSE:

1. Check if the dust cap is mounted on the

sensor.

If the dust cap is missing or broken, put a new dust

cap on the humidity sensor.