Dec180e probe - DeLonghi DE400 Dehumidifier

Thermostat probe sensor code

Probe fault? Temperature sensing probe may have loose connection or water in the tip.

Check the compressor relay. The compressor relay can be accessed by removing the terminal cover box. The cover is held on by tension or with a retaining clip.Beneath the terminal cover is found the compressor relay , overload protector and the electrical terminals of the compressor motor. Remove the compressor relay by pulling it straight off from the compressor. Pull the wire off of the side terminal of the relay. It is connected with a slip on connector. Firmly pull the connector, do not pull on the wire. You may need to use a pair of needle-nose pliers.
Inspect the connector and terminal for corrosion. If either is corroded they should be cleaned or replaced.
There are two types of relays you may encounter, wire coil and solid state. If the relay has an exposed wound wire coil it can be tested for continuity. Otherwise, the relay is of solid state design and requires specialized equipment for testing.
How To Test the Compressor Relay

Test the compressor relay for continuity using a multimeter . Set the multimeter to the ohms setting X1.
With the relay upside down, place the probes into the terminals labeled "S" and "M". The multimeter should display a reading of zero ohms, indicating continuity (or if using a continuity tester, it should light up).

With the probes still in place, turn the relay over. You should hear the click of the magnetic switch engaging. The multimeter should now display an ohm reading of infinity (or the tester should not light up).
Turn the relay upside down again, place the probe on the "S" terminal and place it on the side terminal labeled "L".

The multimeter should now display a reading of zero ohms (continuity). Turn the relay over and the reading should change to infinity.
With the relay upside down place one probe on the "L" terminal and the other probe on terminal labeled "M".

The multimeter should display a reading of zero ohms. Turn the relay over and the reading will stay the same, zero ohms.
If the compressor relay does not pass all of these tests, it should be replaced.

Hi Mike

P1 is air probe faulty

Regards

Gordon

you can download the manual here: www.delonghi.co.uk/pdf_files/DEC180E.pdf

thanks

Paddy

depending on type of probe single wire which most likely is you will need to clean probe with lime away

Hi,

may i know what happen to your maytag?


you can tell to me the problem.


thanks,

See if you have a grounded circut in the appliance. Check 1 flat to your volt ohm meter. Connect the other probe from meter to the other flat. And you should get a reading of resistance. Next connect 1 probe to the flat then the other to ground. A reading - indicates nothing until the next step. Now try the other flat to the ground?

1 Of these flats are connected to the nutural and possible feed through or back to ground in the appliance. The other one though should not read to ground. If you get a ground reading on both flat of the plug in someting is together that should not be.

If you dont get a readign try plugging in at a different outlet. A circut that has too much load will cause circut breakes to over heat and trip.

If it runs at a different outlet make sure its on a different breaker. If its on the same breaker it will probably start acting up again.

DOes this help? If so please rate me as high as possible If not please restate your problem to help me understand it better. Thnaks for using Fixya and Good Luck.

Running a dehumidifier when the ambient temperature is to low will cause freeze-ups. Also running it when the dew point of the moisture in the air is to low will cause it to freeze up when you set it to low which would be a higher number on the set point.

The hand written number on the probe casing is probably a quality control inspector number.

It sounds as if the temperature sensor probe is touching the cold coil inside. The sensor is located in the incoming airflow, in front of the cold coil. It must not touch the coil. This should be visible with the cover off. You can gently bent the sensor away fron the coil, 1/4-1/2" of clearance is plenty.