Hi,


First time poster :).

I recently turned off the mains electricity using trip switch to do some work to replace an extractor fan in the bathroom. I had a de-humidifer running upstairs at the time. When i had finished with the extractor i turned the mains electricity back on and noticed the upstairs de-humidifer not working.

I checked the socket in that it was live with a table lamp and have also replaced the fuse on the plug of the de-humidfier itself.

Is there something else i could try before giving up on this machine and buying a new one ?? It was about 9 months old, i checked the shop (BnQ) on-line to link the dehumidifier but doesn't seem to have it available on-line any more it was a BnQ brand.

Cheers,

JP

There are two types of de-humidifier. Some have a rotating disc and the air to be dried is blown through the disc which is turning slowly to a second position where hot air is blown through disc to dry it out again. Likely 4 connections for hoses. Very little to go wrong and unlikely all motors will fail together.

The other type uses a fridge unit and cools down the air so water will drop out of the air. Then re-heats it as it passes through the condenser. These normally have a bucket to catch the water. The problem with all fridge units is when they stop under load the pressures in the refrigerant mean it's very hard for them to restart. Often they have an overload which will auto reset so once stopped it will on restart trip overload allowing the pressures to equalise before trying to restart again. Working in hot countries we were told if we had to switch off supply we should wait 5 minutes before reinstating it to allow the Aircons to equalise before the supply returned. The overload was a unit which clipped onto the main motor and were UK electricians had not waited the 5 minutes it was a regular job replacing these units.

In some cases tipping the unit upside down and then returning it correct way up and waiting 24 hours would cure the problem and allow them to re-start. Exactly what it did I don't know it was found by accident and then we started to use it as a repair method. Clearly something to do with the refrigerant and you will see most fridge/freezers say to let them stand 24 hours once sited before turning on.

Of course it may be other type or another fault but it may help?

Excellent response ill have to give it a try.

Many thanks for the advise and information

JP