EBME Forums Forums Maintenance Technical Assistance TUTTNAUER 3870E NOT WORKING CORRECTLY

Ariel, perhaps do you have the user or service manual for a Maquet HS22K5?

No need to mention on me, if I ever have I'll send it immediately.

Have you ask our friend google?

Yes, google doesnt have it, very difficult ot find it.

My unit is now working fine on the 121°C programas.
When we choose the 134°C programs, temp and pressure rises up to 124°C in a correct relationship, then it starts to fall, temp. reaches 134 but pressure is around 30psi below what it should be, so the unit gives a too long time error, as I imagine, is waiting for the pressure to be the correct one. I will try to look for pressure leaks, or bad valves may be??? Any toughts are welcome.

Door seal?

Clog? bad valves?

Dear friends: Finally solved all the issues with this unit, so first of all thank you all for your colaboration and always good will. Problems found:

1. No drying cycles were taking place, and if chosen only a dry cycle the unit will block.

Solution: 1. Damage fuse carrier
2. Defective memory on the main PCB AJUNC3

2. Lost of pressure: 1. The seal on the door was with a crack, changed it for a new one.
2. Exhaust Valved worm out, changed with a new one.

3. Unit now working OK

Best regards to all of you.

What happened? how come the memory on the PCB got deffective?

I dont know. We took this unit from the customer after they had a bad experience with the technical service of Tuttnaer representative in the country. Maybe some kind of electrical pike??

There's a lot of them about here, too.