Loxone Actuator - Mechanical Fault

[Chris Pitman]

Hi

Anyone else had this error Air Actuator giving message Mechanical Fault?

Gave the error this morning, its communicating with the loxone server, but doing nothing in service mode on app, so cycled the power on system and the valve motor works opened closed a few times took it off the valve (valve pin moves ok and not leaking on rad) and the motor plunger works fine (gave it some resistance with finger and working ok no odd noise etc). 

Running latest version for awhile now.

Any ideas? 

[Techdoctor]

Is it battery powered, or supplied with 24Vdc.  If its battery powered try changing the batteries. But make sure they are a good make, Energizer Ultimate or similar are the best.

[Chris Pitman]

Its connected to 24v using cat6 pair

[leo no]

Try to see if the current suplied by the 24 v transformer id good enough to make the valve change in state, sometimes due  to the high use the transformers get to  hot  and shoot down

El mar., 14 ene. 2020 17:40, 'Chris Pitman' via Loxone English <loxone-...@googlegroups.com> escribió:

Its connected to 24v using cat6 pair

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[Techdoctor]

Bang goes that theory then. 

How many actuators do you have. are they all supplied by the same power supply. Also how have you supplied the power, daisy chain, or star type wiring.  If its daisy chain, where in the chain is the actuator that is giving the problems. If its star how long is the cable run from power supply to actuator.  As Leo suggested it could be a current issue, so what is the wattage of the 24V supply.

[AndyB]

I’ve had 5 fail now (only had 11 to start). I had an intermittent leak on some of the flow controls on the manifold (above the actuators)

3 have failed due to a tiny amount of water ingress - not covered under warranty. Water ingress usually just makes it die (no lights)

2 others had mechanical failure. Turns out at least one had water damage, and had driven past its limit, so the screw thread inside would no longer retract the pin (it had fallen off) unfortunately it was a destructive process to get into it.

I’ve written mine off and on the list to replace with some standard 24/240v on/off NC IP54 actuators once I’ve decided on a sensible priced/managed controller (as well as getting a new manifold - plastic screw flow controls are not a good idea when they have been over tightened.)

[Alistair Banks]

Yes, 3 of mine reporting that today

[Chris Pitman]

Hi, They are supplied off one psu same as mini server, they are wired in a star back to panel this is not the longest run to an actuator this one max 15mtrs. Will have to check psu wattage but could be near its limit now when systems starts up, thro none of the other valves 7 in total have the issue yet.

[Chris Pitman]

Hi Alistair, 

Are you running the latest loxone software 10.2.11.27 ? 

They did two updates one in early december I think which was the main update, then they released this 10.2.11.27 more of a patch, I only install the 'patch' about a week ago but was running the main update from mid dec with no issues.

My actuators are on ver 10.3.11.8

I contacted loxone, they have no idea just to check your heating system is not putting excess pressure on the actuators (ie all actuators off and pump still running) the actuator seems to function ok off rad the motor seems to work fine no odd noise and pressing against plunger it working, they have asked me to return it for them to look at. Will hold off a few days as it seems odd that yours are doing same.

Are yours all off same supply? and assume the others are still fine.