4 RPM Replacement Universal Synchronous Synchron Motor For Honeywell or Drayton Motorised Valves TC-SYN

It's fit and works perfectly to Honeywell Home V4043H 1056

I thought this unit was the issue so replaced it. Nice and simple to replace. Comes with all the parts. In the end the issue was the controller which seems to be the most common fault. For those looking to buy for a boiler that doesn't warm the radiators, first remove the switch unit from the water pipes (to stop any doubt over the power of the motor). Set the boiler to central heating. Now check that the switch completes the transition from hot water to central heating on its own. If it does then it's this motor if it doesn't then most likely the controller, next check should confirm. Now try it again, but this time give it a helping hand. If it just needs a gentle nudge then I suspect you have same issue as me which was the controller was fried. Only thing for that is a new unit. Had I realised how these things work, I'd have saved myself a few bob

Easy fix for my faulty 3-way valve, comes with crimp connectors to make the job easy! The last time I had to swap it was 5 years ago. Very good value.

Item seems decent quality and did the job. For anyone fitting this to a Drayton ZA6 actuator like I have, there seemed to be slight variance in the build tolerances which meant there was some resistance in the mechanism causing the springs not to return. I got past this by loosening the two motor fixing screws until there was enough freedom on the springs - it meant the assembly wasn't quite as tight as before but still safe and adequate to fit back on the valve body.

It is not a universal fit, I had to file down the two fixing taps as they did not fit into the fixing recess's in the Danfoss HP2A motorised valve base and was preventing the drive gear of the motor meshing with the opener gear, after this was complete and assembled, I test ran the motor several times and it worked. Even with the extra adjustments required to this motor it still works out much cheaper than buying the complete valve assembly.

Excellent product and cheaper than buying the complete valve.

It works with an ESi valve, but only just. On the original motor, the spindle is longer than the cog and it sits in a little hole. On this valve, the spindle is flush with the cog and is also a bit tighter when mounted. This means the springs aren’t strong enough to return the valve. I got round this by loosening the mounting screws. It did the job, but it isn’t a perfect fit. The motor is good quality and works, so 5 stars.

I have needed to replace the motorised valve on my central heating system and this product is the same as the original one fitted. Once you are aware that this particular part has failed, it is a fairly straightforward process to replace it. All the parts are included in the box and because it’s Amazon arrived within three days. ALWAYS make sure that the electrical supply is properly turned off before you start!!