Vokera 15 vhe Boiler

[John.g]

You can check the pump overrun any time (maybe first) just start the boiler on either HW or CH, then shut it down after a few minutes and see if pump runs on for a few minutes, if not, that should be addressed.

 

[mattgriff88]

You can check the pump overrun any time (maybe first) just start the boiler on either HW or CH, then shut it down after a few minutes and see if pump runs on for a few minutes, if not, that should be addressed.

Hi,

Heating has been on for 2hrs.
Rooms have hit temperature and the heating has now switched off.

Both pipes either side of the ABV are hot
Pump cut straight off with heating.

 

[mattgriff88]

Hi,

Heating has been on for 2hrs.
Rooms have hit temperature and the heating has now switched off.

Both pipes either side of the ABV are hot
Pump cut straight off with heating.

Temp on boiler was at 61 when it cut off and its now on 82 and still climbing.

 

[mattgriff88]

Temp on boiler was at 61 when it cut off and its now on 82 and still climbing.

Up to 87 and then threw code 79.

 

[John.g]

Pump is probably wired incorrectly Matt, it should be wired directly from the boiler which should supply the overrun period, it's probably wired fom the zone valves auxiliary contacts that tell the boiler to fire when any one zone valve is open.

 

[mattgriff88]

Pump is probably wired incorrectly Matt, it should be wired directly from the boiler which should supply the overrun period, it's probably wired fom the zone valves auxiliary contacts that tell the boiler to fire when any one zone valve is open.

Ok thanks for your help.
Big/costly job to put right or easy fix?

 

[John.g]

Probably a few hours work but check first that your boiler has the overrun.

 

[mattgriff88]

Probably a few hours work but check first that your boiler has the overrun.

Hi Mate,

So I'm having a bit of trouble getting somone to do this job.
I have tried getting a couple of quotes over the weekend but none seems interested in actually running the cable.
The boiler is downstairs in the kitchen and the pump is up stairs in the bathroom. (Opposite ends of the house) probably not worth their time.

I have measured up and I'm looking at around 20m of cable.

I might have a go at running the cable myself and then getting a sparky in to connect up.

What size cable should I be buying?
1mm 3 core good enough?
Would it need to be heat resistant cable or anything special?

Thanks

 

[Basher]

I have measured up and I'm looking at around 20m of cable.

Assuming permanent live mains is available where the pump is, there is a 'radio' link option that could avoid the hassle of having to run a cable. Here's an example - it costs about £100, so you might prefer hard wiring!

MAINSLINK 5KM WIRELESS MAINS TO MAINS 230VAC LINK

MAINSLINK is a plug and play solution to replace a switched live cable. When 230Vac “LIVE” is input to the transmitter; the receiver provides a 230Vac “LIVE” switched output at its screw terminals. When a cable run is awkward or expensive to achieve, the MAINSLINK can be used, saving time and...

www.rfsolutions.co.uk

 

[mattgriff88]

Assuming permanent live mains is available where the pump is, there is a 'radio' link option that could avoid the hassle of having to run a cable. Here's an example - it costs about £100, so you might prefer hard wiring!

MAINSLINK 5KM WIRELESS MAINS TO MAINS 230VAC LINK

MAINSLINK is a plug and play solution to replace a switched live cable. When 230Vac “LIVE” is input to the transmitter; the receiver provides a 230Vac “LIVE” switched output at its screw terminals. When a cable run is awkward or expensive to achieve, the MAINSLINK can be used, saving time and...

www.rfsolutions.co.uk

Thanks for posting this.

looks like a much better solution.