What is OFF RT AND BUS on glow worm boiler?

[fitzykev]

What does the OFF RT and BUS do in a glowworm boiler?

 

[Deleted member 267285]

Burner off isn’t used often, I’m told it’s for ufh or a condensate pump.
RT is usually mains voltage room thermostat
Ebus is for ebus controlled room thermostats used by the manufacturer, Glow Worm in your case. They “talk” to the boiler better.

 

[fitzykev]

Basically I fitted a wireless thermostat 3 years ago worked great. Removed it today and boiler turns on no problem buy boiler won't even try to fire up. What do I need to do?

 

[Deleted member 267285]

Is it a combi boiler or other?

 

[fitzykev]

Yes its a glow worm easicom 28c

 

[Deleted member 267285]

Does it fire for hot water, just not heating?

 

[fitzykev]

No its not firing for hot water.

 

[fitzykev]

Would this have something to do with it?

 

[Deleted member 267285]

Would this have something to do with it?

Edited. My apologies, Yes, put the link(s) back as it came from factory.

 

[Deleted member 267285]

My apologies, edited previous reply.

 

[fitzykev]

I only have one link and I don't know which one to put it I?

 

[Deleted member 267285]

Usually RT

 

[fitzykev]

Sorted. I Had to make a wire for the RT where I took out the wireless reciever. Panicked a bit. Handed my notice to landlord today. paying last month with deposit. Thought I was going to have to pay for a new boiler

 

[fitzykev]

Thank you for your help last night. Had you not told me to put the little bits of wiring back exactly how they where I would still have no hot water.

 

[DP]

Am I missing something?
That link is to run heating. Hot water is activated by combination part of the circuit when a hot tap is run.
That link would be required if boiler is a heat only appliance.
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