Salus RT500RF Showing heating is on, but it's not! Help!

[ruth0220]

After trawling through the internet for over an hour, I thought I'd try this forum. Our Salus hand-held RT500RF is showing that the central heating is on, ie. the flame is showing on the display, but the heating is NOT on. I've looked through the manual but it doesn't mention this problem. Can anyone help? We have hot water so the boiler is working. The problem seems to stem from the hand-held unit not communicating with the boiler. Thanks in advance. Ruth

 

[MikeyGas]

it sounds like you have a loose wiring connection in your reciever unit, specifically between the Common (C) and the Normally open (NO) (this is the box mounted near your boiler with the red and green LED lights on). Isolate the electrical supply to this box and check the wiring.

 

[ruth0220]

Thanks, I've just been on to a heating engineer and he's told me the very same thing. Appreciate it.

 

[Agile]

When did you last change the batteries in the sending unit? They need good Duracell batteries.

Disconnecting and then repowering the receiving unit after a minute MIGHT get it to work again.

Tony

 

[Philnotts]

Hi all. Sorry to jump on the band wagon late but our heating sometimes comes on as it should but then at other times we have no hot rads, even though it is indicated that they should be warming up via the flash flame. Any ideas?

Thanks phil.

 

[transam]

If the hand held stat is communicating with the reciever unit , a green light should be on , this would indicate that it is receiving an on signal ??

afaik ?

you can also alter the freqency on these units by moving dip switches , this some times re establishes communication ????????

 

[suttydad]

Hope you got it sorted, had the same problem with one of my customers and found out the receiver the one with the two leds was faulty. They cannot be repaired because of the electronics within the unit. Bought a new one and fitted it working fine now. £60.00 for a new one but do as I will do, keep the receipt and the box from the new one and in a couple of weeks take the old one back to supplier and tell them its faulty get a refund. It is a common problem with the salus unit

 

[bolshy]

I've fitted loads of these and never had any breakdowns....anyway, Upon a demand for heating, the sender unit (programmer) flame comes on and it will resend this call for heat to the receiver every few minutes, to ensure the receiver is in the correct state. The receiver has a red light on for power, and a green light on if the sender unit is calling for heat. No green light means the receiver is not going to turn the boiler on. If the green light is on, but the boiler is not, then the wiring between the receiver and the boiler may be suspect, or the receiver is defective. A heating engineer should be able to nail the problem in a few minutes. If the flame is on the sender, but the green light doesn't come on at the receiver, then weak batteries or radio interference could be the problem. New wireless controls fitted recently in a home near yours can sometimes begin to affect your receiver (crosstalk), until you select another frequency. I wouldn't rule out a faulty unit, but I wouldn't say it's a common problem either. All the units I've fitted (dozens) are still going strong. Hope this helps.