No heating

Rodders53

Batteries  will be in the RF thermostat / display unit in hallway.

https://www.draytoncontrols.co.uk/sites/default/files/Digistat+RF SCR Quick Start Guide.pdf  is the quick start guide to the units and includes how to re-pair the two.
Try that before replacing the batteries?  It may all come good?

It appears that a brief press of button 2 (override) of the box next to the boiler should make the boiler CH circuits run in 'manual' mode, even if the RF thermostat unit's batteries are exhausted?

You'll need to find the manual for the RF thermostat as well in all probability to set that up properly?

Bendy_House

The green light apparently indicates that the boiler IS being told to come on. The flashing red suggests a poor connection between the two WiFi units, and the most likely cause is low battery power.

https://www.draytoncontrols.co.uk/sites/default/files/Digistat%2BRF%20SCR%20Quick%20Start%20Guide.pdf

Bendy_House

Nice, Rodders.

Is that your thermostat model, Luna? If it has a digital LCD display, is it dim, or does it show a flashing battery symbol?

LunaD

LunaD said:

Bendy_House said:

Meanwhile, pressing button '2' should override the 'stat and turn your heating on. Press it again and it should go off. So you shouldn't be without heating.

(Bear in mind when it's on using the override, it'll stay on until you manually turn it off again by pressing that '2' again. The thermostat won't have any effect.)

Thanks, I will give that a try now. So we will have to always do it like that by pressing 2? Or once batteries replaced we won’t need to press the override  2 button? 

Thermostat in hallway. I now see battery is flashing on that too lol. 

LunaD

Rodders53 said:

Batteries  will be in the RF thermostat / display unit in hallway.

https://www.draytoncontrols.co.uk/sites/default/files/Digistat+RF SCR Quick Start Guide.pdf  is the quick start guide to the units and includes how to re-pair the two.
Try that before replacing the batteries?  It may all come good?

It appears that a brief press of button 2 (override) of the box next to the boiler should make the boiler CH circuits run in 'manual' mode, even if the RF thermostat unit's batteries are exhausted?

You'll need to find the manual for the RF thermostat as well in all probability to set that up properly?

Thank you. I’ve attached a photo of the hallway thermostat too. That is flashing low battery now.

Ectophile

Do consider the possibility that it isn't the remote wireless thermostat that's broken.

My heating would intermittently fail to come on last year. I replaced the batteries, but it didn't help. The receiver unit showed all the right lights to say it was calling for heating.

It was only with some fault finding that I found the relay in the receiver was broken. It was failing to turn the boiler on.

PS intermittent flashing of the red light is normal. It flashes when receiving data from the wireless thermostat.

Bendy_House

That's pretty conclusive, then!

It's Drayton's RF701 model, then. Plenty info online.

Good chance your 'cover' wouldn't actually cover the replacement of batteries, as this is considered a 'user' issue - a 'consumable' rather than a fault.

Ectophile

Another possibility is that it's the valve that diverts the hot water to either the tank or the radiators. If that's jammed in the hot water position, then the boiler will never start.

Bendy_House

I suspect it's a combi boiler.

I think Luna has arrived at the cause

LunaD

Bendy_House said:

That's pretty conclusive, then!

It's Drayton's RF701 model, then. Plenty info online.

Good chance your 'cover' wouldn't actually cover the replacement of batteries, as this is considered a 'user' issue - a 'consumable' rather than a fault.

My husband replaced the batteries, battery light off on thermostat and box by boiler has stopped flashing red alarm. The radiators are warmer than they were before but still not hot like they should be. Very odd. I’ve kept it on a good hour and they’re not hot like they should be. 

Another thing I’ve noticed is I’ll turn it on say 24c and it’s on but after an hour or so I’ll go check the thermostat and it’s on 14c like it’s turned itself off. No one has touched it. I’m so confused lol.