my towerstat rf won't switch boiler off so heating on full!

[chalkie226]

Hi can someone help? Our baxi boiler is firing up yet the thermostat is not showing fan and temperature in house a whopping 27º! (Its on 19 for night and 21 for day, it fires up regardless) We've followed advice on here and changed battery and tried moving thermostat close to boiler but no luck. Any ideas?

 

[D_Hailsham]

More info about your system would be helpful.

Model of boiler and which model Towerstat will do for a start.

 

[chalkie226]

Sorry, it's a Baxi duo tec boiler and a towerstat rf
wireless thermostat

 

[D_Hailsham]

Sorry, it's a Baxi duo tec boiler

OK, so it's a combi boiler.

Do you have the installation/user instructions for the Towerstat?

Have you tried changing the RF address code, in case your neighbour is using the same stat/address.

Is the green light showing on the receiver when the heating is on at the "wrong time"?

Does the green light go on and off when you change the temperature on the control unit?

 

[chalkie226]

Hi there. Followed instructions and tried changing code. The rx red light flashes as it says in instructions but stays on red when we try a new code or even the default 100. It appears the heating now won't come on but hot water does. On the thermostat I can get the fan to come on changing the temp but its not making boiler fire up. Before the green light came on above the symbol for the heating even though the tx wasn't telling it to fire up.

 

[D_Hailsham]

Did you have the transmitter about 1m from the receiver?

Press button on side of receiver - both lights should flash
Set transmitter to F1 and select a code
Press the Frost (*) button
Lights should stop flashing.
Press Set Button


If that doesn't work, you probably have a faulty unit: Contact Tower -

TFC Group LLP
Tower House
Vale Rise
Tonbridge
Kent
TN9 1TB

Tel: 01732 351 680

 

[chalkie226]

THANK YOU! I am very pleased to report that the boiler appears to be working fine now. We cannot say thank you enough, we are all extremely grateful that you took the time to give us free advice which was extremely helpful and solved our problem. Who ever you are it is lovely to see people helping each other...
Kind regards
The Chalke family..