Greenstar 30Si WIRELES STAR

build · Post by **build** » Sat Apr 22, 2023 10:53 pm

Hi All

I have wired a EPH CP4 wirless program/stat to this boiler BUT have a problem.
took out the link in the boiler
The programmer and wirless stat works fine and get 240 volts at boiler

The signal is picked up all fine from the programmer to the receiver and I have 240 volts that is on the 30si boiler all okay
BUT THE BOILER WILL NOT fire up unless I have the old wirless stat set to Maxim.

If I take out the batteries on the old wirless stat the green light on the central heating keeps flashing trying to make connection to the wirless on the old stat

Does anyone know how to disconnect the wirless from the main controls on the main boiler ?

Or have I missed some thing out ?

many thanks

aeromech3 · Post by **aeromech3** » Sun Apr 23, 2023 2:46 pm

To help the Heat Guys: a picture or model of present old stat and do you have the optional built in ST10?

aeromech3 · Post by **aeromech3** » Sun Apr 23, 2023 3:23 pm

build, almost same date last year you asked a similar question for a 24i rsf , perhaps you need to read it again!

build · Post by **build** » Sun Apr 23, 2023 5:04 pm

aeromech3 wrote: ↑Sun Apr 23, 2023 3:23 pm build, almost same date last year you asked a similar question for a 24i rsf , perhaps you need to read it again!

yes you correct BUT if you read what i have put you will see that it is a complete different boiler and different controls

The oher boiler was fixed and working fine with no problems

build · Post by **build** » Sun Apr 23, 2023 5:20 pm

aeromech3 wrote: ↑Sun Apr 23, 2023 2:46 pm To help the Heat Guys: a picture or model of present old stat and do you have the optional built in ST10?

Okay to help

this installed in the boilere now with the external wirless stat
https://*please alert moderator- possible spam post*/site/dray ... gIOSfD_BwE
=======================
Drayton LP20RF Dual Channel Programmer & Digistat+RF Wireless Room Thermostat
====================================================================================================
this what i have installed new

EPH Combi Pack 4 Programmable RF Thermostat

https://www.jtatkinson.co.uk/eph-combi- ... gKEg_D_BwE

aeromech3 · Post by **aeromech3** » Mon Apr 24, 2023 2:08 pm

So you still have the LP20RF connected and the ribbon cable?
Attach fitting instructions for LP, guess reverse applies but not an expert.

build · Post by **build** » Mon Apr 24, 2023 4:10 pm

aeromech3 wrote: ↑Mon Apr 24, 2023 2:08 pm

So you still have the LP20RF connected and the ribbon cable?
Attach fitting instructions for LP, guess reverse applies but not an expert.

Thank you for the info
Yes did know how to disconect the lp20rf BUT that would leave me with no hot water controls
I want to DISABLE the external wifi thermostat, I can take out the batteries on it BUT like I say the green heating light is then seraching for a wifi connection to the external thermostat
so if i can find a way of stopping the main lp20rf from searching for the external stat that will work all okay