Hi all
First time hear looking for a bit of assistance
I have a ideal isar he30 combi
Not my choice was in house when moved in
Probably about 5years old
With a draylon digistat rf3 thermostat
Problem was
Boiler failed to start before Xmas
1: had no control display and boiler wouldn't fire
Found a drip from heat exchanger had corroded the purple link cable
Have fixed that and display back on
2: boiler read 4bar pressure ! Seems odd I thought ! Well that was caused by a cowboy changing the needle back 2 bar so they could fill up system and give a faulse 2bar reading when actually 4 bar in system to allow them to escape long enough !!!!!!!
I fixed both faults and all was fine
However two days ago was awoken by a noise that sounds like the boiler is vibrating very loudly !
Examined some more found condensing trap clogged so cleaned boiler still was noisy and then noticed my wireless draylon digistat rf3 and Scr are playing up
The Scr had red light
So done the setup ! Learn mode right batts left batts flash etc and that came back on and boiler fires etc !
After a while I believe coms are lost and boiler seems to try to fire on it's own even though there is no call for heat
Basically I'm trying to fathom if the prob lies with boiler or stat
Last night at 1am the stat showed no demand for CH no flame and yet the boiler was trying to fire and loud vibration noise
This-morning had no coms (red light on SCR) so again reprogrammed and got coms back
And boiler seems to operate Ok
Is all a bit odd I don't understand why if the stat isn't calling for heat why the boiler is trying to fire ! Unless it's a side effect from the stat loosing coms
Can anyone assist with some ideas please !!
First time hear looking for a bit of assistance
I have a ideal isar he30 combi
Not my choice was in house when moved in
Probably about 5years old
With a draylon digistat rf3 thermostat
Problem was
Boiler failed to start before Xmas
1: had no control display and boiler wouldn't fire
Found a drip from heat exchanger had corroded the purple link cable
Have fixed that and display back on
2: boiler read 4bar pressure ! Seems odd I thought ! Well that was caused by a cowboy changing the needle back 2 bar so they could fill up system and give a faulse 2bar reading when actually 4 bar in system to allow them to escape long enough !!!!!!!
I fixed both faults and all was fine
However two days ago was awoken by a noise that sounds like the boiler is vibrating very loudly !
Examined some more found condensing trap clogged so cleaned boiler still was noisy and then noticed my wireless draylon digistat rf3 and Scr are playing up
The Scr had red light
So done the setup ! Learn mode right batts left batts flash etc and that came back on and boiler fires etc !
After a while I believe coms are lost and boiler seems to try to fire on it's own even though there is no call for heat
Basically I'm trying to fathom if the prob lies with boiler or stat
Last night at 1am the stat showed no demand for CH no flame and yet the boiler was trying to fire and loud vibration noise
This-morning had no coms (red light on SCR) so again reprogrammed and got coms back
And boiler seems to operate Ok
Is all a bit odd I don't understand why if the stat isn't calling for heat why the boiler is trying to fire ! Unless it's a side effect from the stat loosing coms
Can anyone assist with some ideas please !!