Problem with Ideal Isar HE24

Joined
22 Jan 2011
Messages
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Location
Devon
Country
United Kingdom
Hi All,
I wonder if anyone can help me. The problem that I am having is that the central heating does not seem to be working anymore. I do not have any error messgaes flashing on the display. I only have a "d" and a falshing burner sign. "c" does not come up (only when switching the boiler on it comes up for few seconds).
I have hot water no problem - issue seems to be affecting the central heating only. I checked the programmer and the thermostat and they seem to be working - I can change the heating modes no problem on the programmer. Theres is a normal clicking sound when changing the heating on from off but unfortunately burner does not fire up. Thermostat is set to maximum and the programmer is set to always on. Is there anyhting else I can check?
 
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HI

common fault on these boilers.diverter valve head becoming jammed.but better to carry out other checks first .
 
thanks for your replies - started working after I increased the pressure to 1,5 bar and switched it off and on couple of times.
:)
 
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its a common problem on these and its probably due to the boiler being so sensitive to hot water passing through.
Countless times i came to council properties who called me out on the basis of no hot water but there was always a tap with a slight drip.
basicly if D's displayed id check all the hot taps

Ray
 

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