Riello RDB not firing

S

SparkiAF

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Just had oil delivered after leaving the tank empty for the summer (I know not ideal), asked the guy to bleed it, which he said he did (I had turned it on for him) but noticed after a hour the rads still where not heating (after checking the water wasn't hot either), went to check boiler, seems to be fully bled but will not fire when reset button is pressed (no noise or reaction at all), yet it's distinctly warm, and we cleaned the photo sensor and that made no difference, even tried reset button on thermostat still nothing happens when reset button is pressed, or held down. (it's a Riello RDB by the way). I have no idea what's wrong with it, but it obviously was on for a bit because it's gotten hot. Any ideas on how to get it working. Also I'm in rented so if I contact the land lord to fix it, it could take days, but also not going to pay out myself due to this, hoping I can sort it myself please
 
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It could well need bleeding again, but are there any lights lit on the boiler anywhere......especially the lock out lamp on the burner itself?
What is the boiler make?
John :)
 
There are no lights on it anywhere as far as I can see to be lit... Riello RDB is the only name/make I have for it
 
Not even on the boiler casing, at all? It sounds like the boiler is timed or thermostatically switched off, but there should be illumination somewhere.
Riello RDB is the make and type of the burner only, not the boiler.
John :)
 
In the house there are two thermostats which I turned up hight to make sure it should come on, and the timer switch which I overrode to ON (has been off all summer), but the bit outside (which I thought was the boiler, though could be using wrong term) is a metal box the side comes off, with the Riello RDB in it, grey thermostat box and pipes/tubing, and on the other side there is a vent
 
Could be it has gone out on overheat. If you have the grey box thermostat as in the example picture, unscrew the black cap and press the reset.
 
Got the local bloke to have a look at it, the pump had jammed because it hadn't been used all summer, fixed now though, thank you all
 
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