Potterton Suprima 100 won't start!

[lisaH]

I've just tried to use the central heating system for the first time since last winter but without any success.

The current state of the boiler is as follows:

The electricity supply is switched on. The external timer is on. The room thermostat is on a high temp setting. The boiler thermostat knob is on a mid-high setting.

The pilot light is out.
The red LED is lit but the green LED is not.

If I press Reset, then the green lights up whilst I hold down the reset button and I hear some vague noise in the pipes(?) But the green light goes out again and nothing happens.

Am I missing something obvious or does it sound like an expert needs to have a look?

Any help would be really appreciated.

 

[ChrisR]

Sounds like it's "locking out" because it thinks something is wrong. Roughly how old is it? Recent ones less than a year I think) need the pump to be running before thay'll start, yours could be stuck. But older ones didn't care.
Does the boiler heat the hot water as well - ie during summer?

 

[kevplumb]

is the fan running ?

 

[Baxi-Remeha]

check switched live.....

 

[lisaH]

It's about 2 years old.

I'm not sure if the fan is running. However, if I should be able to hear it, then it's not! Ditto with the pump.

We don't use the boiler for hot water.

 

[kevplumb]

so check that it is
you dont help us we cant help you

 

[lisaH]

I can't hear a fan or pump so I guess that means that it's not working?

 

[kevplumb]

are you sure the proggrammer is switched on


Status Green LED Red LED

Mains ON Only OFF ON

Ext. Call for Heat FLASHING ON
(Boiler set to STNDBY, 2 Per Sec.
Temp. Control set to 'O' Off)

Ext. Call for Heat FLASHING OFF
(STNDBY switch to ON, 2 Per Sec.
Temp. Control set to Max.)

Ignition FLASHING OFF
(i.e. Gas and Sparks ON) 16 Per Sec.

FLAME Detected ON OFF

Boiler Temperature FLASHING ON
Control Satisfied 2 Per Sec.

Lockout OFF FLASHING
2 Per Sec.

hope this makes sense to you