Potterton 80e lockout

shadwell · 7 Dec 2006

Hello,
Ive been having problems with my combi for a while now. The original problem was that with the hot water running on its own(central heating not used) the system would be satis. When the central heating is on and you then run the hot water, when the water is turned off, the lockout led comes on the control panel.

An engineer came out and replaced the divertor valve, control panel led reset button pcb and motherboard pcb.
The problem seemed to have been cured and as soon s the engineer left the problem persisted but the lockout light would come on over a inconsistent period.

wayne.

ChrisR · 7 Dec 2006

WHich boiler is it? Let me hazard a guess it's a Puma, and it needs a new Domestic Hot Water (tap water) flow switch.
I wonder if it needed all the other bits.

shadwell · 7 Dec 2006

yes it is a puma 80e

dotto · 7 Dec 2006

ChrisR said:
WHich boiler is it? Let me hazard a guess it's a Puma, and it needs a new Domestic Hot Water (tap water) flow switch.
I wonder if it needed all the other bits.

ChrisR, if system is running ok when HW only is on, how can it be the DHW flow switch?

Rob · 7 Dec 2006

the flow switch sticks after the tap has been turned off, so within a few seconds it locks out.

ChrisR · 7 Dec 2006

If the DV is working the water goes round the heating, so it takes a LONG time to lock out. WHen the wax capsule's tired it locks out quicker cos it stays in HW position longer.

Dotto - look at the red light on the pcb - it should go OUT as soon as you turn the hw off.

dotto · 7 Dec 2006

ChrisR said:
If the DV is working the water goes round the heating, so it takes a LONG time to lock out. WHen the wax capsule's tired it locks out quicker cos it stays in HW position longer.

Dotto - look at the red light on the pcb - it should go OUT as soon as you turn the hw off.

Thanks 4 the explanation ChrisR.

diynot

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Potterton 80e lockout

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