Recent: Will I need to replace my garden tap?

Mend > Home Heating Systems

Mend Vokera Excell 80SP Combi Boiler Central Heating Fault

Problem with Vokera 80SP combi boiler?

My Vokera Excell 80SP has developed a fault in which I have no hot water or central heating. The pilot light is lit and the fan runs. When the hot water or central heating is turned on the 3 port diverter valve and the primary flow switch activate, the pump and fan both run but the boiler fails to fire up. I have received a reply to suggest the primary flow switch diaphragm may have failed but this doesn't seem to be the case as it appears to be operating correctly. Is there a simple/cheap fix? I am very grateful for all the replies.

Wayne
June 2011
this sounds as if you are not getting gas to the burner, ok pilot light on, so gas to boiler, But it is not switching the gas to full burner. Cheap, probably not that cheap, you need to get someone that knows.
Without doing a series of checks, difficult to say where fault lies, you say primary flow is ok, But is it? might seem to operate, But does it? As you have gone as far as you are able, get someone in, expensive I know, But what choice?

SD
June 2011

Automatic Answer

We may have found other answers which could help you.

Click here for Combi Boiler Central Heating Fault

Related Questions ...

Mend boiler diverter valve intermittent fault
1

Baxi Combi Instant HE80 boiler?

Intermittent fault on the hot water. Sometimes it comes on but when it doesn't I can sometimes get it on by tu... [Read more]
Mend boiler central heating pcb
1

Fault on fan or flue?

Our recently installed Main Combi 30 He ECO boiler is displaying a 50 degree LED fault (Fault on fan or flue).... [Read more]
Mend combi boiler central heating fault
1

240 combi boiler reduce hot water temperature?

The temperature of the hot water is reduced from normal although the central heating radiators are fine has an... [Read more]
Mend boiler heating fault
1

boiler down cos low water pressure?

Our combi Boiler wont switch on the fault code is saying that there is low water pressure in the central heati... [Read more]
Mend combi boiler central heating fault
2

hot water failing but central heating ok?

My britony se80 combi boiler has a fault my central heating works fine but I can't get any hot water withou... [Read more]
Mend combi boiler central heating fault
4

have a baxi 105e combi boiler but the heating wont turn on?

the water runs hot and combi seems to be working fine but the central heating wont turn on thermostat turned u... [Read more]
Mend locking out central fault pcb
1

Halstead Finest Combi Boiler Locking Out?

When a hot tap is turned on and the central heating is not on or on demand, the hot water flows whenever a dem... [Read more]
Mend boiler promax system pressure
1

Central heating Potterton Promax Combi HE boiler has gone down - no heat at?

Hi, can you please advise how I can fix my central heating which has gone off and showing fault E119 low syste... [Read more]
Mend Ferroli Combi Fault
6

Ferroli Optimax He 31C Combi fault?

Hi, I have a Ferroli Optimax He 31C Combi gas boiler. In the morning it regularly locks out on a F03 code eve... [Read more]
Mend boiler central heating pressure
1

I Have a Britony combi SE boiler I have had to remove and refit a radiator ?

I Have a Britony combi SE Boiler and have removed a refitted a radiator i have opend all the valves on the rad... [Read more]
Mend boiler fault thermistor
1

Hi i have a britony combi se coming up with 50, 70, 80!?

Hi i have a boiler fault which is flashing 50, 70, 80, checked the fault finding guide which says central heat... [Read more]
Mend combi boiler central heating gas pressure
1

Shower not working properly on baxi with calor gas?

I have a combi baxi which is run on calor gas. The central heating seems to work fine but the shower is now no... [Read more]
Mend combi ch boiler
1

chaffoteaux britony combi 80 g20 20mbar - h/w ok, c/h always on?

My boiler has recently started the central heating when switched to 1 (h/w only) or 2 (c/h and h/w) even when ... [Read more]
Mend boiler hot heating switch
1

Ravenheat LS100T combi boiler?

The boiler is not working on either the hot water or the central heating. When I go to switch it on the green ... [Read more]
Mend combi boiler central heating boiler repair
2

How can I fix my Ideal Isar HE24 Combi Boiler?

I have an Ideal Isar HE24 Combi Boiler. The central heating light is flashing but the boiler won't kick in and... [Read more]

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...