Baxi megaflo error 78

Nibler

Any one knows what error 78 means for Baxi Megaflo Compact? Boiler works OK but it often struggles to start flashing flame icon and number 78. After a couple of attempts it starts and works fine ...

Robbie.G

Nibler wrote: »

Any one knows what error 78 means for Baxi Megaflo Compact? Boiler works OK but it often struggles to start flashing flame icon and number 78. After a couple of attempts it starts and works fine ...

It's a water pressure sensor fault
Check your pressure gauge should be over 1 bar
If pressure ok your probly looking at a new sensor

RJF

It's a gas valve problem.
You need an RGI to look at it. A good one.

Robbie.G

The fault code doesn't match the fault
The code is water pressure sensor
The fault is more of a gas fault
Gas valve,electrodes ,rectifying probe

RJF

E78 is minimum gas valve current fault.
E79 max gas valve current fault.

Nibler

Water pressure is fine so I guess it is something else...

Where can I find "a good RGI"? The guy who installed / is servicing my boiler didn't know what the error means.

RJF

Nibler wrote: »

Any one knows what error 78 means for Baxi Megaflo Compact? Boiler works OK but it often struggles to start flashing flame icon and number 78. After a couple of attempts it starts and works fine ...

Nibler- does it flash E first and then 78?

Or does it flash just 78?

If it's just 78 with no E then it's just a status code, nothing to worry about.

Nibler

It flashes E, 78, crossed flame icon, spanner icon, flame icon.

RJF

Sorry, you need a RGI.
Tell the guy you have to contact Baxi and educate himself on the fault since you have already used (and paid) him for installation and service.
Since he is RGI, he should have enough basic training to deal with it once informed.
If not he should find someone who can.

Robbie.G

RJF wrote: »

E78 is minimum gas valve current fault.
E79 max gas valve current fault.

Where did you find that when I checked I'm getting e78 as pressure sensor

Robbie.G

Robbie.G wrote: »

Where did you find that when I checked I'm getting e78 as pressure sensor

I'm after double checking and on the Baxi and app site it says sensor
On the Potterton myson site it says gas valve

RJF

Robbie.G wrote: »

I'm after double checking and on the Baxi and app site it says sensor
On the Potterton myson site it says gas valve

One place is here (.ie site)
http://www.baxipottertonmyson.ie/trade-area/technical-advice/1489.htm
which I believe to be correct.

The ref here (.uk site)
http://www.baxi.co.uk/trade-area/support/error-codes.htm#aqAccordion5
I think is an error.

Look at the symptoms.:)

RJF

God forbid if we looked here.
http://letsfixitblog.tumblr.com/post/86489059105/boiler-error-codes-baxi-ga-range-e78