Baxi combi hot water issue, to call out or not to call out?

[Lemons]

For two days I've had no hot water but heating working ok, with a Baxi HE instant combi. Switch on hot tap, water led lights up on boiler but the burner doesn't ignite, cold water comes out. Turn off tap, boiler switches to heating led and burner ignites ok and heating works. Preheat of water works ok, but I don't usually use this and is only a tiny amount anyway.

I was just going to call out a plumber as I suspected a faulty diverter valve stuck on heating. BUT I just switched on hot tap and its now working after 2 days! Is it possible the diverter valve has become unstuck and sorted itself out? I really don't want boiler issues over Christmas but also don't want to call someone out to something that actually seems to work ok now and might not need fixing.

Only other thing is pressure jumps from 0.5-1bar cold to about 3 with the heating. When i first noticed the issue with the hot water, the pressure was practically at zero.. i started to top it up but as soon as i opened the filling valve the pressure immediately jumped to 1 bar with just a few drops of water. I've always had 'jumpy' pressure and needed to top up every once in a while but don't recall pressure at as high as 3 bar with heating before.

Thank you in advance for any

EDIT... just realised probably should go on central heating forum apologies!

 

[AMGasServices]

You’d be best calling a gas engineer out it seems like you’ve got problem that you can’t get sorted yourself

 

[Riley]

Has it been serviced recently??? Sounds like you have a few issues going on there

 

[Lemons]

I have it serviced every year.. last done in Sept. Maybe it's worth a call out then...I don't want to appear as a paranoid woman as it all seems to work ok now. Just thought (hoping) the diverter valve might have got stuck and righted itself, but obviously I'm not a plumber/ engineer!

 

[Riley]

If the pressure is shooting up then that could be a whole seperate problem

 

[Lemons]

Oh crumbs...probably needs to be looked at for various things then...I was just happy to have my hot water back!

 

[Riley]

Not doing scare tactics or anything like that as safety devices should take care of it but point these issues out to a a gas engineer

 

[Lemons]

Ok thanks very much, it's good to have your opinion.. don't feel too silly to call someone out now esp regarding the pressure issue.

 

[Allgoode]

I would advise you check out the price for Baxi to do a fixed price repair as sometimes that can be the most cost effective option if you have several potential faults with your boiler.

May not get them out before Christmas though.

Might be worth posting your area & requirements to see if there are any local gas engineers around that can squeeze you into there busy schedules.

Hope this helps,

Andy (Allgoode)