Baxi bahama not heating

[Vic Spanner]

If you have a sit gas valve and you are getting problems, Then you can always upgrade the boiler with a customer upgrade kit which includes new honeywell gas valve, wiring loom,p.c.b and new drop down frontage..Contact Baxi tech for part number,Sorry cant remerber to hand

 

[gazthepottertonengineer]

If you have a sit gas valve and you are getting problems, Then you can always upgrade the boiler with a customer upgrade kit which includes new honeywell gas valve, wiring loom,p.c.b and new drop down frontage..Contact Baxi tech for part number,Sorry cant remerber to hand

kit is called a CONNAUGHT KIT

Will cost you over £300 though I'd go for a new boiler personally cos even with the kit fitted they aint the best in the world

 

[tws750]

Woooah...£300? nice idea but i think not.

New boiler? hmm, i've read many a tale of woe relating to this one, but if this is the first part i've needed in 8 years, i'll take my chances that i got a "good" one.

I take it a honeywell board wont directly replace a sit one then.

While contemplating all of this, did recall an intermittent problem that i'd just gotten used to.
Every now and again, usually linked to the amount of bubbles in the shower at the time, the hot water would cut out. the solution was to turn off the tap, turn on the heating, wait 5, maybe 10 minutes and turn the tap back on.

Now, if i assume as before that the flowswitches are ok and always have been, then would a sticky relay on the pcb cause this, because if it might then i'm gonna try replacing them.
If only cos i hate being beaten

 

[gazthepottertonengineer]

no honeywell and sit components arent interchangeable and sit bits are fairly hard to come by

if it was me i would try rplacing the diverter valve cartridge it comes witha special spanner to undo it and that what your problem sounds like to me

 

[hellomum]

remove the plugs from the flowswitches

 

[gazthepottertonengineer]

remove the plugs from the flowswitches

Then they wont work at all great

 

[hellomum]

remove the plugs from the flowswitches

Then they wont work at all great

if the ch flowswitch is stuck and a closed circuit it wont fire, taking the plug off will open the circuit.

 

[ollski]

remove the plugs from the flowswitches

Then they wont work at all great

if the ch flowswitch is stuck and a closed circuit it wont fire, taking the plug off will open the circuit.

Well if the dhw flowswitch is stuck closed circuit it won't fire for ch.

 

[ollski]

remove the plugs from the flowswitches

Then they wont work at all great

if the ch flowswitch is stuck and a closed circuit it wont fire, taking the plug off will open the circuit.

Well if the dhw flowswitch is stuck closed circuit it won't fire for ch.

 

[Pallion]

remove the plugs from the flowswitches

Then they wont work at all great

if the ch flowswitch is stuck and a closed circuit it wont fire, taking the plug off will open the circuit.

It's got to be closed circuit to work. Open circuit is when the flow switch has to be cleaned or more likely replaced.

 

[hellomum]

the way i see it is if no water is flowing there will be an open circuit meaning no power through the switch, when there is a flow of water there will be a closed circuit allowing power through the switch. bahama's work bacwards to most boilers , they fire up and then check to see if there is a flow. it will check to see that the flow switch is in the open ie no flow position before firing wont they??

 

[compheat]

i've got the same boiler installed at my mothers house (more fool me) Its been ok for the last 3 years doesn't get a lot of use ( she lives on her own) SIT valve version, in the last 2 months its one thing after another, first flow switches then EFD board. now the fan comes on for a second in heating mode. and nothing happens in hot water mode. So i think its coming out and going in bin.