Water pump change. No heating upstairs

kkhornet

Our water pump gave up today and the landlord called up and fit a new one.

Problem now is that we've no rads working upstairs at all.

I've bled them all, downstairs are red hot and upstairs stone cold.

I turned off all downstairs and then upstairs heats up quickly but when I turn back on downstairs they go cold again.

Tank in the attic is full and no problem with the ballcock, all rads are bled, burner is burning and pump is pumping.

What do I do???

John.G

kkhornet wrote: »

Our water pump gave up today and the landlord called up and fit a new one.

Problem now is that we've no rads working upstairs at all.

I've bled them all, downstairs are red hot and upstairs stone cold.

I turned off all downstairs and then upstairs heats up quickly but when I turn back on downstairs they go cold again.

Tank in the attic is full and no problem with the ballcock, all rads are bled, burner is burning and pump is pumping.

What do I do???

A bit surprising that all the rads when on together aren't warm at least as they are all are bled, with no air, so it possibly points to the pump setting.

All new replacement pumps now are energy efficient (A rated) and have multiple settings, if you post the make/model of the new pump, may be able to help. Also if you still have it, the make/model of the old pump and you may be able to see its last speed setting, ie 1, 2, or 3., this would assist greatly in setting up the new one quickly.

kkhornet

John.G wrote: »

A bit surprising that all the rads when on together aren't warm at least as they are all are bled, with no air, so it possibly points to the pump setting.

All new replacement pumps now are energy efficient (A rated) and have multiple settings, if you post the make/model of the new pump, may be able to help. Also if you still have it, the make/model of the old pump and you may be able to see its last speed setting, ie 1, 2, or 3., this would assist greatly in setting up the new one quickly.

Yeah they're either hot downstairs and stone cold upstairs or vice versa. There's no warm or in between.
Unfortunately beginning a night shift now but will get a pic uploaded when I get home.
Thanks

kkhornet

Got sorted in the end after fiddling about with the pump settings. Cheers

John.G

kkhornet wrote: »

Got sorted in the end after fiddling about with the pump settings. Cheers

As a matter of interest what is the pump make?.

kkhornet

John.G wrote: »

As a matter of interest what is the pump make?.

It's either DAB or evosta. Made in Italy anyway whichever it is

John.G

kkhornet wrote: »

It's either DAB or evosta. Made in Italy anyway whichever it is

It may be a re badged DAB Evosta sold by heat merchants as a HM Pro 4-7 which has 3 fixed speed settings and 6 PP (proportional pressure) settings. I know of one person not too far from me who has retro fitted one of these and runs it in PP6 mode, ~ a modulating 5M pump at that setting.

doolox

When you realise that heating engineers can be like train spotters or plane spotters. Very good sharing of knowledge all the same.