Powermax 155

[trank78]

I have a Powermax 155 combi boiler made by IMI waterheating (who no longer exist) and i have a problem that i need help with.

The radiators are on constantly even when the programmer says its not.

The pump still pumps hot water to the radiators in the toilets which are like saunas in the summer.

There are no thermostats on these radiators so we just have to put up with it.

I have been told that this is a fault with the programmer.

Is this the case and how can i get hold of a new one because IMI don't exist.

Cherrs for the help

 

[kevplumb]

gc number is 379-613 horstmann programmer oem

might be easier and cheaper to have an external one fitted

instructions and spares here

 

[gazthepottertonengineer]

Potterton bought the Range Powermax range of boilers off them so any problems You could call them

Also sounds more like the relay to the pump has got stuck

and fitting an external programmer on these is not easy

 

[kevplumb]

stand corrected

 

[gstens baxi]

Depending on what type of property you live in , the 155 should be fitted with a anti-gravity valve fitted on the heating flow pipe to stop gravity circulation when heating not on. This is refered to in the installation instructions.

 

[gazthepottertonengineer]

good point i forgot about that one G must be why i get more recalls than you