Search the forum,

Combi boiler - Return temperature going up

Post new thread

Discuss Combi boiler - Return temperature going up in the Central Heating Forum area at PlumbersForums.net

R

Renato

Hi,

The outlet of all my radiators are at 55°C, but the boiler keep showing the Return Temperature is 60°C (and keep raising at 1°C/min rate)

Also the flow temperature keeps going up above the set point and when it reaches +5°C above the set point, the boiler shuts down (even before the room reaches the temperature).

After 3 minutes, the boiler starts again, but because the flow temperature is already high, the temperature reaches 80°C in 10 seconds, and then the boiler shuts down (for safety reasons).

Could someone have an idea what could be wrong?

Boiler: Potterton Promax Ultra Combi 40 erp

Thanks,
Ren
 

Reply to Combi boiler - Return temperature going up in the Central Heating Forum area at PlumbersForums.net

Similar plumbing topics

P
Repeated Airlock in Bathroom
Hi, Can anyone advise as to why the cold water to my bathroom keeps airlocking? This originally happened about 12 months ago and has happened 3-4 times since. It’s an upstairs bathroom, fed from a tank in the attic. The tank is about 8 Meters away and feeds a bath, sink and toilet. The tank...
Replies
9
Views
322
Chuck
C
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock