Why are my central heating return pipes cold?

Flow pipe coming in so boiling hot, no circulation. Have tried heating rads one by one. This works and all rads get roasting, but turn on more and the heat dissappers, return pipes still cold. Have tried balancing to no avail. The plumber has said there must be a blockage somewhere in the pipework, but where, we have no idea.

Is the return pipe on a RAD hot or cold?

If each rad is switched on by its self it heats – roasting, but the return pipe on the rad is still cold. The plumber we have in at the moment has all the correct certs for this system, and hes scratching his head now. Its all just seems weird.

What happens when you turn on the return pipe?

Turn it to CH mode and the return pipe gets boiling hot to touch, boiler runs for 2.37 mins and cuts off, and return pipe flow dosn’t seem to go anywhere. The plumber doing the works now, was not who installed it.

Is the central heating system hot or cold?

All Megaflo System working as required (plenty of hot water) including motorised valves, pump, pressure vessel etc (and plenty of hot water). Whole System was Power Flushed this morning for 5 Hours. No return flow on rads.

Why does my central heating return pipe not work?

These are normally on the return pipe work. Or if you feel the flow pipe work and it is not heating the rad then it might be the wheel head (or TRV) is blocked. There should be no mystery about whether there’s a blockage or not if you have a power flush. When you switch to drain, you see how freely the water flows.

Why did my husband break the hot water pipe?

In the middle of trying to sell our house, my husband accidentally broke the hot water pipe to the washing machine while trying to unscrew the rusted connection from the wall. Hot water started gushing inside the wall, and I ran for buckets and towels as my husband raced to turn off the water main.

What should I do if my heating pipe is making noise?

Everywhere a pipe touches a joist or another pipe, just squash some felt around it. Be careful not to move your pipes too much, you don’t want to loosen any connections, damage the pipe or cause any leaks!

When to replace a water heater vent pipe?

Corroding gas water heater vent pipes should be replaced as soon as possible, to prevent possibility of exhaust fumes / Carbon Monoxide contamination. Single wall gas water heater vent pipe / connector cannot be installed closer than 6″ from any combustible materials such as floor / wall framing, paper, etc.).