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Why is the bottom of a central heating radiator cold and what can be done about it?
Anjoy
Most likely it's a collection of dirty sludge called magnetite partly restricting water flow through though the radiator. Only way around it it to flush it out. Best way is to drain the radiator , remove it, take it out side & flush it out with a hosepipe. Wet & dirty to do it yourself. Might be easier to get a plumber.
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∙ 16y ago
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What are some problems common with central heating systems?
Air may get trapped in a radiator, leaving it cold at the top whilst it is warm at the bottom. It then needs 'bleeding'. Radiators may also have the opposite problem, where they are warm at the top yet cold at the bottom. This is caused by a build up of sludge in the radiator and will probably require professional help. Sometimes the downstairs radiators stop heating up, whilst the upstairs ones are fine. This is caused by a problem with the pump and will again require professional help.
Why is top radiator hose cold and bottom radiator hose cold?
The thermostat has not opened yet.
How do you drain the radiator coolant on an 1986 Corvette?
there should be a pitcock on bottom of radiator to drain it. or take the bottom radiator hose with motor cold of course .
Why is the radiator empty and car over heating and blowing cold air?
Over-obvious answer? Your radiator, or one of your radiator hoses, leaks - badly.
Why is my BMW over heating and blowing out cold air its a 6 cylinder?
It's probably the radiator. Make sure there's enough coolant in the radiator.
What reason would a bottom radiator hose cold?
The thermostat has not opened yet.
Why do radiators stay cold at the bottom?
That means that the radiator is stoped up with trash and engine coolant is not flowing through the radiator.
Why does your central heating system radiators at the bottom of the house sometimes stay cold when the upstairs are warm?
On/Off valves in radiators turned off or clogged Another possibility is an air bubble in the loop that services the radiators that are not heating. Correction is to bleed the loop.
The biggest use of energy in a home?
In cold weather the water boiler which provides central heating and water heating uses the most energy.
Draining radiator on 1995 cavalier?
* With the engine cold remove the radiator cap * Move a large container under to catch the coolant as you drain it * Drain the radiator by opening the drain plug at the bottom on the left side
Where is the radiator drain cock on a 1999 Pontiac Grand Am?
there may not be one if there is is it on the bottom side and if it is not you candrain it by removing the bottom rad hose The 1999 Pontiac Grand Am does not have a radiator drain valve. To drain the radiator, remove the lower radiator hose. The engine should be cold and the water fill cap removed for venting. I have a 2000 Pontiac Grand AM and radiator drain cock is located at the lower/front (not bottom) at the curbside of the radiator, you will need a hex key to back out petcock. .
Why is top radiator hose hot and the bottom hose cold in 1989 Toyota pickup?
Engines return hot coolant to the radiator through top hose, and cooled coolant goes back to the engine through the bottom hose, so a difference in temperature between the two would not be unusual. Assuming you have allowed the engine to come up to temperature and the bottom hose is stone cold, either the radiator or bottom hose is blocked, the water pump has failed or there is an air lock. A seized viscous coupling on a cooling fan or a permanently running electric fan can also make the radiator over-cool, but the bottom hose would feel slightly cooler than the top hose, not cold.
