While central heating problems arise from many issues, various troubleshooting techniques may fix specific complications. In the case of uneven heat distribution, air and hot water may be released from radiators to regulate temperatures. Alternatively, a blown fuse may be replaced if a system is unable to produce heat.
A central heating system that fails to evenly distribute heat may be experiencing an accumulation of excess hot water and air within the radiator. Once the radiator is turned off, its key may be used to drain excess fluid into a container held beneath. After the valve is closed once more, the heat may return to its normal distribution.
When the system cannot produce heat at all, the source of the problem may have originated from lack of regular use. If this is the case, the problem may be an inactive central heating pump, which may be tapped lightly with a hammer to relieve pressure. Another cause, however, might involve a blown fuse, in which case restoring it with a new fuse may restore heating power.
In other situations concerning abnormal radiator function, the radiator may be examined for rust accumulation. If there is a significant amount of rust preventing its operation, the radiator itself may be removed and irrigated with water from a hose until the rust has been eliminated.