If your heating system is electric and is failing to produce any heat, it could be that you are facing an issue with your circuit breaker. If a fuse has blown and tripped the circuit breaker, you will need to replace the fuse and flip the breaker back on to solve this problem.
If the problem still persists, it could be that there is a problem with the thermostat itself and it could be as simple a fix as changing the batteries if you are using a digital thermostat.
Simple cleaning the thermostat is a vital part of basic maintenance of central heating systems too.
http://www.jandpplumbing.co.uk/central-heating-system-basics-need-know/
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