The heating times and room temperatures are controlled by a Programmable Room Thermostat which is the responsibility of the property owner and not Blackberry Hill RMC. Please make sure that the battery in the unit is charged / replaced, that the programmer is switched on and the thermostat is turned up before contacting Blackberry Hill RMC regarding no heating. Call outs where our engineers identify the Programmable Room Thermostat as the cause of lack of heating will be charged to the customer.