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You may be able to unlock the phone by connecting to iTunes on a computer it has synced with before.
You might be able to unlock it by signing into I cloud, but only valid if this has been setup and you are iOS 7 (which you most certainly are). Note that you will need the original apple I'd and password used to setup the iPhone.
Opening the door while the oven is cooking will greatly shorten the life of the door switches and lead to failure. Always hit "Stop" first unless the recipe calls for it. The instructions for the child lock are in the owner's manual. To set the lock, press Stop/Clear, then hold the "0" pad for more than four seconds. You will hear two beeps and the display will show "LOCKED".
To unlock, hold the "0" pad for more than four seconds. You will hear two beeps and the display will no longer show "LOCKED".
Error Code: E1 Loss of communication between the Single Zone LCD thermostat and the mod-ule board. LCD will cycle between E1 and the previous mode setting. System will shut down. E2 Open circuit or out of range Indoor Temperature Sensor. Heating and cooling operation will be locked out. Fan operation can continue to operate. E3 Shorted Indoor Temperature Sensor. Heating and cooling operation will be locked out. Fan operation can continue to operate. E4 Open circuit or out of range Outdoor Temperature Sensor (select models). Heat Pump operation will be locked out. Air Conditioner, Fan and Furnace operation can continue to operate. E5 Open circuit or out of range Freeze Sensor. Air conditioner mode of operation will be locked out. Furnace, heat strip, heat pump and fan mode of operation can continue to operate but displays the last temperature set-poi
Remove the thermostatfrom its base and replace the batteries. To remove the thermostat, grasp it atthe edges and pull toward you. The batteries are on the back of the thermostathousing. If this doesn't unlock the touch screen, continue to the next step.
Check that the furnace'sfuse is not blown or that the circuit breaker is not tripped. Replace a blownfuse or reset a tripped circuit breaker, and try the thermostat again.
Press the"Screen" button on the touch screen, then wait for 30 seconds andpress "Done." In many cases, this will unlock the screen and thethermostat will be ready for normal use.
Wait five minutes for thecompressor timer to reset if "Wait" is displayed on the screen. Thenoperate the system normally.
some times inside the boiler on the internal pipework you will see little sensors, on the central heating piping there sometimes is a thermastic sensor on side of flow pipe with a little reset button on ? i guess with the problem you said the poiler locked out and the pipe work overheated ? this is a safety feature on some boilers not, all and easerly reset via this button ?