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Valliant timeswitch 110 heating system fails to switch on when on constant setting??

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Check the timer switch, there is a micro switch inside that could have been damaged.


tnx 4 using fixya,

drcool

Posted on Oct 04, 2008

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I am new to a heat pump. The thermostat has an 'auto' setting and an 'on' setting. I am confused as to which one to use for heat. Can you help me?


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Hi - I have a RUUD system, the heat won't come on


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Four loads are connected in series across 110 volt dc. the load fail to operate.a voltmeter connected in succession across each device read 0 across the first three loads and 110 volt across the fourth...


If you have four loads connected in series and after the first load you have 0 volts, it is not possible to have 110 volts at the fourth load. If you have four switches in series, and have the problem you are describing it means that your fourth switch is open, and therefore will not pass power to the actual load.

Note- voltmeters measure the difference in voltage between the two leads, so with the power on, if your meter reads 0, the switch is closed, with the leads on either side of the switch, and 110 means the switch is open. On the other hand if you touched one probe to ground, and checked voltage on each side of the switch, you would have 110 up to the switch that is open.

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Fan is still running in house constantly


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