Question about Heating & Cooling
I turn up heat setting and still no heat
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Posted on Jan 02, 2017
SOURCE: Light goes on and off
If the power comes on the power box, that is good, so the only the is the mother board is bad, replace it. they have nubers on the that tell you what kind it is. search the web, you can find the new on ebay check, and you can put it in your self and save time and money.
Posted on Nov 28, 2007
Most of these problems are the program settings on these way overcomplicated thermostats. You will need to re-read the instructions on setting the programs. Or bite the bullet and buy a cheaper and simpler one. If you installed it yourself, make sure the settings on the inside are correct, like gas/electric heat, and 24 volts, stuff like that.
Posted on Mar 14, 2008
I noticed the same thing on mine. I determined that the unit turns on the fan AND Hard Drive during the period of 11:59 to 12:00 BOTH AM and PM and continues to run until the unit is cycled on and off either with remote or by a program. I used a stethoscope to listen to the Hard Drive humming inside; when the unit is cycled off I could hear the Hard Drive shut down, and a second or 2 later, the fan shuts off. I had purchased several other new units thinking I would return the "defective" one. Testing them, (by setting the clock to 11:57 and wait) both other 2 units did the exact same thing. So I assume that's a software "oops" on probably all units.
My "solution" is to set up "dummy programs" to record for 1 minute after those time periods: like 12:03 to 12:04 AM and PM on a daily schedule, and I pick a channel I usually don't record. The 00:01:00 recording time and "special" channel number make it easy to quickly identify the unwanted "dummy programs" and I use the "multiple title delete" feature to periodically delete them.
So I accumulate 2 titles per day, but I prefer that to having the hard drive run all the time.
Incidentally, I talked to a sevice rep at Philips, and the only thing they could offer is to set up a return for refund. The Philips 3576H is, in my opinion, a fantastic unit and I think the little glitch is well worth the benefits of the features it provides. How did I ever live without it???
Posted on Apr 10, 2009
Trace the wires (small cable) going to the out door unit. This is your 24v control circuit. when it enters the outdoor unit it ties to wires routing through the inside of the unit trace these down. For AC units 1 usually goes directly to the "contactor" (the item you push in and the unit runs?) the other wire can also go to the other side of this same item. But I suspect it goes through other tings before it finally gets there.
Some items are the high and low pressure switches and a delay timer.
A red button sticking out where you can reset it is the high pressure switch and if it clicks and lets it come on you may have a dirty outdoor coil or a fan motor outdoor that is not operating all time.
A low pressure switch has no reset normally on AC or HP.
A delay timer will have 2 3 or 4 wires depending on the type of timer. 1 of these wires goes to the contactor (usually) and one of them feed this wire. remove the wire going to the contactor. now 1 at a time take the other timer wires and touch them to the wire just removed. if the times is bad the contactor will click when you touch one of them with the removed wire.
If its a heat pump you will have to make the contactor try to come on around the board. and this you will need some knowledge on which and what feeds your contactor. Here Id suggest a technician. If I had a way to see your setup and wiring I could talk you through this but its too hard to type and would take way too long.
Posted on Jun 27, 2009
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