Rated 1 out of 5 by Benn Not user friendly
We bought this home new with total energy efficient systems built in, including the thermostat, (P) X4146. It is less than 5years old and the thermostat does not function properly. It sticks at 70. no higher, no lower. I am thankful we still have heat, but with my three younger grandchildren living with us, this setting is a little too cool for much of the time at night, even out here in AZ with our dry heat. I think such a well known product name should last longer than less than 5 years?
February 6, 2014
Rated 1 out of 5 by ColdinVA Short Cycles, Does not transition between scheduled and manual settings
You can hear the relays inside thermostat engaging, then disengaging without turning the heat on. This happens 3-4 times and then it just stops. The scheduled heat setting does not always respond. The setting shows "Set To" 68F and the inside temperature reading shows 64F, but still no heat turns on. I manually change from scheduled heat to "Hold" and raise the temperature up to 70F and still the heat does not come on. I have to turn the system from On to Off then back On and I hear the relay engage and the heat now comes on.
This happens intermittently. I have a service call placed for a technician to come out and replace the thermostat. Hopefully Lennox has seen enough of these types of problems with this unit and has a different model to replace it with.
January 7, 2014
Rated 1 out of 5 by Kennedy Cycles too often
This thermostat cycles my heat on about every 10 mins and the furnace runs for about 5 mins and shuts off. The inside temperature on the unit doesn't even fluctuate, it stays at the set point. It seems to have a half degree differential even thought its set at 3 degrees. I've tried increasing the differential and also the cycles per hour and the thermostat still does these short cycles.
November 30, 2013
Rated 5 out of 5 by HappyMia13 Excellent product & wonderful features!
I love the fact that I can do away from home settings on my unit! It's easy and I can't wait to see the savings on my electric bill.
April 27, 2013
Rated 4 out of 5 by jack70 easy to use
No problem using or setting up program
well lit unit at night
April 25, 2013
Rated 2 out of 5 by OoMoment Industrial Relay Noise from Thermostat -Unacceptable
There are six relays in this thermostat... all of them make a loud click when activated. The unit is mounted in the hallway adjacent to the master suite...CLICK CLICK CLICK all night long... if you own one of these you'll become a person who sleeps with a pillow over your ears all night....;-(
March 21, 2013
Rated 5 out of 5 by trucker We love the savings....thanks
Very easy to understand and the screen that lights up when touched is a bonus.....thanks
February 26, 2013
Rated 4 out of 5 by BigDaddy Easy to operate, clean look
Great product, would recommend. Like the compressor safety feature
February 1, 2013
Rated 4 out of 5 by PabloBucksPA Simple and effective energy use management
The thermostat is VERY user-friendly and provides simple adjustment with backlighting so it is easy to see at night as soon as you touch the screen. The only aspect we don't like is that it is noisy - it unfortunately clicks audibly when it turns the HVAC on and off. With that said, we are using on a hybrid duel-fuel Heat Pump/Gas furnace (propane# to maximize efficiency and the HVAC company #highly reputable in our area) has informed us that this is the reason for the audible click. A BIG PRO is that it is capable of automatically switching use of heat source based upon temperature and operational efficiency of Heat Pump, hence it provides optimal operation without any need for attention from us.
January 3, 2013
Rated 4 out of 5 by marla1214 a bit confusing
the scheduler works great until you manually increase or decrease the temp, then it changes you settings and you have to go in and reschedule everything
December 27, 2012
Rated 1 out of 5 by firpo THERMOSTAT Lennox X4147
I have a Lennox X4147 to control a heat and cool
thermopump and gas heater as secundary heat.The problem I have is that it works fine for a few hours and then the fan will not stop and pump supply cold air,keep like this for 45 minutes or more,the reading drops to 65 F(setting at 70 f) then the emergency heat comes on and raises the room temp. to 72.5 ( i have another thermostat that reads 72.5) and the lennox thermostat reaches only 65 f . After a couple of minutes the lennox thermostat reaches 71.5 f and the setting on the thermostat is only 70 f. ( I tried two more thermostats with the same result, it seems the thermostat is slow to react to changes in temp.
December 16, 2012
Rated 5 out of 5 by bobby101 easy to use
very simple love the ability to set for differant times so easily.
December 11, 2012
Rated 4 out of 5 by Rick7 Easy to use
Comfort screen is intuitive and easy to use. We particularly enjoy the feature which allows you to detach the unit from the wall while you program it.
December 1, 2012
Rated 4 out of 5 by Heidibme Very easy to use.
The touch screen is great. Even my 70 year old mother is able to change the settings.
November 14, 2012