Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Does the thermostat always show the current temperature even in non-backlit mode or is the screen blank until the thermostat is turned?
Document: The thermostat worked fine when it was installed. After two weeks it started behaving erratically, losing its set point. I came home one day and the temperature was in the 80's whereas the set point was mid 60's. The heat had obviously been on for quite a while. When I rotated the housing to access the set point it would first not respond at all (blank) and, after a number of tries, show the correct set point for a moment before reverting to a temperature in the high 80's.
I buy one of these every year as they do not last too long. That said, the temperature control is very tight at 1 or 2 degrees at most. Quiet too. We had a White brand once and it clicked loudly every time it turned on or off. Pure junk.I just wish that they would last longer.Ron
Just installed the thermostat and it is dead. The display will not work. Although it did kick on my boiler, I just don't know what temperature it is set to without the display. Contacted Amazon - new one on the way. If this one is DOA, I will change models.Will Update when item arrives.
Therefore, I assume the thermostat was showing a bogus set point in the 80's rather than reading the room temperature. I had to pull the thermostat from the wall to shut off the heat.I see from the reviews that a number of users had a similar problem. I probably should not have taken the chance to buy it but it was exactly what I wanted for a heat only system and some customers did have good luck with it.
When the boiler control circuit removes all power from the five zone relay switches, the 24 volt control circuits have no power -- no 24 volts to maintain the circuit in the thermostat. In effect, the thermostat usually just loses its &#34;mind&#34; due to the temporary loss of power. When the boiler has recovered to its set temperature and stops firing, the boiler control circuit reapplies power to the hydronic zones and power is restored to the thermostat.
Each heating zone is controlled by a thermostat connected to a 24 volt relay coil in a Honeywell relay switch which, in turn, controls the circulator pump for that zone.In order to insure optimum recovery when the boiler temperature drops low enough to fire the boiler, the boiler control circuit is wired to remove all power from the hydronic heating zones when the boiler fires. That way, the heating load on the boiler is suspended while the boiler is reheating.
For my purposes, it's one star because I can't give it zero. For someone else's system which maintains control circuit power (I would think that would mean anything but a hydronic system such as mine), I would still recommend this thermostat. It's a classic looking unit with, as a year's experience has proven, a very accurate ambient temperature indicator and a very accurate control circuit. For a different system, then -- five stars. Taking the average of the two scoring scenarios -- three stars!
I bought this to replace an old mercury t-stat that had one of those old slide controls. I wanted one that would set to a specific temp without a hassle. It worked OK for about a year and then I started having trouble with it. We got back from a short trip and found the house to be very cold. The display on the stat was blank. I assumed that there was something wrong in the wall furnace and started digging into that.
I'm glad to find this one again. I bought four of them several years ago and they worked flawlessly. Moved to a new home and wanted this one again and it's not in the local home improvement stores anymore. Love the light-up feature so I can see the temp. I like the turn to adjust as well, as my digital thermostats with the soft buttons always end up sticking after more than a year of use.
Arrived on time, fit the existing location. The lighted dial works great for night time temperature changes. Would recommend for anyone with heat-only need
Answer: no