Ask Experts Questions for FREE Help !
Ask
    bucky 65's Avatar
    bucky 65 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Oct 29, 2006, 08:07 AM
    Noma themostat 52-2570-6
    WE purchased a Noma programmable thermostat yesterday and are severally frustrated. Hook up was easy but when we connect it the room temperature will not display it reads "HI". Can anyone tell us what we are doing wrong??

    It is a two wire system with only a red and white wire. The red is connected to RH with the jumper in place and the white to the W.

    Because it will not read the room temperature the furnace does not come on.

    Help.

    Bucky 65:confused:
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Oct 29, 2006, 08:29 AM
    Is this manual for your stat? It shows the same model number near the end. I looked at this and cannot find anything that shows it indicating "HI" as in high.

    http://www.upm-marketing.com/images/..._Downloads.pdf

    Check the batteries, try doing the Hard Reset. Let us know if that did not do it.

    Possible the stat is defective.
    bucky 65's Avatar
    bucky 65 Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Oct 29, 2006, 11:31 AM
    Yes, that is the manual for the stat. We have checked the batteries and done a hard reset several times. Even changed the batteries and does not seems to work just keeps reading "Hi" in the spot where it should show current room temperature.

    If it was defective would it actually let you program it? I can go in and program all four programs and the time, etc.

    bucky 65
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #4

    Oct 29, 2006, 12:00 PM
    If you bought it locally, I would take it back and talk to them. They should either take it back, or explain how to make it work. If you bought it on line, look for a tech service number.
    METT's Avatar
    METT Posts: 14, Reputation: 1
    New Member
    		  
    #5

    Oct 29, 2006, 08:42 PM
    Probably the 2 leads of the temperature sensor (probably blue colour) sticking out at the bottom back of thermostat(when you removed it from wall) is shorted together. Gently separating the 2 leads should make it work.
    HandyDavy's Avatar
    HandyDavy Posts: 2, Reputation: 1
    New Member
    		  
    #6

    Jan 29, 2014, 11:33 AM
    When using a two wire hook-up from the furnace the power supply ( usually red ) is connected to the RH terminal. Remove the jumper plate from the RH to RC unless you have two supply wires from the furnace. One being for heat (RC) and the other for A/C (RC). If that's the case then you have a three wire or more set-up. The feed back signal wire from the thermostat is connected to the W terminal and is usually white. So basically you have a power supply wire (red or black) and a return signal wire (white)
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Noma thermostat [ 2 Answers ]

Hi, I have a NOMA Programmable 7-Day Thermostat, but today it seems to have gone strange. I had it on the Cool and heat started coming out of the vents. I thought the air conditioning was broken, so I turned the thermostat off, but a little while later the vent came on with hot air again? How...

Noma thermostat [ 2 Answers ]

I think this may be a typical problem with converting to a Noma programmable thermostat. I currently have a Sears model , 4 wire and a black wire (jumper?) going from RC to 4. There is also a disabled black wire coming from the wall but not connected to anything. Do I eliminate the black...

Honeywell RTH230B themostat / fan [ 1 Answers ]

The gas forced air FAN comes on the second the Thermostat calls for heating, so cold air blows until the furnace heats up. Not sure if it did this with the mercury switch t'stat (new house to me). Should there be a delay for the fan to allow the furnace to heat up? How do I do that on this...

Noma Thermostat [ 1 Answers ]

I have installed two Noma non-programmable thermostats in my bedroom. On controls the heat and the other controls the AC. My question is, why are the displayed temperatures different on each thermostat? They are literally 2 inches apart and the indicated temp on one is 1.2 degrees higher than on...

Honeywell RTH230B themostat [ 1 Answers ]

I recently bought a Honeywell RTH230B 5-2 programmable thermostat. I seem to have misplaced the manual and therefore am having trouble setting it-- Could someone tell me how to obtain another manual on line for this device?

View more questions Search