Question about Honeywell TH6320R1004 Programmable Wireless Thermostat

1 Answer

It has a blank screen after power outage...I have change the battery

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,917 Answers


Make sure two fresh AA alkaline batteries are properly installed. Since you have changed the battery then the thermostat only does this when there is no common wire. If the common wire is present, check it for continuity, look for a short, a broken wire, or a bad connection. If the equipment is a heat pump, or heat only or cool only, you MUST have a common wire. If the equipment is gas/electric, the stat will work without a common, but if it goes blank when starting the heat or cool, add the resistor (included with the thermostat) at the equipment side (not at the thermostat!) between W and C.

Please get back to us if you have further query else please accept the suggestion.

Thank you for contacting

Posted on Apr 09, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

We have an XE-A217W which has decided not to work following a power failure. The printer still scrolls but the screens remain blank

Hi Trevor.
By 'scrolls' I guess you mean 'feeds paper'?
If display screen is blank since the outage, try switching off and unplugging the printer for a minute or so, then re plug.
Unfortunately, a power outage often results in surges and brownouts while power is being restored, which can disrupt or damage electronics and electrical devices.
The board may have fried.

Nov 23, 2017 | The Office Equipment & Supplies

1 Answer

Why do i get a blank screen

Your thermostat likely has internal batteries in it, and they are dead. The batteries are there to prevent the thermostat from forgetting any special settings you made, should there be a power outage.

To access them, remove the thermostat body from the wall. It may slide up and out, it may have a screw or two (very uncommon). Usually, you pull gently straight out on it while wiggling it a bit, and it will pop out.

Google search for instructions on your specific model should it not be readily apparent how to remove it. Once off, the batteries can easily be changed.

Mar 17, 2015 | Heating & Cooling

1 Answer

Honeywell TH9421C1004 blank screen after power outage

We'd love to help resolve this. Please give us a call at 1.855.733.5465 and our customer support team will be happy to troubleshoot with you.

Sep 01, 2014 | Honeywell TH9421C1004 VisionPRO IAQ Total...

1 Answer

My screen on my partner 18d displays a message of replace system battery w/power on. what does that mean?

the system battery is there for example a power outage, if a power outage occures then the battery will keep the phone from resetting and loosing all of your phone numbers. so depending on what kind of battery it needs then you might want to call the manufacture.

Aug 14, 2009 | Avaya Corded Phone avaparp18d

1 Answer

Monitor goes blank after a second after power outage

what happend is your monitor cought the brown out and the power supply capcitors are not defective and what that means is the monitor needs to be repaired there is no quick fix please rate accordenly thanks.

Apr 24, 2009 | Dell E173FPc 17" TFT LCD Flat Panel...

1 Answer

I have GE telephone model # 21028GE3-A, and the screne is blank on both units. Instruction book said to replace the battery and charge it for 16 hours. the screen is still blank. What do I do now?

Did you get an answer to this? We have the exact same problem and cant find out manual. The screen is blank and after we had a power outage we were not able to get a dial tone. Without the screen we too are blank.

If you know how to get this thing started pls email us Thanks


Jun 06, 2008 | GE Lands Phones

1 Answer

After power outage, TV screen is blank

It sounds funny but, unplug the set for 30 seconds to allow the TV to reset then see if the problem still is there.

Apr 10, 2007 | JVC LT-26WP84 26 in. LCD Television

Not finding what you are looking for?
Honeywell TH6320R1004 Programmable Wireless Thermostat Logo

Related Topics:

325 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Home Security Experts


Level 2 Expert

78 Answers


Level 3 Expert

4349 Answers


Level 3 Expert

79851 Answers

Are you a Honeywell Home Security Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides