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I have a shaw thermostat and screen went blank. I checked

Customer Question
I have a robert shaw...
I have a robert shaw thermostat and screen went blank. I checked breaker, thermostat has no batteries, and I have found where fuse is and changed it. Still blank. What should I do?
JA: OK. To minimize me, please click the down arrow at the top right corner of this box. OK. To minimize me, please click the down arrow at the top right corner of this box. I'll do all I can to help. Tell me a bit more about what's going on so we can help you best.
Customer: Thermostat screen went blank.
JA: Is there anything else the HVAC Technician should be aware of?
Customer: No
JA: I'm sending you to a secure page on JustAnswer so you can place the $5 fully refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and connect you two.
Submitted: 1 year ago.Category: HVAC
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Answered in 3 minutes by:
3/19/2016
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,767
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

hello,

can you tell if the the furnace has power? any hum, any lights?

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Customer reply replied 1 year ago
Only when I push the black switch. Then lights come on and it hums.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Thank you,

Tape thatt switch down or put door back on...Is this unit in attic, or does it drain to a pump or floor drain?

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Customer reply replied 1 year ago
Floor drain
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Thank you,

In the furnace..

what is the make/model

Is alight blinking or solid?

Some faults can cut power to thermostat

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Customer reply replied 1 year ago
Rheem classic 90 plus. Solid green lights.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Thank you,

we can narrow down quickly now...At thermostat...remove top section...locate wire on R and wire on W...connect them together wirh a u shaped wire, paperclip etc..or remove and twist together...tell me if furnace starts

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Customer reply replied 1 year ago
I don't see R and W?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

do you see the thermostat wires and where they attach?

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

what terminals do you see and what color thermostat wire is attached

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Customer reply replied 1 year ago
I see white, blue, yellow, green, red, and black.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

what terminal is red and white on?

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Customer reply replied 1 year ago
Red is on R and white is on Y
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

there is no W?

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

usually yellow = y

white = w

red = r

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Customer reply replied 1 year ago
From what I can see nothing is in W?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Strange...has thermostat been replaced?

Take the red wire and green wire and connect and tell me if furnace blower kicks on

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Customer reply replied 1 year ago
No. It worked this afternoon and when my wife turn on the furnace the sreen went blank. I've checked everything.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

the furnace shows power...but no power is getting to thermostat.

Have you checked the wire from the time it leaves R in the furnace to the thermostat?

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Customer reply replied 1 year ago
No. Wish I could take a picture of this and show you.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

you can...you can use paperclip icon or "attach files" button

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Customer reply replied 1 year ago
Did you get my picture?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

no I did not.

I will opt over to someone who will be online longer to assist you..

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HVAC Technician: HVAC Guru, HVAC TECH replied 1 year ago
HVAC Guru
HVAC Guru, HVAC TECH
Category: HVAC
Satisfied Customers: 15,852
Experience: 20yrs in the HVAC industry with certificates and degrees.
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IF you still need help tonight I can assist

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Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
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