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Message
Woke up with no heat - no power to thermostat
Posted on 1/6/16 at 7:28 am
Posted on 1/6/16 at 7:28 am
Went to bed last night around 1130 and heat was working fine. At some point in the night the heat quit working. I get up this morning and check the thermostat and its reading 63 and the unit won't cut on. I Checked voltage to the thermostat and got 2v nothing. I have checked all breakers and nothing tripped. Any one have any suggestions on what else I can check ?
12
Posted on 1/6/16 at 7:31 am to gsvar2004
Is the flux capacitor producing 1.21 gigawatts?
This post was edited on 1/6/16 at 7:33 am
Posted on 1/6/16 at 7:31 am to gsvar2004
Batteries?
Posted on 1/6/16 at 7:31 am to gsvar2004
Be a man.
At least it's not summertime.
At least it's not summertime.
Posted on 1/6/16 at 7:32 am to gsvar2004
no idea
switch isn't broken, pilot light out?
switch isn't broken, pilot light out?
Posted on 1/6/16 at 7:33 am to gsvar2004
Fuse on the inside unit. It will be behind a panel.
Posted on 1/6/16 at 7:33 am to Pectus
Check to see if your air handler is getting power. By thermostat gets power via the air handler. Work your way backwards
Posted on 1/6/16 at 7:34 am to Voorhies7
Ac guys charge 80 minimum. It's a 25 cent fuse.
Posted on 1/6/16 at 7:34 am to Pectus
[quote] Be a man[/quote
I would, but have small kids
I would, but have small kids
Posted on 1/6/16 at 7:36 am to gsvar2004
pull tit off the wall and put new batteries in it
Posted on 1/6/16 at 7:37 am to gsvar2004
Thermostats are low voltage. There will be a small transformer somewhere near the air handler that powers the thermostat. Check it. They are notorious for getting wires kicked/broken when putting stuff in the attic. As mentioned, check the breaker at the unit.
Posted on 1/6/16 at 7:38 am to ugasickem
It's a nest thermostat. Doesn't have serviceable batteries
Posted on 1/6/16 at 7:42 am to gsvar2004
You say the thermostat is reading 63, but also say that there is no power to the thermostat. Which is it?
The thermostat being dead, and the thermostat working but the air handler not coming on are two different things. Clarify which it is and we can probably help a little better.
The thermostat being dead, and the thermostat working but the air handler not coming on are two different things. Clarify which it is and we can probably help a little better.
Posted on 1/6/16 at 7:45 am to gsvar2004
It sucks when things like this happen, but I'll be honest...I haven't used the heater once in my house.
Posted on 1/6/16 at 7:47 am to TigerFanatic99
quote:You're winning this thread so far
TigerFanatic99
Posted on 1/6/16 at 7:48 am to TigerFanatic99
The thermostat isn't getting power from the Rc wire. I guess the nest has an onboard battery backup that allows it to still be on even without getting power from the unit
Posted on 1/6/16 at 8:14 am to gsvar2004
Found a burned up wire up in the air handler.
What would cause that wire to burn up. This is in my air handler , was black coming in from the breaker, to a black fuse looking block and a navy blue going out to the circuit board that had the thermostat wires on it.
What would cause that wire to burn up. This is in my air handler , was black coming in from the breaker, to a black fuse looking block and a navy blue going out to the circuit board that had the thermostat wires on it.
Posted on 1/6/16 at 8:15 am to gsvar2004
I'm not familiar with Nest requirements. It requires a C line I assume? Check the output at the transformer and verify that it is outputting correctly to rule out a broken or nicked wire as mentioned previously. I'm suspect that is the issue though. I would like more to a blown fuse on the control board or the transformer gone bad.
Every time I've seen your problem description, it was an issue with the air handler or heating unit. More than once I've seen the condensation drain back up and trip a sensor that prevents the air handler and header from initiating. Many control boards have a "dummy light" on them. Does yours, and if so is it flashing any error codes?
Every time I've seen your problem description, it was an issue with the air handler or heating unit. More than once I've seen the condensation drain back up and trip a sensor that prevents the air handler and header from initiating. Many control boards have a "dummy light" on them. Does yours, and if so is it flashing any error codes?
Posted on 1/6/16 at 8:20 am to gsvar2004
quote:
This is in my air handler , was black coming in from the breaker, to a black fuse looking block and a navy blue going out to the circuit board that had the thermostat wires on it.
To be clear, the wire from the breaker box to the internal fuse is what burnt up?
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