No Call For Heat
#1
12-21-18, 09:43 AM
No Call For Heat
Hi All
Trane, model TUC060C936A0. Light is blinking slow, continuously which is showing “Normal, no call for heat.”
I had a smart thermostat installed over the summer and the AC works fine. I’m assuming the tech tested the heat but not sure. I contacted their support and after a few basic troubleshooting steps with wiring and settings, they are sending a replacement. Red wire goes to RC, no wire to RH.
If the thermostat is not at fault, what are the first few things I should check? Fan doesn’t come on but will if I switch it to “On”. Thermostat shows that it’s requesting heat. AC works fine. I checked the continuity on the hot ignition which read .6. I don’t hear anything come on or click whatsoever.
Thanks
Trane, model TUC060C936A0. Light is blinking slow, continuously which is showing “Normal, no call for heat.”
I had a smart thermostat installed over the summer and the AC works fine. I’m assuming the tech tested the heat but not sure. I contacted their support and after a few basic troubleshooting steps with wiring and settings, they are sending a replacement. Red wire goes to RC, no wire to RH.
If the thermostat is not at fault, what are the first few things I should check? Fan doesn’t come on but will if I switch it to “On”. Thermostat shows that it’s requesting heat. AC works fine. I checked the continuity on the hot ignition which read .6. I don’t hear anything come on or click whatsoever.
Thanks
#3
12-21-18, 04:11 PM
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Join Date: Jan 2010
Location: USA
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Hi, Bobby:
Just my 2 cents ; did you check the ignitor with an Ohm meter ; should read low resistance between 3 to 10 ohms...continuity is probably okay but if the resistance is higher may not complete the circuit back to board. I assume you have a HSI like a Q3400 or Q3450 ignitor ??
Also, I believe there should be a jumper in your thermostat that connects RC to RH thus only one wire is required to RC ; but not sure.
Finally I believe the W wire is for heat ; double check that.
Again the above are my 2 cents and hope they help you.
Just my 2 cents ; did you check the ignitor with an Ohm meter ; should read low resistance between 3 to 10 ohms...continuity is probably okay but if the resistance is higher may not complete the circuit back to board. I assume you have a HSI like a Q3400 or Q3450 ignitor ??
Also, I believe there should be a jumper in your thermostat that connects RC to RH thus only one wire is required to RC ; but not sure.
Finally I believe the W wire is for heat ; double check that.
Again the above are my 2 cents and hope they help you.
#4
12-21-18, 04:25 PM
Group Moderator
On a call for heat..... the draft inducer blower comes on first.
If that it isn't happening.... don't worry about the igniter.
It's not going to be a blower problem as that's also used for A/C and that is ok.
If that it isn't happening.... don't worry about the igniter.
It's not going to be a blower problem as that's also used for A/C and that is ok.
#6
12-21-18, 08:13 PM
Group Moderator
I use the proper names.... blower and draft inducer blower.
Your main blower is not causing your problem.
Your main blower is not causing your problem.
#8
12-22-18, 09:23 AM
Member
Hi, how long ago was the stat installed? Call the service co. and have them come back and check it out, don’t ASSUME anything.
Geo
Geo
#9
12-22-18, 02:23 PM
It’s the thermostat! Gas and electric company installed it over the summer. Called Ecobee support and they are sending a new one out.
Thanks for the help, all! Major relief that it wasn’t anything major.
Thanks for the help, all! Major relief that it wasn’t anything major.
