I programmed the Robertshaw 9615 Thermostat in our office and since I had to figure out how to do it, I figured I’d post the steps. Read along to learn how to program yours…
How to Program a Robertshaw 9615 Thermostat
Hardware:
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| Robertshaw 9615 Programmable Thermostat with the cover off |
To set the date, time, and other defaults:
Step 1: Press and release both the SET and PROG/MAN buttons simultaneously.
On the LCD you should see nothing but AM or PM and the time.
Step 2: Press the up and down buttons to change the time.
It will go faster if you press and hold the buttons. Make sure you have the AM/PM correct.
Step 3: Press the “SET” button to set the time.
Once you press the “SET” button you will see a single digit on the screen between 1 and 7, proceed to step 4.
Step 4: Set the day of the week.
Monday-1, Tuesday-2, Wednesday-3, Thursday-4, Friday-5, Saturday-6, Sunday-7.
Step 5: Press the “SET” button to set the day of the week.
You will then see: d1 and a 1 on the screen. Proceed to step 6.
Step 6: Set the 1st Stage Temperature Differential.
The default is 1 degree. This is the number of degrees the temperature needs to differ from the pre-set temperature before the first stage of the furnace kicks on. Press the up/down buttons to change this or press “SET” to set it. Go to step 7.
Step 7: Set the 2nd Stage Temperature Differential.
The default is 2 degrees. This is the number of degrees the temperature needs to differ from the pre-set temperature before the second stage of the furnace kicks on. Press the up/down buttons to change this or press “SET” to set it. Go to step 8.
Step 8: Set the residual cool timer.
The default is 30 seconds and this is how long the fan runs after the compressor cycles off. Press the up/down buttons to set this to 0, 30, 60, or 90 seconds. This is only for the cool cycle. Press the “SET” button when you are done and you will be taken back to the main screen with AM/PM, the time, the current temperature, and the thermostat’s set temperature.
To Change from Fahrenheit (F) to Celsius (C)
Step 1: Press and hold the “SET” button and then press the Down button and then release them both simultaneously.
This will automatically change it from F to C or C to F.
To Program the Daily Thermostat Schedule
Step 1: Set the thermostat to the mode you wish to program.
Move the COOL – OFF – HEAT switch into the mode you wish to program (COOL or HEAT). In this example I’m going to pick HEAT.
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| COOL – OFF – HEAT setting should be set to the mode you want to program— COOL or HEAT |
Step 2: Press the “SET” button.
You will see a single digit on the LCD display from 1-7. This is the day of the week you’ll be programming where 1 stands for Monday, 2 stands for Tuesday… and 7 Stands for Sunday.
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| Pick the day of the week you wish to program, 1-7, Monday-Sunday |
Step 3: Pick the day you wish to program.
Press the up/down buttons to pick the day you wish to program and press the “SET” button. Monday-1, Tuesday-2, Wednesday-3, Thursday-4, Friday-5, Saturday-6, Sunday-7. When you press “SET” you will see AM 6:30 MORN (or whatever time it was last set to) on the screen:
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| After you press SET this is the screen you’ll see |
This thermostat breaks the day up into 4 quadrants: MORN, DAY, EVE, and NITE. MORN is like when you are home in the morning before you go to work. DAY is, for example while you are gone at work, EVE, is when you arrive home after work, and NITE is when you are asleep. It is best at this point to pick the times and temps for these periods in advance before you move on because it makes it easier to program the thermostat and it won’t time out on you while you wait (and then you need to go back through all the steps to get back to the place you were in the programming).
Example Heat Schedule for our computer lab:
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| Example schedule for our computer lab |
Step 4: Set the MORN Schedule start time.
Press the up/down buttons to set the time when the morning schedule starts for this day. For this example I chose 7:30 AM. Typically this will be just before you get up with enough time for the furnace to warm up the house for you. Press “SET” when you are done.
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| Setting the MORN schedule beginning time |
Step 5: Set the temperature you wish the thermostat to be at on this day at this MORN time.
Use the up/down buttons to change the temperature. Press the “SET” button again to set the temperature.
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| Setting the MORN temperature |
Step 6: Set the DAY Schedule start time.
Press the up/down buttons to set the time when the morning schedule starts for this day. For this example I chose 8:00 AM but typically this will be the time you leave for work. I am merging the Morning and Day time quadrants into one since this isn’t in a home setting, so this second time didn’t really make any difference. Press “SET” when you are done.
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| Setting the DAY schedule time |
Step 7 Set the temperature you wish the thermostat to be at on this day at this DAY time.
This would typically be the temp you want your home when you are at work. Use the up/down buttons to change the temperature. Press the “SET” button again to set the temperature.
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| Setting the DAY temperature |
Step 8: Set the EVE Schedule start time.
Press the up/down buttons to set the time when the morning schedule starts for this day. For this example I chose 7:30 AM. Press “SET” when you are done.
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| Setting the EVE program start time |
Step 9: Set the temperature you wish the thermostat to be at on this day at this EVE time.
Use the up/down buttons to change the temperature. Press the “SET” button again to set the temperature.
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| Setting the EVE program temperature |
Step 10: Set the NITE Schedule start time.
Press the up/down buttons to set the time when the morning schedule starts for this day. For this example I chose 7:30 AM. Press “SET” when you are done.
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| Setting the NITE program beginning time |
Step 11: Set the temperature you wish the thermostat to be at on this day at this NITE time.
Use the up/down buttons to change the temperature. Press the “SET” button again to set the temperature.
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| Setting the NITE program temperature |
Step 12: Press the “SET” button.
The screen will show an integer between 1-7, signifying the day of the week. Jump back to step 3 and repeat until you program all 7 days of the week.
Step 13: Program the COOL schedule.
Switch the COOL – OFF – HEAT button to the COOL setting to set the COOL program. Jump back to Step 2 and repeat to set all 7 days of the COOL program.
Step 14: Place the Thermostat in the correct mode to run.
Place the thermostat COOL – OFF – HEAT button into the mode you wish to run and press the PROG/MAN button until an arrow points to the PROG on the LCD display to show that it is running your newly programmed schedule.
Here’s a picture of the wiring of this thermostat, while I’m posting pics 🙂
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| The wiring of our Robertshaw 9615 Thermostat |
Someone recently asked me where the reset button of a Robertshaw 9615 thermostat was. Here I’ve circled it:
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| Robertshaw 9615 Thermostat Reset Button Location (with cover off) |
My Other Thermostat Posts:
- How to Program a Robertshaw 9615 Thermostat (this post)
- How to Program a Ritetemp Model 8050 Thermostat
- How to Wire an Ecobee EB-SmartSi-01 Thermostat to a Carrier 58PAV Furnace
- How to Program a Honeywell Thermostat Model T8112D1021
Useful Links
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Is it possible to set it for just one temp. and not program for each day?
To accomplish that you would go through all the steps and just set all temperatures the same for all days.
I am not able to set the weekend to match the week temperature can you tell me what I’m doing wrong?
Setting the weekend is the same process as setting a weekday, just program the same temperature settings for day 6 (Saturday) and day 7 (Sunday) when going through this guide. I’m not able to tell you what you are doing wrong because you have not told me what you have done.
hi trying to change thermostat setting to kick in when there is a 3 degree difference in temp instead of 1 degree which it does now. so when I set it on 67 want it to kick in at 64 instead of 66. thank you.
I am unaware how you’d make that adjustment.
If I leave thermostat at Manual, will it stay at my manual setting or eventually return to programmed settibg?
Hi I need some help! I just moved to a new house and I got this type of thermostat. So my thermostat is programed to be at 77° but is just turn off when it reaches 76° (and to reached 76° it stays on for like 1hour). So There is some way for me program 77° and it turn off on 77°?
Caroline, I don’t have this thermostat anymore so I’m not going to be able to help you any further than this article. This is an old thermostat–I’d encourage you to get a more modern one if it isn’t working correctly.
Hello don’t know if your still answering but its summertime right now and I just want my account to turn on automatically when my house is one degree above 78 Fahrenheit 24/7. Is there an easier way to do this?
You’ll need to set each day and all 4 time ranges to be the same. There is no other way.
Dear John, What is the function of and how does one use the Auto-On button (with an icon of a fan) on the far right?
We live in a cool arid latitude in central Canada. We do not have any air conditioning. We want the furnace to draw air from the cool basement through the ducts to cool the upstairs. I only want this to happen if the temperature goes above 22 celsius. How do I program the thermostat to run the fan to just try to keep the temp down at 22 C all the time, 24/7? without having to program this 28 times (for the 4 daily periods of each of 7 days)? Thanks!
Kerry, that is the fan mode. In “auto,” the fan comes on when the AC or heat comes on. In the “on” mode, the fan runs continuously. So, if you put the fan in “on” it will run and somewhat circulate the air in your house. It is going to pull air in from the cold air returns and then be blown out the vents. Your cold air return is likely not in your basement though. I don’t know how to make your furnace control the temperature of your house with only the fan. About the programming of this thermostat–I don’t know of any other way to program it. It is an old thermostat–maybe you should consider upgrading?
The day of the week is not showing up when I press “ser.”
Is it showing a single-digit number from 1-7? It won’t tell you the day but a number that represents the day– 1 stands for Monday, 2 Tuesday, and so on. Does that help?
Is there such a thing as a simple “temp hold”? I’m sick of these impossible programmables. Give me a dial any time. I just bought a new house and I have this one in one zone and a Ritetemp in another. I have a better chance of getting to the moon than getting this do simply change the temperature. I’m just shutting them off at this point. HELP!
I looked up the manual on that thermostat (which my link at the bottom was bad but I’ve updated it) and the only hold this thermostat has is a 4-hour hold as described here:
Thanks for such comprehensive instructions!
You are welcome. Thanks for taking the time to leave a comment.
Very helpful!