Why Robertshaw 8600 does not follow program?
If your Robertshaw Thermostat isn't following the set program, ensure that the thermostat is programmed in either HEAT or COOL mode. Verify the program and check the AM/PM indicators for both the current time and programmed time changes. Also, confirm that the program and day of the week settings are correct. Consult the Programming Guide for detailed instructions.
What to do if Robertshaw 8600 display is blank?
If the Robertshaw Thermostat display is blank, flashing, or shows a constant 'LO BAT' message, you should replace the batteries.
Lists key features: backlit display, preprogrammed setpoints, battery backup, low battery indicator, F/C option, accuracy, differential, freeze protection.
Turn off power, avoid 120 VAC, follow codes, do not short terminals.
Specific instruction for heat pumps: do not connect to W1 terminal in HP mode.
Covers thermostat placement, removing the cover, and placing the base against the wall.
Maps old wire labels (M, W, RH, V, Y, H, F, 0, B) to new labels and their functions.
Steps to test the cooling system by setting the thermostat to COOL and checking for operation.
Steps to test the heating system by setting the thermostat to HEAT and checking for operation.
Step-by-step guide to program daily heating and cooling events (AM1, PM1, AM2, PM2).
Lists common thermostat issues (no power, frequent cycling, blank display) and their solutions.
General| Display | Digital |
|---|---|
| Series | 8600 |
| Backlight | Yes |
| Hold Function | Yes |
| Battery Indicator | Yes |
| Power Source | Battery (2 AA batteries) |
| Compatibility | Single Stage Heating and Cooling Systems |
| Mounting | Wall |
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