Emergency Heat won't turn on - Ruud UBHC Air Conditioner

I have yet to see a thermostat for a heat pump (guessing it's what you have) that doesn't have emergency heat. It's usually listed as AUX.
If you bump the heat up 10degrees you will probably see a light come on which indicates 'AUX/emergency' heat.
Be sure to turn it back down.
Listing the thermostat model might help someone give a more definite answer.

Your thermostat should have an emergency heat setting. Putting the thermostat in that position should make the electric heat strips only work and keep the compressor from coming on. If your thermostat doesn't have an emergency heat selection disconnect the compressor outside at the power source. Turn the thermostat 5 degrees Above the Rim temperature the electric heat strips should come on.

No theirs no danger in running the Emergency Heat all the time, Emergency Heat is your backup heat mode. when the Heat Pump is not working do to a malfunction or Defrost, the Emergency Heat kicks in. The Emergency Heat is usually electric heaters so your electric bill will be much higher.

What wires land where on

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

IT SOUNDS TO ME LIKE EITHER YOUR SYSTEMS LOW VOLTAGE WIRING IS INCORRECT, MOST LIKELY @ THE FURNACE. IT COULD ALSO SIMPLY BE THAT WHEN THE TECHNICIAN THAT INSTALLED THE T-STAT AT START-UP DID NOT GO THROUGH THE INSTALLER SET-UP & CHOOSE THE CORRECT SETTINGS FOR A DUEL FUEL SYSTEM. TRY THIS " SET THE THERMOSTAT TO EMERGENCY HEAT, WAIT A MINUTE OR TWO & SEE IF THAT TURNED GAS FURNACE ON. IF SO THEN IT'S A SIMPLE FIX IN THE WIRING OR PROGRAMMING & NOT SOMETHING MAJOR! GOOD LUCK!

If your thermostat has an emergency heat setting this means you have a heat pump system.
Yes you need to set the thermostat to heat for heating the house.
The emergency heat setting should never be used unless your outside unit is not functioning.
The emergency heat setting overides the heat pump (the outside unit will not be energized).
The emergency heat setting will run the auxillary heat (heat strips) only.
When the thermostat is set in the heat position the heat pump will run to heat your house.
If the heat pump can't keep up (extreme cold) then then the auxillary heat will kick in to augment the heat pump until it satisfies the thermostat settings. If your room temperature gets 2 degrees below your thermostat setpoint, your auxillary heat will kick on. Example, say you are going to be gone a couple of days and you turn your heat down to 60 degrees. When you return and it is 60 degrees in your house, you turn the thermostat up to 70 degrees. Since you are turning the temperature up 2 degrees or more (10 degrees in this case) from the 60 degree room temperature then the heat pump will come on and the auxillary heat strips. The unit will continue heating like this until the temperature in the house gets to 69 degrees and the heat strips will turn off and the heat pump will continue to run until the 70 degree setpoint is reached.
Hope this helps.
SeagullAC

If it is a heatpump, the outside unit should not turn on below 35degrees or so. Below that temperature, the unit cannot effeciently exchange heat. When the outside temperature is low, the system automatically switches over to auxillary heat which uses the same heating elements as emergency heat.

W1 and E on stat need tied together. When W1 comes on wire where all heat elements come on. On the outside unit defrost board set the 45-60-90 to 45 and see if that takes care of the frost problem.

The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.