Arrived on site to perform warranty on system. Homeowner states they tried to turn on the heat and they got an error code and it didnt work. Error code 270 was displayed on both units, which is error code for no flame sensed on unit. Systems are both dual fuel units. Upon inspection of units found that settings are not set correctly on circuit board for dual fuel. Settings call for jumper W951 on circuit board to be cut in order for unit to recognize that it is a heat pump dual fuel application. Cut jumpers on both systems circuit boards, and reset systems for them to update changes. Cycled systems for heat. Systems came on and started heating, no error codes displayed on either unit. Noticed that thermostats were not connected to WiFi. Helped homeowner hook up both thermostats to WiFi and link them to her phone app. Ensured thermostats are communicating with phone applications. Cycled system, systems are operational upon departure.