Arrived onsite to investigate insufficient heat on a Ruud propane furnace. The customer stated they woke up to an indoor temperature of 63°F while the thermostat was set to 74°F. They had replaced the air filter prior to our arrival and reported the unit was then operating properly but wanted it checked. Upon inspection, the removed air filter was found to be dirty. The thermostat was satisfied when I arrived, so I had the customer raise the setpoint. I observed the system operate for approximately 30 minutes and cycled it three times. The furnace fired and ran properly each time with no issues observed. I recommended checking and replacing the air filter more frequently. This visit is covered under Jerm’s warranty.
