12/02/2025- I arrived on site today and found the furnace tripped out on high limit safety due to poor airflow that was caused by all filters in the house being dirty. I removed all dirty air filters and replaced the 20x30x1 filter since that’s all the homeowner had on hand. The customer has signed and approved of an estimate for a case of 12x12x1 and 16x16x1 air filters to replace what I had to remove to get the unit working. The customer has also approved of an estimate to clean the condenser coils since they are extremely dirty as well. I have ordered the filters and will clean the condenser coils when I come to deliver the air filters. I tested the unit after removing the dirty air filters and verified that the unit is working properly and without issue at this time. We will call and schedule a time for filter delivery/installation and the condenser coils since they cleaning with the customer.