On April 8, 2021 I arrive to the Blue Shield club member for AC tuneup upon arrival I checked the thermostat and its operations and then went up to the air handler did amp drawls check the blower motor is clean after that I went to the condenser checked all components checked contactor disassembled clean the condenser reassembled and tested operations everything is working properly at this time thank you for your business Mike T
Temperature rise across condenser in ac mode = 53 deg inlet 67 deg outlet on a 54 deg day = 14 deg temperature rise. Compressor amps = 13.2/17.9max Condenser fan amps = 1.29/1.50max Condenser fan velocity = 1800 Run time 30 min. Temperature rise across condenser in heatpump mode = 53 deg inlet 45 deg outlet on a 54 deg day = 8 deg temperature drop. Compressor amps = 12.7/17.9max Condenser fan amps = 1.22/1.50max Condenser fan velocity = 1800 Run time 30 min. Return air temp = 74. supply air temp = 95. temperature rise on heat pump alone = 21 deg. Heat strip #1 amp = 20.5 Heat strip #2 amp = 20.7 Heat strip #3 amp = 21.3 Blower motor amp = 2.3/6.9 Return air temp = 75. Supply air temp = 115. Temperature rise on emergency heat alone is 40 deg. Master bedroom velocity 340. Pink room velocity 780.
I arrived for a reoccurring heat pump problem. We replaced the defrost board and left the system running through the last ice storm. I arrived to find the system completely frozen over from the ice run off from the roof top to build up on the heat pump fam motor blades and prevent the blades from spinning. I defrosted the system at that time and ran the system in defrost. I arrived today and ran the system in heat pump mode and put the defrost sensor in a bucket of ice and tried to trick it into a defrost mode. I also ran the system in the test mode from the defrost board itâ€™s self and I couldnâ€™t get the system to go into defrost at this time. I am going to order a defrost board and a new defrost sensor. I arrived to replace the defrost board and sensor. I found the system to be completely frozen over. Once both components were replaced I ran the system and the system went into defrost by itâ€™s self shortly after I ran the heat pump. All ice melted off and the system cycled back
I arrived for a blue member no heat call on a heat pump. I first inspected the system and found the condenser fan blade to be completely frozen over due to the snow and ice dripping onto the condenser. I made this aware to the homeowner and and explained that the defrost board dose not come with a defrost sensor and that they are two separate components. And that the system will not build up 3â€ of ice on top of the system when the system is running normally. The system is in the off position when the top of the system freezes over. I melted the ice off of the system with a water hose and then cycled the systems defrost mode on. The system came on on defrost and successfully melted the rest of the ice on the unit. I recommended to install a thermostat that will shut off the heatpump when the outdoor temp drops below 36-34 deg. If you decide to install this there kit please let us know and we will do our best to help you in anyway we can. Your friend at Interstate.
I arrived into a heat pump not defrosting. During inspection I put the heat pump in test mode for defrost and it would not cycle. Replaced the defrost board when I was ready to test the generator shut down the heat pump and the electric furnace in the attic so I was unable to test. Customer is going to call the support for the Generator and get back to us when he is up and running. Returned and restarted generac system. System is heating at this time.
I arrived for a blue member ac pm. I first inspected the system located in the attic and found the evaporator coil to be clean but rusted. I also checked all electrical components and found no issues with the indoor system. I then inspected the the conditioner and four the capacitor to be weak and out of manufacture range of operation. I recommended to have the capacitor replaced to prevent a breakdown in the future. The homeowner agrees to the repair and had a $25 coupon. I replaced the capacitor and checked the refegerant charge and all other electrical complaints and for no issues. I inspected the returns filterss and found the washable filters to be extremely clean and in excellent condition. Overall this system is running to the best of of its ability at this time.
I came out for an airflow issue the north east bedroom is only getting a trickle of air and the attic is staying cool. I checked the entire duct system over. I found a couple issues. The return ducts are undersized for the system. Currently has 3-12â€ returns, which is only 900cfm and the system needs 1600cfm. The supply plenum has a 10â€ duct coming off the end of the plenum which is taking most of the air and not allowing the supply plenum to pressurize and disperse the air properly. I recommend increasing the 2 main returns to 16â€ ducts and moving the duct off the endcap and back on to the top of the plenum.