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Changed thermostat for ac on second floor, also removed the second floor heat thermostat and wired it into the ac stat so it runs the whole house ac and second floor heat, still need to return once company gains access to basement.
Performed heating maintenance, checked air filters ok. Tested electric back up heaters. Checked voltage, amperage and electrical connections, measured capacitor values. Started heat pump, calculated btu output. Tested defrost cycle. Checked operation and temperature rise across coil.
No heat 3rd floor system. Found nearly Entire length of 3/4â€drain pipe severely clogged. Cleaned pipe by using nitrogen, cutting sections where accessible. This has been a problem for sometime. Water had backed into equipment pan and blower compartment, tripping wet switch. I dried pan and blower compartment. One section behind “mechanical room†where furnace is located was pitched backwards. Corrected piping for proper pitch at this point. Should this problem recur we will have to repipe drain from this system entirely either by adding a condensate pump and finding a spot for it or by rerouting piping elsewhere.
Found 3rd floor system 100KBTU two-stage Amana furnace not heating. Open high limit error code. Dirty filter. Encouraged homeowner to become a plan member for each system in the house. Homeowner decided to become plan member for this system alone for now. Replaced filter and performed heat tune up. Measured static pressure and temperature rise. Checked gas pressure. Checked ignitor. Cleaned flame sensor. Checked all controls, wiring, electric motors and components. Humidifier did not have a pad. Serviced humidifier and verified operation. Performed combustion test. Combustion/draft test: Passed We Have Serviced the other systems in the past. Furnace is operating well at the time of this service. Heat tune up under this new plan membership is comple.
Arrived to get all information on systems and do heating maintenance on the boiler. System has 5 stats, 3 are two wire only and only control the heat, two are both heat and ac, there are two ac units upon the attic. Went over options about the stats and recommended Joe come out to go over all options between replacing equipment or just thermostats. As for the boiler, checked gas pressures, vacuumed out heat exchanger, checked combustion, checked leaving and returning water temps. System was working but the thermal limit was not always making contact and wouldn’t let the system run, replaced thermal limit and system is working correctly at this time.
Performed heating maintenance on 2 gas furnaces, checked air filters ok. Blew out condensate trap and drain. Cleaned burners and flame sensor, inspected heat exchanger. Checked voltage, amperage and electrical connections. Started gas furnace, tested limit and safety switches. Measured fuel pressures and performed combustion test. Checked operation and temperature rise.
Heat pump overheating, thermostat set to cool and system is pumping hot air, relay not Energizing, currently nest thermostat is in placed, jumper wires at stat base and system works ok, cycle unit heat and cool mode ok, replaced thermostat with smart T6 WiFi check operation ok
Service call that the Second Floor Furnace was not working and water was in the Auxiliary Drain Pan. Upon arrival found system operating and homeowner had removed Wet Switch and dried Auxiliary pan and wet switch. Signs of water were present around the base of the furnace but found no water inside the Furnace Cabinets. Checked Drain Lines of Furnace and put system in operation to monitor. Checked Vent Piping drain fittings to ensure there were no leaks. Found humidifier panel was extremely corroded and aphid growth forming on it. Humidifier was turned on was running. Removed Water Panel and shut down humidifier. Homeowner did not want serviced at this time. Water may have been not flowing through the water panel properly due to being so corroded. Placed Wet Switch back in the pan and homeowner is going to monitor. Found no signs of water leaking from the unit at this time. Replaced 20x25x1 Air Filter provided by the homeowner. System has not had any maintenance performed in several yea
Returned to replace heat pump under warranty. Pumped down old pump and removed. Brazed in new heat pump with nitrogen. Leak tested to 300 psi and evacuated down to 200 microns. Tested in heating mode and found pressures to be slightly high due to warm day but normal. Will return on a colder day to verify. System working well at time of install.
Pumped down unit and replaced liquid line. Brazed in with nitrogen and pressure tested to 300. Evacuated down to 375 microns. Released refrigerant and tested in cooling. Pressures looked fine. Tested in heating and head pressure increased to 650. Suction stayed around 150. Tried removing charge and found no change. Static pressure was 1.4inwc. Will advise customer on repair.
Found unit locked out at outdoor unit on cycling off pressure switch. Found that in cooling mode system will run ok but in heating mode head pressure is pushing over 600 psi. Found that on the exsisting duct work there is only 5 6†supplies. And on the return there is a 12†and a 10†return flex which pulls in the cavity of 2x4 walls. With the new system the duct work needs to be altered to be able to get the correct air flow in heating mode. Went over my findings with the office and told vien we will be getting back to her as far as a solution to the duct work. Liquid line on refrigeration side is also 1/4†will look into weather this needs up sized to 3/8†or not. Also performed 6 month inspection.
Performed Quality Assurance inspection on a newly installed heat pump system. Air handler in very tight area. Tried multiple times to get to access panel to check wiring. Was unable to get to it. Customer said everything has been great since we were here last. Didn’t find a service record on unit. System running great at time of QA
No ac, customer stated unit would not come on, found system off upon arrival, nest thermostat set to 84 room temp is 80 stat is in cool mode, lowered set point to 70 and unit came on with no issues, check operation supply and return air ok 73/50 check outdoor pressures ok 6 sub cooling and 8 super heat, 280/110 check wiring ok check wiring on stat ok no issues were found drain is draining ok cycle unit ok
Installed new amana heat pump system. Tested system in both heating and cooling. Adapted to supply and return duct board. Installed new disconnect and power wire. System is working fine at time of install.
Performed precision a/c tune up on 2 amana a/c systems. Replaced 1 Aprilaire 413 air filter and 1 Aprilaire 213 air filter. Checked all electrical conections and components. Blew out both condensate drains. Tested operation of condensation pump in attic. Adjusted back damper feeding second floor bathroom. Checked refrigerant pressures and temperatures at indoor and outdoor units. Both systems are working fine at time of inspection. Homeowner talked about hearing a noise when blower in attic comes on , found metal duct work does flex when blower comes on but nothing to be concerned about.