Phoenixville, PA

6/5/26. Ran system in cooling mode ( could not test at last visit). Went over reversing valve testing. Checked for 230 v after 3 minutes. It went away , by the troubleshooting chart this indicates a failed reversing valve stuck in heating mode. Will go over info with our office.

6/4/26 performed precision a/c tune up on 2019 carrier a/c. Replaced 20x25x4 air filter, provided by homeowner. Checked all electrical connections and components. Flush condensation drain with water. Recommend installing an ez trap with a float switch to protect from water damage. Checked temperature split. Tested outdoor capacitor. Also found no surge protection for inside control board an ecm motor. Provided estimate to install. Checked refrigerant pressures and temperatures. A/c is working at time of service.

6/2/26. Fully assessed no cooling situation on 2016 magic pak package a/c system. System was recently charged up by maintenance. 410a refrigerant pressures were 329/109. Performed electronic leak search over evaporator coil and condenser coil. Found that the evaporator coil is leaking. Wayne would like us to provide estimate to replace package unit evaporator coil. Also since system is 10 years old professional recommendation is to replace the unit due to any other mag or repairs that could occur on the system. A/c is working at this time.

6/2/26. Removed existing control board from mini split heat pump. ( not an easy task). Installed new control board and tested operation in heating mode. Was not able to test in cooling mode due to temps in entry way were too low. Wayne will let us know wants temps get higher . System is working properly at time of service.

5/29/26. Installed new 75 Va transformer. Found 2 of the relay boxes are getting a call. Disconnected tons of wiring if different combinations. Still sending power to 3r and 1r. Also cleaned up high voltage wiring grounds that were loose. Need to get another set of eyes on this job. At this point customer has hot water and no chattering.

Luis 5-28-26 performed ac tune up on first floor geothermal unit, second floor American standard heat pump, and Mitsubishi ductless system with two indoor heads. Geothermal unit; check all electrical connections and components, clean air filters, I also clean fresh air system filters. Tuned off humidifier for season. Clean and test pump ok check supply and return air temperatures, check water pressure and temps added water to geo loop. Inspect refrigeration coils. There is lot of rust and corrosion on copper coils. Compressor starting to make grinding noise from impellers system is from 2012. System currently operational but at end of normal life expectancy. Due to age and likelihood of issues moving forward, replacement of system is recommended American standard split heat pump. Replacement of 213 filter, check drain and test operation, drain was slow. I had to use drill bit to open up drain pan opening, drain connection is connected to auxiliary not primary opening, (is been like t

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When I arrived and tuned boiler on I found 13 volts between TT on each of (6) relays. And relays were chattering. Relays are shut or partially shut for each zone even if there is no demand for the thermostats. Even when wires are taken out of thermostats altogether I was still measuring 0V between T T contacts. Unfortunately I couldn’t resolve the issue. I took one wire out of TT at each relay to stop the chattering for now. Need to schedule a return. Also set warm weather shutdown to 72° Meaning boiler will not operate fo space heating if outdoor temperature is 72° or higher.n

5/19/26. Found system fully operational and cooling when I arrived. Customer is experiencing a “u2” error code at times. Called Mitsubishi tech support. Left message with my phone number in the queue. Homeowner reset system and it did not function correctly. After some time the system did start working. Possibly a bad discharge thermistor for the compressor giving false readings to the board. Tested th4 on electrical diagram which was compresser thermistor. It was 67.3 k ohms. Tech support never called back when I was on site to verify if this is a good reading or not. At this point system is operating properly. Customer may want jumpers cut for cooling as well do to over cooling.

Luis 5-12-26 performed ac tune up on two Trane ac units 3.5 for first floor and 2.5 for second floor. Replacement of both 413 filters. Flush drain test pump ok. Inspect coils and blower. Check all electrical connections and components low and high. Inspect coils. During inspection I noticed both heat exchangers failed sometime during winter. Both have separations/cracks on heat exchangers. I explained situation to customer and provided estimate for repairs. Check outdoor units electrical and refrigerant components. Found both units running low on refrigerant, first floor still cooling at minimum levels. Second floor is very low on refrigerant and not cooling at all. 8 degree split. Both units are from 2013. I would high recommend system replacement, repairs could be the same cost as replacement. I emailed estimates for repairs. • No obligation quote to replace system • A Comfort Specialist will provide several options to suit your comfort needs and budget • New equipment can offer bet