Phoenixville, PA

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

Luis 5-12-26 Performed ac tune up on 3 ton American standard heat pump. Replacement of customer supplied filter. Test drain and clean pump ok. Vinyl tubing should get replace soon, provided estimate to replace it. Check airflows and inspect coils. Indoor coils showing some bacteria growth. I share information about coil contamination system. Check outdoor unit refrigerant levels and electrical readings, compressor and fan motor ok. Cycle heat pump ok. Water heater is from 2013 I provided estimates for water heater options 50 gallon electric.

Issue is system producing 93°+ supply air when running in cooling. Wayne did reset power and made sure filters were clean.n When I arrived there were no error codes. Found reversing valve coil reasons 1.19kOhms which is within range according to troubleshooting guide. Also found 215 volts present from control to reversing valve contacts CN721 after resetting power and waiting 3 min. According to troubleshooting flow chart, new control board is needed. See photos. *I also turned dipswitches 8 to OFF per instructions to do so if not using the Mitsubishi brand remote controller. We need to order outdoor control. System was installed February 2025. Covered under Dibiase guarantee.

5/6/26 Dan I arrived to Donna’s home to service her 13 yr old , 4 yr old and 2 yr old Trane a/c systems. I checked the wiring connections and the voltages on all systems . I checked and found on the indoor air filters for all systems are fine , the filter sizes are (3) 16x25x4 (1) 20x25x4. I Inspected all indoor coils and tested the primary drain pan and cleared and tested the drain lines. I flushed the drains with water to tested the trap and the pumps. I Took indoor temp splits at the return and the supply on all systems , and checked the blower motor amperage draws. I looked at the outdoor units and the wiring connections and voltages . I inspected the outdoor components and checked my unit pressures by using super heat sub cool method. Everything is working fine.

5/1/26 Dan I arrived to the customers home to service their 15 + yr old Lennox a/c system. . I checked the wiring connections and the voltages . I checked and replaced the indoor air filter , filter size is a 16x25x4 customer supplies. I Inspected the indoor coil and tested the primary drain pan with water and flushed the drain line and cleared. I Took indoor temp splits at the return and the supply and checked the blower motor condition and operation. I looked at the outdoor unit wiring connections and voltages . I inspected the outdoor components and checked my unit pressures by using super heat sub cool method. The system is currently operational but past normal life expectancy. Replacement of system is recommended in the near future.

5/1/26 Dan I arrived to the customers home to service their 8 yr old Amana a/c system . I checked the wiring connections and the voltages . I checked and replaced the indoor air filter , the filter size is 16x25x1. I Inspected the indoor coil and tested the primary drain pan and cleared and tested the water drains and traps if applicable. I Took indoor temp splits at the return and the supply and checked the blower motor condition and operation. I looked at the outdoor unit wiring connections and voltages . I inspected the outdoor components and checked my unit pressures by using super heat sub cool method. System in good operating condition at this time. I left the customer a 3 tier options for different types of water safeties for him to review.